Malware Analysis Report

2025-05-28 18:13

Sample ID 241109-y7v51strfp
Target b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e
SHA256 b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e
Tags
discovery
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e

Threat Level: Shows suspicious behavior

The file b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: RenamesItself

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Modifies registry class

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 20:26

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 20:26

Reported

2024-11-09 20:28

Platform

win7-20241023-en

Max time kernel

150s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe"

Signatures

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WScript.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe

"C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe"

C:\Windows\SysWOW64\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"

Network

N/A

Files

memory/1048-0-0x0000000000400000-0x000000000055F000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs

MD5 048e4b2d89567321ddfdc9e8ce76f557
SHA1 04da8988ef555bbffe6cbfd76ee7a89a9869e672
SHA256 54bee13e47ead35549fe5ccae29ee1aca94a582b040174555f80fb5c5e105813
SHA512 d35314235a90ea63756aecc71375673bf528d256144d0ca6ca5f3e5cbccc2bdb1f1609552ab71ad44208cec13bf1e05c5dbde7d2d410daef88e181fec22b0190

memory/1048-9-0x0000000000400000-0x000000000055F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 20:26

Reported

2024-11-09 20:28

Platform

win10v2004-20241007-en

Max time kernel

140s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WScript.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WScript.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\Local Settings C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe

"C:\Users\Admin\AppData\Local\Temp\b31a3467a70050552aa1d5b24f19b97f3f8c95e2e0dbfe8223bd844a7c2da56e.exe"

C:\Windows\SysWOW64\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"

C:\Windows\SysWOW64\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 99.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/3280-0-0x0000000000400000-0x000000000055F000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs

MD5 9099770c53f4a1d270deb6091734caa5
SHA1 181828c5944babd227f8ad6482bec87d2ad4e5f6
SHA256 908a4f1000c1aabb9b97c92f5105236b4fecda832dc346a5acf8556dc06b0bcc
SHA512 678220226e08848d62a5f14301caa770c58072c43554393d1e67eff8c8105345793732b6181d83b47eecf4454995d9d44df2f588e0e2625d8fe1b8d54869bf27

memory/3280-12-0x0000000000400000-0x000000000055F000-memory.dmp