Summary

c1095ce02c0b7ddd_backup.exe

File c1095ce02c0b7ddd_backup.exe

Summary
Download Resubmit sample

Size 446.8KB
Type PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed
MD5 463d54d98607d3949307a26133c43a26
SHA1 fd477d9fc357b36ab53af84032d46e79ec47c35f
SHA256 c1095ce02c0b7dddfaaceeb7ec83c63644a6cddf2603d9e826a5f65a386025c4
SHA512
913a0d90722ee0da7b9076d3b6ee89ef6e22c16cf34f727bd7a7c5879155ce71349939ebadfc4f7ed0eb4e52954d62ab4b999f327b2454e07953a80e8f8b9cb8
CRC32 2F565DDB
ssdeep None
Yara
  • UPX - (no description)
  • suspicious_packer_section - The packer/protector section names/keywords
  • SEH__vba - (no description)
  • escalate_priv - Escalade priviledges
  • win_mutex - Create or check mutex
  • win_registry - Affect system registries
  • win_token - Affect system token

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:6660541

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 8, 2025, 4:30 p.m. July 8, 2025, 4:38 p.m. 426 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-07 15:09:03,015 [analyzer] DEBUG: Starting analyzer from: C:\tmppw5mq4
2025-07-07 15:09:03,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\VfSBkdgCdROfqlIBP
2025-07-07 15:09:03,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\KKXMtydPBWBKNbSduCyxAGlkVbKJtjSO
2025-07-07 15:09:03,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-07 15:09:03,030 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-07 15:09:03,280 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-07 15:09:03,280 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-07 15:09:03,733 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-07 15:09:03,937 [analyzer] DEBUG: Loaded monitor into process with pid 504
2025-07-07 15:09:03,937 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-07 15:09:03,937 [analyzer] DEBUG: Started auxiliary module Human
2025-07-07 15:09:03,937 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-07 15:09:03,937 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-07 15:09:04,000 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-07 15:09:04,015 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-07 15:09:04,015 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-07 15:09:04,015 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-07 15:09:04,140 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\c1095ce02c0b7ddd_backup.exe' with arguments '' and pid 1848
2025-07-07 15:09:04,328 [analyzer] DEBUG: Loaded monitor into process with pid 1848
2025-07-07 15:09:04,375 [analyzer] INFO: Added new file to list with pid 1848 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-07 15:09:04,390 [analyzer] INFO: Added new file to list with pid 1848 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\data.exe
2025-07-07 15:09:04,467 [analyzer] INFO: Injected into process with pid 1764 and name ''
2025-07-07 15:09:04,625 [analyzer] DEBUG: Loaded monitor into process with pid 1764
2025-07-07 15:09:04,687 [analyzer] INFO: Added new file to list with pid 1848 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-07 15:09:04,765 [analyzer] INFO: Added new file to list with pid 1848 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-07 15:09:05,655 [analyzer] INFO: Added new file to list with pid 1764 and path C:\data.exe
2025-07-07 15:12:23,140 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-07 15:12:24,405 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-07 15:12:24,405 [lib.api.process] INFO: Successfully terminated process with pid 1848.
2025-07-07 15:12:24,421 [lib.api.process] INFO: Successfully terminated process with pid 1764.
2025-07-07 15:12:24,453 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-08 16:30:53,312 [cuckoo.core.scheduler] INFO: Task #6667544: acquired machine win7x646 (label=win7x646)
2025-07-08 16:30:53,313 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.206 for task #6667544
2025-07-08 16:30:53,582 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 524861 (interface=vboxnet0, host=192.168.168.206)
2025-07-08 16:30:53,952 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x646
2025-07-08 16:30:54,567 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x646 to vmcloak
2025-07-08 16:32:37,233 [cuckoo.core.guest] INFO: Starting analysis #6667544 on guest (id=win7x646, ip=192.168.168.206)
2025-07-08 16:32:38,238 [cuckoo.core.guest] DEBUG: win7x646: not ready yet
2025-07-08 16:32:43,264 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x646, ip=192.168.168.206)
