Summary

98095e12419a5484_backup.exe

File 98095e12419a5484_backup.exe

Summary
Download Resubmit sample

Size 88.2KB
Type PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
MD5 76513c9182cbdb0fb7ab4142cc69c1da
SHA1 c36283a34cad8db54b5697218699e6ca225c2f60
SHA256 98095e12419a5484f8a9c6648c82ba939ddafdac0c86b98b8ef9c4c9171bda26
SHA512
82e0e7b43dd1a3e9ab2c3579703b22b478fb3798ae612481c344c1553c27f887a7956c5ee289a036a27bf4813124fb2b27606992c2722317318929cbc2ff8964
CRC32 38209561
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:6705115

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 18, 2025, 3:30 p.m. July 18, 2025, 3:40 p.m. 561 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-14 13:13:18,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpd0os1j
2025-07-14 13:13:18,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\xQSSuwgzpSJtSoyStefOhaZuVlK
2025-07-14 13:13:18,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\wurnQRtlNkrlRSRJtumvXfAdrVnF
2025-07-14 13:13:18,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-14 13:13:18,030 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-14 13:13:18,342 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-14 13:13:18,342 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-14 13:13:18,796 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-14 13:13:18,983 [analyzer] DEBUG: Loaded monitor into process with pid 512
2025-07-14 13:13:18,983 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-14 13:13:18,983 [analyzer] DEBUG: Started auxiliary module Human
2025-07-14 13:13:18,983 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-14 13:13:18,983 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-14 13:13:19,062 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-14 13:13:19,062 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-14 13:13:19,062 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-14 13:13:19,062 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-14 13:13:19,233 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\98095e12419a5484_backup.exe' with arguments '' and pid 3040
2025-07-14 13:13:19,437 [analyzer] DEBUG: Loaded monitor into process with pid 3040
2025-07-14 13:13:19,483 [analyzer] INFO: Added new file to list with pid 3040 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-14 13:13:19,515 [analyzer] INFO: Added new file to list with pid 3040 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-14 13:13:19,640 [analyzer] INFO: Injected into process with pid 2444 and name ''
2025-07-14 13:13:19,780 [analyzer] DEBUG: Loaded monitor into process with pid 2444
2025-07-14 13:13:19,842 [analyzer] INFO: Added new file to list with pid 3040 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-14 13:13:19,921 [analyzer] INFO: Added new file to list with pid 3040 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-14 13:13:20,812 [analyzer] INFO: Added new file to list with pid 2444 and path C:\backup.exe
2025-07-14 13:16:38,233 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-14 13:16:39,437 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-14 13:16:39,437 [lib.api.process] INFO: Successfully terminated process with pid 3040.
2025-07-14 13:16:39,437 [lib.api.process] INFO: Successfully terminated process with pid 2444.
2025-07-14 13:16:39,453 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-18 15:30:45,025 [cuckoo.core.scheduler] INFO: Task #6732399: acquired machine win7x6429 (label=win7x6429)
2025-07-18 15:30:45,025 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.229 for task #6732399
2025-07-18 15:30:45,397 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 2771357 (interface=vboxnet0, host=192.168.168.229)
2025-07-18 15:30:45,515 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6429
2025-07-18 15:30:46,687 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6429 to vmcloak
2025-07-18 15:34:03,046 [cuckoo.core.guest] INFO: Starting analysis #6732399 on guest (id=win7x6429, ip=192.168.168.229)
2025-07-18 15:34:04,051 [cuckoo.core.guest] DEBUG: win7x6429: not ready yet
2025-07-18 15:34:09,070 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6429, ip=192.168.168.229)
2025-07-18 15:34:09,162 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6429, ip=192.168.168.229, monitor=latest, size=6660546)
2025-07-18 15:34:10,397 [cuckoo.core.resultserver] DEBUG: Task #6732399: live log analysis.log initialized.
2025-07-18 15:34:11,327 [cuckoo.core.resultserver] DEBUG: Task #6732399 is sending a BSON stream
2025-07-18 15:34:11,762 [cuckoo.core.resultserver] DEBUG: Task #6732399 is sending a BSON stream
2025-07-18 15:34:12,121 [cuckoo.core.resultserver] DEBUG: Task #6732399 is sending a BSON stream
2025-07-18 15:34:12,582 [cuckoo.core.resultserver] DEBUG: Task #6732399: File upload for 'shots/0001.jpg'
2025-07-18 15:34:12,608 [cuckoo.core.resultserver] DEBUG: Task #6732399 uploaded file length: 133361
2025-07-18 15:34:25,095 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:34:40,285 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:34:55,631 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:35:10,888 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:35:26,211 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:35:41,344 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:35:56,776 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:36:11,957 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:36:27,100 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:36:42,235 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:36:57,352 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:37:12,476 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:37:27,554 [cuckoo.core.guest] DEBUG: win7x6429: analysis #6732399 still processing
2025-07-18 15:37:31,326 [cuckoo.core.resultserver] DEBUG: Task #6732399: File upload for 'curtain/1752491798.41.curtain.log'
2025-07-18 15:37:31,354 [cuckoo.core.resultserver] DEBUG: Task #6732399 uploaded file length: 36
2025-07-18 15:37:31,442 [cuckoo.core.resultserver] DEBUG: Task #6732399: File upload for 'sysmon/1752491799.0.sysmon.xml'
2025-07-18 15:37:31,909 [cuckoo.core.resultserver] DEBUG: Task #6732399 uploaded file length: 9305270
2025-07-18 15:37:31,947 [cuckoo.core.resultserver] DEBUG: Task #6732399: File upload for 'files/85a4813f4e6a43a0_backup.exe'
2025-07-18 15:37:31,954 [cuckoo.core.resultserver] DEBUG: Task #6732399: File upload for 'files/94c16221e1de6dd3_backup.exe'
2025-07-18 15:37:31,955 [cuckoo.core.resultserver] DEBUG: Task #6732399 uploaded file length: 90304
2025-07-18 15:37:31,960 [cuckoo.core.resultserver] DEBUG: Task #6732399 uploaded file length: 90302
2025-07-18 15:37:31,974 [cuckoo.core.resultserver] DEBUG: Task #6732399 had connection reset for <Context for LOG>
2025-07-18 15:37:33,650 [cuckoo.core.guest] INFO: win7x6429: analysis completed successfully
2025-07-18 15:37:33,671 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-18 15:37:33,702 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-18 15:37:35,289 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6429 to path /srv/cuckoo/cwd/storage/analyses/6732399/memory.dmp
2025-07-18 15:37:35,291 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6429
2025-07-18 15:40:05,932 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.229 for task #6732399
2025-07-18 15:40:06,349 [cuckoo.core.scheduler] DEBUG: Released database task #6732399
2025-07-18 15:40:06,388 [cuckoo.core.scheduler] INFO: Task #6732399: 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: 3040
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x003f0000
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 12 AntiVirus engine on IRMA as malicious (12 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
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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