Malware Analysis Report

2024-11-16 12:49

Sample ID 240809-zb8xnsxgnj
Target code.vbs
SHA256 584fcb5621bb20e329ad2b33d2318cade8390939c94d37acd8fa12e105f47c3f
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

584fcb5621bb20e329ad2b33d2318cade8390939c94d37acd8fa12e105f47c3f

Threat Level: Likely malicious

The file code.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 20:33

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-09 20:33

Reported

2024-08-09 20:36

Platform

win7-20240708-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\code.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 2632 wrote to memory of 2460 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 2632 wrote to memory of 2460 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 2632 wrote to memory of 2460 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 2460 wrote to memory of 2520 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 2460 wrote to memory of 2520 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 2460 wrote to memory of 2520 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 2460 wrote to memory of 2464 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 2460 wrote to memory of 2464 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 2460 wrote to memory of 2464 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\code.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

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-09 20:33

Reported

2024-08-09 20:36

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

150s

Command Line

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

Description Indicator Process Target
PID 3464 wrote to memory of 4656 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 3464 wrote to memory of 4656 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\cmd.exe
PID 4656 wrote to memory of 400 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 4656 wrote to memory of 400 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\takeown.exe
PID 4656 wrote to memory of 3028 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\icacls.exe
PID 4656 wrote to memory of 3028 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\code.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 8.8.8.8:53 217.106.137.52.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 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 100.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

N/A