Malware Analysis Report

2024-11-16 12:51

Sample ID 240809-zamm2sxgkn
Target file01.vbs
SHA256 b0eb2c45c2364adb75ecaa3bb74a75fa305b18408e92cd97fbb5b8bfb1400ec0
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

b0eb2c45c2364adb75ecaa3bb74a75fa305b18408e92cd97fbb5b8bfb1400ec0

Threat Level: Likely malicious

The file file01.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

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-09 20:30

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-09 20:30

Reported

2024-08-09 20:31

Platform

win7-20240708-en

Max time kernel

31s

Max time network

39s

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\icacls.exe N/A
N/A N/A C:\Windows\system32\takeown.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 2172 wrote to memory of 3056 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 2172 wrote to memory of 3056 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 2172 wrote to memory of 3056 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 3056 wrote to memory of 2088 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 3056 wrote to memory of 2088 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 3056 wrote to memory of 2088 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 3056 wrote to memory of 1964 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 3056 wrote to memory of 1964 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 3056 wrote to memory of 1964 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\drivers && icacls C:\Windows\System32\drivers /grant Everyone:(F) && exit

C:\Windows\system32\takeown.exe

takeown /f C:\Windows\System32\drivers

C:\Windows\system32\icacls.exe

icacls C:\Windows\System32\drivers /grant Everyone:(F)

C:\Windows\explorer.exe

"C:\Windows\explorer.exe"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-09 20:30

Reported

2024-08-09 20:31

Platform

win10v2004-20240802-en

Max time kernel

35s

Max time network

36s

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-1-5-21-523280732-2327480845-3730041215-1000\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 WriteProcessMemory

Description Indicator Process Target
PID 1604 wrote to memory of 4392 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 1604 wrote to memory of 4392 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 4392 wrote to memory of 5040 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 4392 wrote to memory of 5040 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 4392 wrote to memory of 440 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 4392 wrote to memory of 440 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\drivers && icacls C:\Windows\System32\drivers /grant Everyone:(F) && exit

C:\Windows\system32\takeown.exe

takeown /f C:\Windows\System32\drivers

C:\Windows\system32\icacls.exe

icacls C:\Windows\System32\drivers /grant Everyone:(F)

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp

Files

N/A