Summary

276442cb17aaad19_backup.exe

File 276442cb17aaad19_backup.exe

Summary
Download Resubmit sample

Size 88.2KB
Type PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
MD5 afc5fbf24b8e882d3b1a7cc0de9ea401
SHA1 d4209ab8566b7e789cf56d28eb86649f4fa7f7cc
SHA256 276442cb17aaad193be7ed33992d96c0581d833bf7444f234f597f04706db72b
SHA512
9ee4301ab6e217bf279993e29a9fdae709939dd4ff0fc2caa1e474e66b4ba69ed019cfd48f6f81062ec41d50097c2e19741a4481c57b6f694be722c8f0ae5bb7
CRC32 04090CB5
ssdeep None
Yara
  • UPX - (no description)
  • 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:6689214

Feedback

Expecting different results? Send us this analysis and we will inspect it. Click here

Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 16, 2025, 10:15 p.m. July 16, 2025, 10:23 p.m. 456 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-12 02:01:03,000 [analyzer] DEBUG: Starting analyzer from: C:\tmp1xmcit
2025-07-12 02:01:03,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\IujeTvOAuBzoUYOFmz
2025-07-12 02:01:03,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\cQoNpGkiIsKRIUZYaaDCvlsgvqSSuNW
2025-07-12 02:01:03,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-12 02:01:03,015 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-12 02:01:03,265 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-12 02:01:03,265 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-12 02:01:03,733 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-12 02:01:03,937 [analyzer] DEBUG: Loaded monitor into process with pid 508
2025-07-12 02:01:03,937 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-12 02:01:03,937 [analyzer] DEBUG: Started auxiliary module Human
2025-07-12 02:01:03,937 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-12 02:01:03,937 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-12 02:01:04,030 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-12 02:01:04,030 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-12 02:01:04,030 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-12 02:01:04,030 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-12 02:01:04,187 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\276442cb17aaad19_backup.exe' with arguments '' and pid 2932
2025-07-12 02:01:04,375 [analyzer] DEBUG: Loaded monitor into process with pid 2932
2025-07-12 02:01:04,421 [analyzer] INFO: Added new file to list with pid 2932 and path C:\Users\Administrator\AppData\Local\Temp\System Restore.exe
2025-07-12 02:01:04,437 [analyzer] INFO: Added new file to list with pid 2932 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-12 02:01:04,500 [analyzer] INFO: Injected into process with pid 1448 and name ''
2025-07-12 02:01:04,655 [analyzer] DEBUG: Loaded monitor into process with pid 1448
2025-07-12 02:01:04,717 [analyzer] INFO: Added new file to list with pid 2932 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-12 02:01:04,796 [analyzer] INFO: Added new file to list with pid 2932 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-12 02:01:05,687 [analyzer] INFO: Added new file to list with pid 1448 and path C:\backup.exe
2025-07-12 02:04:23,203 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-12 02:04:24,437 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-12 02:04:24,437 [lib.api.process] INFO: Successfully terminated process with pid 2932.
2025-07-12 02:04:24,437 [lib.api.process] INFO: Successfully terminated process with pid 1448.
2025-07-12 02:04:24,453 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-16 22:15:29,182 [cuckoo.core.scheduler] INFO: Task #6721818: acquired machine win7x6414 (label=win7x6414)
2025-07-16 22:15:29,183 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.214 for task #6721818
2025-07-16 22:15:29,520 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 3011434 (interface=vboxnet0, host=192.168.168.214)
2025-07-16 22:15:29,606 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6414
2025-07-16 22:15:30,634 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6414 to vmcloak
2025-07-16 22:17:20,275 [cuckoo.core.guest] INFO: Starting analysis #6721818 on guest (id=win7x6414, ip=192.168.168.214)
2025-07-16 22:17:21,281 [cuckoo.core.guest] DEBUG: win7x6414: not ready yet
2025-07-16 22:17:26,328 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6414, ip=192.168.168.214)
2025-07-16 22:17:26,440 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6414, ip=192.168.168.214, monitor=latest, size=6660546)
2025-07-16 22:17:27,738 [cuckoo.core.resultserver] DEBUG: Task #6721818: live log analysis.log initialized.
2025-07-16 22:17:28,604 [cuckoo.core.resultserver] DEBUG: Task #6721818 is sending a BSON stream
2025-07-16 22:17:29,148 [cuckoo.core.resultserver] DEBUG: Task #6721818 is sending a BSON stream
2025-07-16 22:17:29,344 [cuckoo.core.resultserver] DEBUG: Task #6721818 is sending a BSON stream
2025-07-16 22:17:29,837 [cuckoo.core.resultserver] DEBUG: Task #6721818: File upload for 'shots/0001.jpg'
2025-07-16 22:17:29,853 [cuckoo.core.resultserver] DEBUG: Task #6721818 uploaded file length: 133456
2025-07-16 22:17:42,481 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:17:57,713 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:18:12,804 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:18:27,936 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:18:43,102 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:18:58,193 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:19:13,462 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:19:28,581 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:19:43,675 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:19:58,782 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:20:13,881 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:20:28,972 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:20:44,057 [cuckoo.core.guest] DEBUG: win7x6414: analysis #6721818 still processing
2025-07-16 22:20:48,107 [cuckoo.core.resultserver] DEBUG: Task #6721818: File upload for 'curtain/1752278663.39.curtain.log'
2025-07-16 22:20:48,110 [cuckoo.core.resultserver] DEBUG: Task #6721818 uploaded file length: 36
2025-07-16 22:20:49,004 [cuckoo.core.resultserver] DEBUG: Task #6721818: File upload for 'sysmon/1752278664.3.sysmon.xml'
2025-07-16 22:20:49,143 [cuckoo.core.resultserver] DEBUG: Task #6721818 uploaded file length: 12299370
2025-07-16 22:20:49,164 [cuckoo.core.resultserver] DEBUG: Task #6721818: File upload for 'files/7493946b7888ed5d_system restore.exe'
2025-07-16 22:20:49,167 [cuckoo.core.resultserver] DEBUG: Task #6721818: File upload for 'files/249b4d7de69e7817_backup.exe'
2025-07-16 22:20:49,169 [cuckoo.core.resultserver] DEBUG: Task #6721818 uploaded file length: 90294
2025-07-16 22:20:49,173 [cuckoo.core.resultserver] DEBUG: Task #6721818 uploaded file length: 90296
2025-07-16 22:20:49,189 [cuckoo.core.resultserver] DEBUG: Task #6721818 had connection reset for <Context for LOG>
2025-07-16 22:20:50,095 [cuckoo.core.guest] INFO: win7x6414: analysis completed successfully
2025-07-16 22:20:50,110 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-16 22:20:50,153 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-16 22:20:51,105 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6414 to path /srv/cuckoo/cwd/storage/analyses/6721818/memory.dmp
2025-07-16 22:20:51,107 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6414
2025-07-16 22:23:04,335 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.214 for task #6721818
2025-07-16 22:23:04,835 [cuckoo.core.scheduler] DEBUG: Released database task #6721818
2025-07-16 22:23:04,867 [cuckoo.core.scheduler] INFO: Task #6721818: analysis procedure completed

