Summary

c95c82d68dda615f8148809fcab4bd533b5621ecd9ea590afe387d1e89c4786b

File c95c82d68dda615f8148809fcab4bd533b5621ecd9ea590afe387d1e89c4786b

Summary
Download Resubmit sample

Size 88.2KB
Type PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
MD5 9db427ada6aca2bd2499b95e94ae671a
SHA1 50cd8315c07986651d25dbae2f09477fd9fe510c
SHA256 c95c82d68dda615f8148809fcab4bd533b5621ecd9ea590afe387d1e89c4786b
SHA512
20e8411233c953f92904b3ee72ef7eecfbababd14b8e0e066e8efd252967e51624b4cb992688742c6fe105d31046de3fda3949a0ffe7b0a7b8d10511293d0f6c
CRC32 BE8BB538
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

6727561

6727562

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 13, 2025, 7:34 p.m. July 13, 2025, 7:41 p.m. 421 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-09 03:09:38,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpqqrt4a
2025-07-09 03:09:38,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\hEzHDNODuJUrJNSIqM
2025-07-09 03:09:38,030 [analyzer] DEBUG: Log pipe server name: \??\PIPE\HTEcWoJCXTMAFbmMSyhAVsdGEaCya
2025-07-09 03:09:38,342 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-09 03:09:38,342 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-09 03:09:38,875 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-09 03:09:39,078 [analyzer] DEBUG: Loaded monitor into process with pid 504
2025-07-09 03:09:39,078 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-09 03:09:39,078 [analyzer] DEBUG: Started auxiliary module Human
2025-07-09 03:09:39,078 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-09 03:09:39,078 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-09 03:09:39,187 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-09 03:09:39,187 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-09 03:09:39,187 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-09 03:09:39,187 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-09 03:09:39,342 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\c95c82d68dda615f8148809fcab4bd533b5621ecd9ea590afe387d1e89c4786b.exe' with arguments '' and pid 1892
2025-07-09 03:09:39,546 [analyzer] DEBUG: Loaded monitor into process with pid 1892
2025-07-09 03:09:39,655 [analyzer] INFO: Added new file to list with pid 1892 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-09 03:09:39,671 [analyzer] INFO: Added new file to list with pid 1892 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-09 03:09:39,750 [analyzer] INFO: Injected into process with pid 1792 and name ''
2025-07-09 03:09:39,921 [analyzer] DEBUG: Loaded monitor into process with pid 1792
2025-07-09 03:09:40,000 [analyzer] INFO: Added new file to list with pid 1892 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-09 03:09:40,078 [analyzer] INFO: Added new file to list with pid 1892 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-09 03:09:40,983 [analyzer] INFO: Added new file to list with pid 1792 and path C:\backup.exe
2025-07-09 03:10:08,342 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-09 03:10:08,780 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-09 03:10:08,780 [lib.api.process] INFO: Successfully terminated process with pid 1892.
2025-07-09 03:10:08,780 [lib.api.process] INFO: Successfully terminated process with pid 1792.
2025-07-09 03:10:08,796 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-13 19:34:29,160 [cuckoo.core.scheduler] DEBUG: Task #6700427: no machine available yet
2025-07-13 19:34:30,191 [cuckoo.core.scheduler] DEBUG: Task #6700427: no machine available yet
2025-07-13 19:34:31,215 [cuckoo.core.scheduler] DEBUG: Task #6700427: no machine available yet
2025-07-13 19:34:32,256 [cuckoo.core.scheduler] DEBUG: Task #6700427: no machine available yet
2025-07-13 19:34:33,285 [cuckoo.core.scheduler] DEBUG: Task #6700427: no machine available yet
2025-07-13 19:34:34,323 [cuckoo.core.scheduler] INFO: Task #6700427: acquired machine win7x6428 (label=win7x6428)
