Summary

7638af64bd647a9c_backup.exe

File 7638af64bd647a9c_backup.exe

Summary
Download Resubmit sample

Size 122.7KB
Type PE32 executable (GUI) Intel 80386, for MS Windows
MD5 3d4f04bd5c840ad7cb449eedeca41ebf
SHA1 0302324e1fe363db42b0ec4612f9c6d075679dc3
SHA256 7638af64bd647a9c2ef115cd54c1feb510835ecc74a881efb080a78325a387f5
SHA512
2977b0a578e1c74582e27d5f663230057f6858c2eb27d57a6fdbb7f284873355bda11ed1cce1b6fb63db6735fe7a9ee10ac7938392cc38f858005de6608e279d
CRC32 01CAA102
ssdeep None
Yara
  • 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:6700426

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 17, 2025, 4:21 p.m. July 17, 2025, 4:30 p.m. 543 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-13 19:42:23,015 [analyzer] DEBUG: Starting analyzer from: C:\tmp564etj
2025-07-13 19:42:23,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\CjUKvXdraogqOudCdgdlG
2025-07-13 19:42:23,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\lbgqjWcrFBdrXUbqvXhgoSBJoV
2025-07-13 19:42:23,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-13 19:42:23,015 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-13 19:42:23,328 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-13 19:42:23,328 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-13 19:42:23,842 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-13 19:42:24,046 [analyzer] DEBUG: Loaded monitor into process with pid 508
2025-07-13 19:42:24,046 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-13 19:42:24,046 [analyzer] DEBUG: Started auxiliary module Human
2025-07-13 19:42:24,046 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-13 19:42:24,046 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-13 19:42:24,108 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-13 19:42:24,108 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-13 19:42:24,108 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-13 19:42:24,108 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-13 19:42:24,265 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\7638af64bd647a9c_backup.exe' with arguments '' and pid 1560
2025-07-13 19:42:24,467 [analyzer] DEBUG: Loaded monitor into process with pid 1560
2025-07-13 19:42:24,562 [analyzer] INFO: Added new file to list with pid 1560 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-13 19:42:24,562 [analyzer] INFO: Added new file to list with pid 1560 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-13 19:42:24,625 [analyzer] INFO: Injected into process with pid 2368 and name ''
2025-07-13 19:42:24,796 [analyzer] DEBUG: Loaded monitor into process with pid 2368
2025-07-13 19:42:24,905 [analyzer] INFO: Added new file to list with pid 1560 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-13 19:42:24,967 [analyzer] INFO: Added new file to list with pid 1560 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-13 19:42:25,875 [analyzer] INFO: Added new file to list with pid 2368 and path C:\backup.exe
2025-07-13 19:45:43,265 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-13 19:45:44,530 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-13 19:45:44,530 [lib.api.process] INFO: Successfully terminated process with pid 1560.
2025-07-13 19:45:44,530 [lib.api.process] INFO: Successfully terminated process with pid 2368.
2025-07-13 19:45:44,546 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-17 16:21:22,867 [cuckoo.core.scheduler] INFO: Task #6727564: acquired machine win7x6419 (label=win7x6419)
2025-07-17 16:21:22,868 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.219 for task #6727564
2025-07-17 16:21:23,509 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 592783 (interface=vboxnet0, host=192.168.168.219)
2025-07-17 16:21:23,632 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6419
2025-07-17 16:21:24,900 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6419 to vmcloak
2025-07-17 16:24:31,323 [cuckoo.core.guest] INFO: Starting analysis #6727564 on guest (id=win7x6419, ip=192.168.168.219)
2025-07-17 16:24:32,330 [cuckoo.core.guest] DEBUG: win7x6419: not ready yet
2025-07-17 16:24:37,549 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6419, ip=192.168.168.219)
2025-07-17 16:24:37,648 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6419, ip=192.168.168.219, monitor=latest, size=6660546)
2025-07-17 16:24:39,301 [cuckoo.core.resultserver] DEBUG: Task #6727564: live log analysis.log initialized.
2025-07-17 16:24:40,264 [cuckoo.core.resultserver] DEBUG: Task #6727564 is sending a BSON stream
2025-07-17 16:24:40,687 [cuckoo.core.resultserver] DEBUG: Task #6727564 is sending a BSON stream
2025-07-17 16:24:40,995 [cuckoo.core.resultserver] DEBUG: Task #6727564 is sending a BSON stream
2025-07-17 16:24:41,480 [cuckoo.core.resultserver] DEBUG: Task #6727564: File upload for 'shots/0001.jpg'
2025-07-17 16:24:41,491 [cuckoo.core.resultserver] DEBUG: Task #6727564 uploaded file length: 133574
2025-07-17 16:24:54,065 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:25:09,359 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:25:24,547 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:25:39,828 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:25:55,325 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:26:11,039 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:26:26,203 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:26:41,480 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:26:56,695 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:27:12,144 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:27:27,596 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:27:42,906 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:27:58,095 [cuckoo.core.guest] DEBUG: win7x6419: analysis #6727564 still processing
2025-07-17 16:27:59,739 [cuckoo.core.resultserver] DEBUG: Task #6727564: File upload for 'curtain/1752428743.45.curtain.log'
2025-07-17 16:27:59,743 [cuckoo.core.resultserver] DEBUG: Task #6727564 uploaded file length: 36
2025-07-17 16:28:00,472 [cuckoo.core.resultserver] DEBUG: Task #6727564: File upload for 'sysmon/1752428744.19.sysmon.xml'
2025-07-17 16:28:00,814 [cuckoo.core.resultserver] DEBUG: Task #6727564 uploaded file length: 10017452
2025-07-17 16:28:00,831 [cuckoo.core.resultserver] DEBUG: Task #6727564: File upload for 'files/a77345e1320c6fb5_backup.exe'
2025-07-17 16:28:00,841 [cuckoo.core.resultserver] DEBUG: Task #6727564: File upload for 'files/20377b6db8c4facc_backup.exe'
2025-07-17 16:28:00,843 [cuckoo.core.resultserver] DEBUG: Task #6727564 uploaded file length: 125682
2025-07-17 16:28:00,847 [cuckoo.core.resultserver] DEBUG: Task #6727564 uploaded file length: 125684
2025-07-17 16:28:00,857 [cuckoo.core.resultserver] DEBUG: Task #6727564 had connection reset for <Context for LOG>
2025-07-17 16:28:01,125 [cuckoo.core.guest] INFO: win7x6419: analysis completed successfully
2025-07-17 16:28:01,139 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-17 16:28:01,165 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-17 16:28:03,039 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6419 to path /srv/cuckoo/cwd/storage/analyses/6727564/memory.dmp
2025-07-17 16:28:03,041 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6419
2025-07-17 16:30:25,750 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.219 for task #6727564
2025-07-17 16:30:26,134 [cuckoo.core.scheduler] DEBUG: Released database task #6727564
2025-07-17 16:30:26,158 [cuckoo.core.scheduler] INFO: Task #6727564: analysis procedure completed

Signatures

Yara rule detected for file (1 event)
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: 1560
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x00700000
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'.pdata', u'virtual_size': u'0x00004000'} entropy 7.80467716 description A section with a high entropy has been found
entropy 0.260504201681 description Overall entropy of this PE file is high
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.GenericKD.76484443 (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.GenericKD.76484443(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.GenericKD.76484443
Emsisoft Commandline Scanner (Windows) Trojan.GenericKD.76484443 (B)
Screenshots
Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action VT Location
No hosts contacted.
Cuckoo

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