2025-07-08 16:32:43,322 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x646, ip=192.168.168.206, monitor=latest, size=6660546)
2025-07-08 16:32:44,492 [cuckoo.core.resultserver] DEBUG: Task #6667544: live log analysis.log initialized.
2025-07-08 16:32:45,377 [cuckoo.core.resultserver] DEBUG: Task #6667544 is sending a BSON stream
2025-07-08 16:32:45,752 [cuckoo.core.resultserver] DEBUG: Task #6667544 is sending a BSON stream
2025-07-08 16:32:46,048 [cuckoo.core.resultserver] DEBUG: Task #6667544 is sending a BSON stream
2025-07-08 16:32:46,611 [cuckoo.core.resultserver] DEBUG: Task #6667544: File upload for 'shots/0001.jpg'
2025-07-08 16:32:46,628 [cuckoo.core.resultserver] DEBUG: Task #6667544 uploaded file length: 133436
2025-07-08 16:32:59,243 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:33:14,326 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:33:29,436 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:33:44,595 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:33:59,716 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:34:14,821 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:34:29,970 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:34:45,111 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:35:00,331 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:35:15,455 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:35:30,540 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:35:45,766 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:36:00,969 [cuckoo.core.guest] DEBUG: win7x646: analysis #6667544 still processing
2025-07-08 16:36:04,875 [cuckoo.core.resultserver] DEBUG: Task #6667544: File upload for 'curtain/1751893943.36.curtain.log'
2025-07-08 16:36:04,895 [cuckoo.core.resultserver] DEBUG: Task #6667544 uploaded file length: 36
2025-07-08 16:36:05,761 [cuckoo.core.resultserver] DEBUG: Task #6667544: File upload for 'sysmon/1751893944.25.sysmon.xml'
2025-07-08 16:36:05,920 [cuckoo.core.resultserver] DEBUG: Task #6667544 uploaded file length: 11839366
2025-07-08 16:36:05,942 [cuckoo.core.resultserver] DEBUG: Task #6667544: File upload for 'files/53a68dd36771d999_backup.exe'
2025-07-08 16:36:05,964 [cuckoo.core.resultserver] DEBUG: Task #6667544: File upload for 'files/be54bb2a4a8e1671_data.exe'
2025-07-08 16:36:05,974 [cuckoo.core.resultserver] DEBUG: Task #6667544 uploaded file length: 457477
2025-07-08 16:36:05,978 [cuckoo.core.resultserver] DEBUG: Task #6667544 uploaded file length: 457475
2025-07-08 16:36:05,985 [cuckoo.core.resultserver] DEBUG: Task #6667544 had connection reset for <Context for LOG>
2025-07-08 16:36:07,000 [cuckoo.core.guest] INFO: win7x646: analysis completed successfully
2025-07-08 16:36:07,029 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-08 16:36:07,064 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-08 16:36:08,098 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x646 to path /srv/cuckoo/cwd/storage/analyses/6667544/memory.dmp
2025-07-08 16:36:08,099 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x646
2025-07-08 16:37:59,532 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.206 for task #6667544
2025-07-08 16:38:00,027 [cuckoo.core.scheduler] DEBUG: Released database task #6667544
2025-07-08 16:38:00,054 [cuckoo.core.scheduler] INFO: Task #6667544: analysis procedure completed

Signatures

Yara rules detected for file (7 events)
description (no description) rule UPX
description The packer/protector section names/keywords rule suspicious_packer_section
description (no description) rule SEH__vba
description Escalade priviledges rule escalate_priv
description Create or check mutex rule win_mutex
description Affect system registries rule win_registry
description Affect system token rule win_token
The executable contains unknown PE section names indicative of a packer (could be a false positive) (1 event)
section .imports
Creates executable files on the filesystem (5 events)
file C:\data.exe
file C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\data.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\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\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: 1848
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x01c30000
process_handle: 0xffffffff
1 0 0
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.A (Engine B)
Avast Core Security (Linux) Win32:Vilsel-CT [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/ATRAPS.Gen2
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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