Summary

ef19db878df5745d_backup.exe

File ef19db878df5745d_backup.exe

Summary
Download Resubmit sample

Size 122.8KB
Type PE32 executable (GUI) Intel 80386, for MS Windows
MD5 1d9dff421f7241d9c7a8eae9a2c8b4ab
SHA1 f1e64fc8288ef8a53c86ff0a5f3202b686c19e17
SHA256 ef19db878df5745d76d8681a5301048e081e96c651b08aef4cb28d57e40e07ef
SHA512
4d4e164561331943ba092c39d216ec9d7201fbc8dad4c4943d900e02895b90de1f6a25417ca96251efe94ed9f5f06907928d5d12d10310ace8e72496797ceb7c
CRC32 BF53AC18
ssdeep None
Yara
  • suspicious_packer_section - The packer/protector section names/keywords

Score

This file is very suspicious, with a score of 10 out of 10!

Please notice: The scoring system is currently still in development and should be considered an alpha feature.

Autosubmit

Parent_Task_ID:6689158

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 16, 2025, 10:09 p.m. July 16, 2025, 10:17 p.m. 481 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-12 01:48:29,015 [analyzer] DEBUG: Starting analyzer from: C:\tmppw5mq4
2025-07-12 01:48:29,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\msBxqZppuNBQeTeEwMLJZybFfwYP
2025-07-12 01:48:29,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\bFCyyfLnAOSjyFvECbZGHvfKBw
2025-07-12 01:48:29,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-12 01:48:29,030 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-12 01:48:29,375 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-12 01:48:29,375 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-12 01:48:29,842 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-12 01:48:30,046 [analyzer] DEBUG: Loaded monitor into process with pid 504
2025-07-12 01:48:30,046 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-12 01:48:30,046 [analyzer] DEBUG: Started auxiliary module Human
2025-07-12 01:48:30,046 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-12 01:48:30,046 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-12 01:48:30,108 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-12 01:48:30,125 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-12 01:48:30,125 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-12 01:48:30,125 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-12 01:48:30,296 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\ef19db878df5745d_backup.exe' with arguments '' and pid 2296
2025-07-12 01:48:30,500 [analyzer] DEBUG: Loaded monitor into process with pid 2296
2025-07-12 01:48:30,562 [analyzer] INFO: Added new file to list with pid 2296 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-12 01:48:30,578 [analyzer] INFO: Added new file to list with pid 2296 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-12 01:48:30,671 [analyzer] INFO: Injected into process with pid 1332 and name ''
2025-07-12 01:48:30,842 [analyzer] DEBUG: Loaded monitor into process with pid 1332
2025-07-12 01:48:30,921 [analyzer] INFO: Added new file to list with pid 2296 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-12 01:48:31,015 [analyzer] INFO: Added new file to list with pid 2296 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-12 01:48:31,890 [analyzer] INFO: Added new file to list with pid 1332 and path C:\backup.exe
2025-07-12 01:51:49,296 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-12 01:51:50,342 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-12 01:51:50,342 [lib.api.process] INFO: Successfully terminated process with pid 2296.
2025-07-12 01:51:50,342 [lib.api.process] INFO: Successfully terminated process with pid 1332.
2025-07-12 01:51:50,375 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-16 22:09:25,342 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:26,364 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:27,387 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:28,407 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:29,426 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:30,453 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:31,486 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:32,505 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:33,522 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:34,539 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:35,571 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:36,587 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:37,607 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:38,627 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:39,649 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:40,673 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:41,704 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:42,726 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:43,754 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:44,778 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:45,807 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:46,829 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:47,850 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:48,877 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:49,918 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:50,948 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:51,969 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:52,993 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:54,016 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:55,033 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:56,067 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:57,106 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:58,125 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:09:59,145 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:00,166 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:01,185 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:02,197 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:03,295 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:04,328 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:05,357 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:06,395 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:07,428 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:08,486 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:09,526 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:10,598 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:11,620 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:12,650 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:13,684 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:14,704 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:15,724 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:16,744 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:17,765 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:18,790 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:19,809 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:20,834 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:21,852 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:22,870 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:32,999 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:34,138 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:35,196 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:36,246 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:37,506 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:38,560 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:39,803 [cuckoo.core.scheduler] DEBUG: Task #6721779: no machine available yet
2025-07-16 22:10:40,851 [cuckoo.core.scheduler] INFO: Task #6721779: acquired machine win7x646 (label=win7x646)
2025-07-16 22:10:40,856 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.206 for task #6721779
2025-07-16 22:10:41,164 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 3005434 (interface=vboxnet0, host=192.168.168.206)
2025-07-16 22:10:41,365 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x646
2025-07-16 22:10:49,086 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x646 to vmcloak
2025-07-16 22:12:01,581 [cuckoo.core.guest] INFO: Starting analysis #6721779 on guest (id=win7x646, ip=192.168.168.206)
2025-07-16 22:12:02,649 [cuckoo.core.guest] DEBUG: win7x646: not ready yet
2025-07-16 22:12:07,674 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x646, ip=192.168.168.206)
2025-07-16 22:12:07,805 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x646, ip=192.168.168.206, monitor=latest, size=6660546)
2025-07-16 22:12:08,899 [cuckoo.core.resultserver] DEBUG: Task #6721779: live log analysis.log initialized.
2025-07-16 22:12:09,908 [cuckoo.core.resultserver] DEBUG: Task #6721779 is sending a BSON stream
2025-07-16 22:12:10,367 [cuckoo.core.resultserver] DEBUG: Task #6721779 is sending a BSON stream
2025-07-16 22:12:10,713 [cuckoo.core.resultserver] DEBUG: Task #6721779 is sending a BSON stream
2025-07-16 22:12:11,192 [cuckoo.core.resultserver] DEBUG: Task #6721779: File upload for 'shots/0001.jpg'
2025-07-16 22:12:11,205 [cuckoo.core.resultserver] DEBUG: Task #6721779 uploaded file length: 133453
2025-07-16 22:12:23,621 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:12:38,737 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:12:53,839 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:13:08,999 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:13:24,242 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:13:39,398 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:13:54,590 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:14:09,794 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:14:25,001 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:14:40,087 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:14:55,174 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:15:10,260 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:15:25,434 [cuckoo.core.guest] DEBUG: win7x646: analysis #6721779 still processing
2025-07-16 22:15:29,392 [cuckoo.core.resultserver] DEBUG: Task #6721779: File upload for 'curtain/1752277909.5.curtain.log'
2025-07-16 22:15:29,398 [cuckoo.core.resultserver] DEBUG: Task #6721779 uploaded file length: 36
2025-07-16 22:15:30,146 [cuckoo.core.resultserver] DEBUG: Task #6721779: File upload for 'sysmon/1752277910.25.sysmon.xml'
2025-07-16 22:15:30,229 [cuckoo.core.resultserver] DEBUG: Task #6721779 uploaded file length: 9649164
2025-07-16 22:15:30,248 [cuckoo.core.resultserver] DEBUG: Task #6721779: File upload for 'files/570e1860972d3942_backup.exe'
2025-07-16 22:15:30,251 [cuckoo.core.resultserver] DEBUG: Task #6721779: File upload for 'files/a3770091ff9b8c05_backup.exe'
2025-07-16 22:15:30,254 [cuckoo.core.resultserver] DEBUG: Task #6721779 uploaded file length: 125718
2025-07-16 22:15:30,256 [cuckoo.core.resultserver] DEBUG: Task #6721779: File upload for 'files/162c2b4524a7f52a_backup.exe'
2025-07-16 22:15:30,260 [cuckoo.core.resultserver] DEBUG: Task #6721779 uploaded file length: 125720
2025-07-16 22:15:30,262 [cuckoo.core.resultserver] DEBUG: Task #6721779 uploaded file length: 125718
2025-07-16 22:15:30,277 [cuckoo.core.resultserver] DEBUG: Task #6721779 had connection reset for <Context for LOG>
2025-07-16 22:15:31,471 [cuckoo.core.guest] INFO: win7x646: analysis completed successfully
2025-07-16 22:15:31,494 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-16 22:15:31,524 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-16 22:15:32,699 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x646 to path /srv/cuckoo/cwd/storage/analyses/6721779/memory.dmp
2025-07-16 22:15:32,700 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x646
2025-07-16 22:17:26,724 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.206 for task #6721779
2025-07-16 22:17:27,118 [cuckoo.core.scheduler] DEBUG: Released database task #6721779
2025-07-16 22:17:27,135 [cuckoo.core.scheduler] INFO: Task #6721779: analysis procedure completed