2025-07-13 19:34:34,324 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.228 for task #6700427
2025-07-13 19:34:34,712 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 40320 (interface=vboxnet0, host=192.168.168.228)
2025-07-13 19:34:34,812 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6428
2025-07-13 19:34:35,664 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6428 to vmcloak
2025-07-13 19:37:32,873 [cuckoo.core.guest] INFO: Starting analysis #6700427 on guest (id=win7x6428, ip=192.168.168.228)
2025-07-13 19:37:33,878 [cuckoo.core.guest] DEBUG: win7x6428: not ready yet
2025-07-13 19:37:38,909 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6428, ip=192.168.168.228)
2025-07-13 19:37:39,021 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6428, ip=192.168.168.228, monitor=latest, size=6660546)
2025-07-13 19:37:40,318 [cuckoo.core.resultserver] DEBUG: Task #6700427: live log analysis.log initialized.
2025-07-13 19:37:41,455 [cuckoo.core.resultserver] DEBUG: Task #6700427 is sending a BSON stream
2025-07-13 19:37:41,856 [cuckoo.core.resultserver] DEBUG: Task #6700427 is sending a BSON stream
2025-07-13 19:37:42,295 [cuckoo.core.resultserver] DEBUG: Task #6700427 is sending a BSON stream
2025-07-13 19:37:42,632 [cuckoo.core.resultserver] DEBUG: Task #6700427: File upload for 'shots/0001.jpg'
2025-07-13 19:37:42,653 [cuckoo.core.resultserver] DEBUG: Task #6700427 uploaded file length: 133441
2025-07-13 19:37:54,940 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6700427 still processing
2025-07-13 19:38:10,067 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6700427 still processing
2025-07-13 19:38:10,889 [cuckoo.core.resultserver] DEBUG: Task #6700427: File upload for 'curtain/1752023408.55.curtain.log'
2025-07-13 19:38:10,892 [cuckoo.core.resultserver] DEBUG: Task #6700427 uploaded file length: 36
2025-07-13 19:38:11,086 [cuckoo.core.resultserver] DEBUG: Task #6700427: File upload for 'sysmon/1752023408.73.sysmon.xml'
2025-07-13 19:38:11,237 [cuckoo.core.resultserver] DEBUG: Task #6700427 uploaded file length: 1783796
2025-07-13 19:38:11,255 [cuckoo.core.resultserver] DEBUG: Task #6700427: File upload for 'files/e358961abc559d88_backup.exe'
2025-07-13 19:38:11,257 [cuckoo.core.resultserver] DEBUG: Task #6700427 uploaded file length: 90370
2025-07-13 19:38:11,259 [cuckoo.core.resultserver] DEBUG: Task #6700427: File upload for 'files/f9c526cf991875f3_backup.exe'
2025-07-13 19:38:11,260 [cuckoo.core.resultserver] DEBUG: Task #6700427 uploaded file length: 90372
2025-07-13 19:38:11,262 [cuckoo.core.resultserver] DEBUG: Task #6700427: File upload for 'files/75e26207a8a1da9d_backup.exe'
2025-07-13 19:38:11,263 [cuckoo.core.resultserver] DEBUG: Task #6700427 uploaded file length: 90370
2025-07-13 19:38:11,669 [cuckoo.core.resultserver] DEBUG: Task #6700427 had connection reset for <Context for LOG>
2025-07-13 19:38:13,082 [cuckoo.core.guest] INFO: win7x6428: analysis completed successfully
2025-07-13 19:38:13,093 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-13 19:38:13,127 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-13 19:38:14,517 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6428 to path /srv/cuckoo/cwd/storage/analyses/6700427/memory.dmp
2025-07-13 19:38:14,518 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6428
2025-07-13 19:41:30,107 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.228 for task #6700427
2025-07-13 19:41:30,565 [cuckoo.core.scheduler] DEBUG: Released database task #6700427
2025-07-13 19:41:30,603 [cuckoo.core.scheduler] INFO: Task #6700427: 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:\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: 1892
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x003a0000
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

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