Signatures

Yara rules detected for file (2 events)
description (no description) rule UPX
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\System Restore.exe
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\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\System Restore.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: 2932
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x004c0000
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'UPX1', u'virtual_size': u'0x00004000'} entropy 7.80467716 description A section with a high entropy has been found
entropy 0.392405063291 description Overall entropy of this PE file is high
The executable is compressed using UPX (2 events)
section UPX0 description Section name indicates UPX
section UPX1 description Section name indicates UPX
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 14 AntiVirus engine on IRMA as malicious (14 events)
G Data Antivirus (Windows) Virus: Trojan.Generic.4385790 (Engine A), Win32.Trojan.Vilsel.B (Engine B)
Avast Core Security (Linux) Win32:Evo-gen [Trj]
C4S ClamAV (Linux) Win.Malware.Genpack-6989317-0
Trend Micro SProtect (Linux) WORM_VILSEL.SMB
Trellix (Linux) Generic VB.z trojan
WithSecure (Linux) Trojan.TR/Crypt.ULPM.Gen
eScan Antivirus (Linux) Trojan.Generic.4385790(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.Generic.4385790
Kaspersky Standard (Windows) Trojan.Win32.Vilsel.loy
Emsisoft Commandline Scanner (Windows) Trojan.Generic.4385790 (B)
Screenshots
Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action VT Location
No hosts contacted.
Cuckoo

We're processing your submission... This could take a few seconds.