Summary

0326e3c00f12cf18_backup.exe

File 0326e3c00f12cf18_backup.exe

Summary
Download Resubmit sample

Size 88.2KB
Type PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
MD5 749ed54a2f1ebe5509d761fae54bdddf
SHA1 2d1117bb3056b98150892f22230747127b055659
SHA256 0326e3c00f12cf181c118f07a7d9c87595131e6691a5705cfd4529c456fbf1d3
SHA512
bd99d0e4dc7ee9b76d270ed4fcb5adc586b5a84ec79a7da47707bfc0d1b0fb7476e53c91d14ebec1499edd999be74a92ec69538d63c5fb25b1396237c3271c22
CRC32 E468A8DA
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

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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. 480 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-12 02:01:03,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpk4d6bl
2025-07-12 02:01:03,078 [analyzer] DEBUG: Pipe server name: \??\PIPE\qsOcxOYjQJbuxwYKKFjsPVTn
2025-07-12 02:01:03,078 [analyzer] DEBUG: Log pipe server name: \??\PIPE\fyabyVENUKlricUAKcEuAQJHKRi
2025-07-12 02:01:03,078 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-12 02:01:03,078 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-12 02:01:03,342 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-12 02:01:03,342 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-12 02:01:03,875 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-12 02:01:04,092 [analyzer] DEBUG: Loaded monitor into process with pid 512
2025-07-12 02:01:04,092 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-12 02:01:04,092 [analyzer] DEBUG: Started auxiliary module Human
2025-07-12 02:01:04,108 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-12 02:01:04,108 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-12 02:01:04,155 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-12 02:01:04,155 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-12 02:01:04,155 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-12 02:01:04,155 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-12 02:01:04,296 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\0326e3c00f12cf18_backup.exe' with arguments '' and pid 1032
2025-07-12 02:01:04,515 [analyzer] DEBUG: Loaded monitor into process with pid 1032
2025-07-12 02:01:04,578 [analyzer] INFO: Added new file to list with pid 1032 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-12 02:01:04,592 [analyzer] INFO: Added new file to list with pid 1032 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-12 02:01:04,671 [analyzer] INFO: Injected into process with pid 2352 and name ''
2025-07-12 02:01:04,828 [analyzer] DEBUG: Loaded monitor into process with pid 2352
2025-07-12 02:01:04,890 [analyzer] INFO: Added new file to list with pid 1032 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-12 02:01:04,983 [analyzer] INFO: Added new file to list with pid 1032 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-12 02:01:05,858 [analyzer] INFO: Added new file to list with pid 2352 and path C:\System Restore.exe
2025-07-12 02:04:23,312 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-12 02:04:24,483 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-12 02:04:24,483 [lib.api.process] INFO: Successfully terminated process with pid 1032.
2025-07-12 02:04:24,483 [lib.api.process] INFO: Successfully terminated process with pid 2352.
2025-07-12 02:04:24,515 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-16 22:15:40,169 [cuckoo.core.scheduler] INFO: Task #6721819: acquired machine win7x6422 (label=win7x6422)
2025-07-16 22:15:40,170 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.222 for task #6721819
2025-07-16 22:15:40,528 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 3011671 (interface=vboxnet0, host=192.168.168.222)
2025-07-16 22:15:40,622 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6422
2025-07-16 22:15:41,666 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6422 to vmcloak
2025-07-16 22:17:33,948 [cuckoo.core.guest] INFO: Starting analysis #6721819 on guest (id=win7x6422, ip=192.168.168.222)
2025-07-16 22:17:34,955 [cuckoo.core.guest] DEBUG: win7x6422: not ready yet
2025-07-16 22:17:39,983 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6422, ip=192.168.168.222)
2025-07-16 22:17:40,081 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6422, ip=192.168.168.222, monitor=latest, size=6660546)
2025-07-16 22:17:41,345 [cuckoo.core.resultserver] DEBUG: Task #6721819: live log analysis.log initialized.
2025-07-16 22:17:42,327 [cuckoo.core.resultserver] DEBUG: Task #6721819 is sending a BSON stream
2025-07-16 22:17:42,776 [cuckoo.core.resultserver] DEBUG: Task #6721819 is sending a BSON stream
2025-07-16 22:17:43,115 [cuckoo.core.resultserver] DEBUG: Task #6721819 is sending a BSON stream
2025-07-16 22:17:43,553 [cuckoo.core.resultserver] DEBUG: Task #6721819: File upload for 'shots/0001.jpg'
2025-07-16 22:17:43,579 [cuckoo.core.resultserver] DEBUG: Task #6721819 uploaded file length: 133452
2025-07-16 22:17:55,920 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:18:11,022 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:18:26,101 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:18:41,703 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:18:56,891 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:19:12,121 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:19:27,339 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:19:42,500 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:19:57,673 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:20:12,798 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:20:27,885 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:20:42,982 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:20:58,201 [cuckoo.core.guest] DEBUG: win7x6422: analysis #6721819 still processing
2025-07-16 22:21:01,831 [cuckoo.core.resultserver] DEBUG: Task #6721819: File upload for 'curtain/1752278663.5.curtain.log'
2025-07-16 22:21:01,844 [cuckoo.core.resultserver] DEBUG: Task #6721819 uploaded file length: 36
2025-07-16 22:21:02,672 [cuckoo.core.resultserver] DEBUG: Task #6721819: File upload for 'sysmon/1752278664.38.sysmon.xml'
2025-07-16 22:21:02,783 [cuckoo.core.resultserver] DEBUG: Task #6721819 uploaded file length: 11939322
2025-07-16 22:21:02,809 [cuckoo.core.resultserver] DEBUG: Task #6721819: File upload for 'files/8ede93002ccf9094_backup.exe'
2025-07-16 22:21:02,811 [cuckoo.core.resultserver] DEBUG: Task #6721819: File upload for 'files/41c403f9f7ee7ead_system restore.exe'
2025-07-16 22:21:02,813 [cuckoo.core.resultserver] DEBUG: Task #6721819 uploaded file length: 90296
2025-07-16 22:21:02,817 [cuckoo.core.resultserver] DEBUG: Task #6721819 uploaded file length: 90298
2025-07-16 22:21:02,833 [cuckoo.core.resultserver] DEBUG: Task #6721819 had connection reset for <Context for LOG>
2025-07-16 22:21:04,233 [cuckoo.core.guest] INFO: win7x6422: analysis completed successfully
2025-07-16 22:21:04,246 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-16 22:21:04,270 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-16 22:21:05,410 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6422 to path /srv/cuckoo/cwd/storage/analyses/6721819/memory.dmp
2025-07-16 22:21:05,412 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6422
2025-07-16 22:23:39,598 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.222 for task #6721819
2025-07-16 22:23:40,662 [cuckoo.core.scheduler] DEBUG: Released database task #6721819
2025-07-16 22:23:40,747 [cuckoo.core.scheduler] INFO: Task #6721819: 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\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
file C:\System Restore.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: 1032
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x003b0000
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 13 AntiVirus engine on IRMA as malicious (13 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
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

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