Signatures

Yara rule detected for file (1 event)
description The packer/protector section names/keywords rule suspicious_packer_section
Creates executable files on the filesystem (5 events)
file C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
file C:\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
Drops an executable to the user AppData folder (1 event)
file C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time) (1 event)
Time & API Arguments Status Return Repeated

NtProtectVirtualMemory

 process_identifier: 2296
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x00360000
process_handle: 0xffffffff
1 0 0
The binary likely contains encrypted or compressed data indicative of a packer (2 events)
section {u'size_of_data': u'0x00003e00', u'virtual_address': u'0x00011000', u'entropy': 7.804677160000422, u'name': u'.pdata', u'virtual_size': u'0x00004000'} entropy 7.80467716 description A section with a high entropy has been found
entropy 0.260504201681 description Overall entropy of this PE file is high
Attempts to modify Explorer settings to prevent file extensions from being displayed (1 event)
registry HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt
Attempts to modify Explorer settings to prevent hidden files from being displayed (1 event)
registry HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Hidden
File has been identified by 13 AntiVirus engine on IRMA as malicious (13 events)
G Data Antivirus (Windows) Virus: Trojan.GenericKD.76484443 (Engine A), Win32.Trojan.Vilsel.B (Engine B)
Avast Core Security (Linux) Win32:Evo-gen [Trj]
C4S ClamAV (Linux) Win.Malware.Genpack-6989317-0
Trellix (Linux) Generic VB.z trojan
WithSecure (Linux) Trojan.TR/Crypt.ULPM.Gen
eScan Antivirus (Linux) Trojan.GenericKD.76484443(DB)
ESET Security (Windows) Win32/VB.OZA trojan
Sophos Anti-Virus (Linux) Troj/VB-LET
DrWeb Antivirus (Linux) Trojan.Copyself.102
ClamAV (Linux) Win.Malware.Genpack-6989317-0
Bitdefender Antivirus (Linux) Trojan.GenericKD.76484443
Kaspersky Standard (Windows) Trojan.Win32.Vilsel.loy
Emsisoft Commandline Scanner (Windows) Trojan.GenericKD.76484443 (B)
Screenshots
Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action VT Location
No hosts contacted.
Cuckoo

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