Summary

8452036ca45611a556252468a0dfc5b75f164dd21ea3f069c6e95748ea56f4e3

File 8452036ca45611a556252468a0dfc5b75f164dd21ea3f069c6e95748ea56f4e3

Summary
Download Resubmit sample

Size 446.7KB
Type PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed
MD5 f1b368f9ad53713829d5c86d81207fc8
SHA1 866c7e50a0f8d4b1f9f03590e3a8442d27ff5fc8
SHA256 8452036ca45611a556252468a0dfc5b75f164dd21ea3f069c6e95748ea56f4e3
SHA512
976e982241205543954f01855dfb8b14bccad14b6b3a286f8415ef06600f53b3044bc3a66ed17d2ef9c7f4de3ed5b652fe8d7e32b79b10134919cfa6ab360045
CRC32 470CB88C
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

6667544

6667545

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 7, 2025, 3:02 p.m. July 7, 2025, 3:08 p.m. 373 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-07 10:05:35,015 [analyzer] DEBUG: Starting analyzer from: C:\tmptpreht
2025-07-07 10:05:35,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\mioQGxehnhAGAHzUENqibXvX
2025-07-07 10:05:35,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\MLybyMlzMqcHJjetaOwDQ
2025-07-07 10:05:35,437 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-07 10:05:35,437 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-07 10:05:36,000 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-07 10:05:36,203 [analyzer] DEBUG: Loaded monitor into process with pid 500
2025-07-07 10:05:36,203 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-07 10:05:36,203 [analyzer] DEBUG: Started auxiliary module Human
2025-07-07 10:05:36,203 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-07 10:05:36,203 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-07 10:05:36,280 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-07 10:05:36,280 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-07 10:05:36,280 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-07 10:05:36,280 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-07 10:05:36,467 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\8452036ca45611a556252468a0dfc5b75f164dd21ea3f069c6e95748ea56f4e3.exe' with arguments '' and pid 2428
2025-07-07 10:05:36,655 [analyzer] DEBUG: Loaded monitor into process with pid 2428
2025-07-07 10:05:36,717 [analyzer] INFO: Added new file to list with pid 2428 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-07 10:05:36,733 [analyzer] INFO: Added new file to list with pid 2428 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-07 10:05:36,812 [analyzer] INFO: Injected into process with pid 2652 and name ''
2025-07-07 10:05:36,967 [analyzer] DEBUG: Loaded monitor into process with pid 2652
2025-07-07 10:05:37,046 [analyzer] INFO: Added new file to list with pid 2428 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-07 10:05:37,155 [analyzer] INFO: Added new file to list with pid 2428 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-07 10:05:38,015 [analyzer] INFO: Added new file to list with pid 2652 and path C:\backup.exe
2025-07-07 14:05:35,559 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-07 14:05:36,075 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-07 14:05:36,075 [lib.api.process] INFO: Successfully terminated process with pid 2428.
2025-07-07 14:05:36,075 [lib.api.process] INFO: Successfully terminated process with pid 2652.
2025-07-07 14:05:36,121 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-07 15:02:07,841 [cuckoo.core.scheduler] INFO: Task #6660541: acquired machine win7x641 (label=win7x641)
2025-07-07 15:02:07,842 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.201 for task #6660541
2025-07-07 15:02:08,359 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 2202717 (interface=vboxnet0, host=192.168.168.201)
2025-07-07 15:02:08,606 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x641
2025-07-07 15:02:09,444 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x641 to vmcloak
2025-07-07 15:04:57,573 [cuckoo.core.guest] INFO: Starting analysis #6660541 on guest (id=win7x641, ip=192.168.168.201)
2025-07-07 15:04:58,589 [cuckoo.core.guest] DEBUG: win7x641: not ready yet
2025-07-07 15:05:03,614 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x641, ip=192.168.168.201)
2025-07-07 15:05:03,737 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x641, ip=192.168.168.201, monitor=latest, size=6660546)
2025-07-07 15:05:05,069 [cuckoo.core.resultserver] DEBUG: Task #6660541: live log analysis.log initialized.
2025-07-07 15:05:06,226 [cuckoo.core.resultserver] DEBUG: Task #6660541 is sending a BSON stream
2025-07-07 15:05:06,663 [cuckoo.core.resultserver] DEBUG: Task #6660541 is sending a BSON stream
2025-07-07 15:05:06,976 [cuckoo.core.resultserver] DEBUG: Task #6660541 is sending a BSON stream
2025-07-07 15:05:07,486 [cuckoo.core.resultserver] DEBUG: Task #6660541: File upload for 'shots/0001.jpg'
2025-07-07 15:05:07,506 [cuckoo.core.resultserver] DEBUG: Task #6660541 uploaded file length: 133464
2025-07-07 15:05:20,046 [cuckoo.core.guest] DEBUG: win7x641: analysis #6660541 still processing
2025-07-07 15:05:35,160 [cuckoo.core.guest] DEBUG: win7x641: analysis #6660541 still processing
2025-07-07 15:05:35,787 [cuckoo.core.resultserver] DEBUG: Task #6660541: File upload for 'curtain/1751889935.78.curtain.log'
2025-07-07 15:05:35,790 [cuckoo.core.resultserver] DEBUG: Task #6660541 uploaded file length: 36
2025-07-07 15:05:36,030 [cuckoo.core.resultserver] DEBUG: Task #6660541: File upload for 'sysmon/1751889936.03.sysmon.xml'
2025-07-07 15:05:36,069 [cuckoo.core.resultserver] DEBUG: Task #6660541 uploaded file length: 2354302
2025-07-07 15:05:36,082 [cuckoo.core.resultserver] DEBUG: Task #6660541: File upload for 'files/c1095ce02c0b7ddd_backup.exe'
2025-07-07 15:05:36,087 [cuckoo.core.resultserver] DEBUG: Task #6660541 uploaded file length: 457473
2025-07-07 15:05:36,095 [cuckoo.core.resultserver] DEBUG: Task #6660541: File upload for 'files/07fcf32f96aba31f_backup.exe'
2025-07-07 15:05:36,099 [cuckoo.core.resultserver] DEBUG: Task #6660541 uploaded file length: 457475
2025-07-07 15:05:36,105 [cuckoo.core.resultserver] DEBUG: Task #6660541: File upload for 'files/ef908a340a8dde68_backup.exe'
2025-07-07 15:05:36,110 [cuckoo.core.resultserver] DEBUG: Task #6660541 uploaded file length: 457473
2025-07-07 15:05:36,170 [cuckoo.core.resultserver] DEBUG: Task #6660541 had connection reset for <Context for LOG>
2025-07-07 15:05:38,175 [cuckoo.core.guest] INFO: win7x641: analysis completed successfully
2025-07-07 15:05:38,186 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-07 15:05:38,212 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-07 15:05:39,733 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x641 to path /srv/cuckoo/cwd/storage/analyses/6660541/memory.dmp
2025-07-07 15:05:39,740 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x641
2025-07-07 15:08:20,169 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.201 for task #6660541
2025-07-07 15:08:20,836 [cuckoo.core.scheduler] DEBUG: Released database task #6660541
2025-07-07 15:08:20,868 [cuckoo.core.scheduler] INFO: Task #6660541: 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:\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: 2428
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x00370000
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 13 AntiVirus engine on IRMA as malicious (13 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
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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