Malware Analysis Report

2024-12-07 16:13

Sample ID 241113-lm7xvszcnn
Target b087e1309f3eab6302d7503079af1ad6af06d70a932f7a6ae1421b942048e28a.ps1
SHA256 b087e1309f3eab6302d7503079af1ad6af06d70a932f7a6ae1421b942048e28a
Tags
execution persistence
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

b087e1309f3eab6302d7503079af1ad6af06d70a932f7a6ae1421b942048e28a

Threat Level: Likely malicious

The file b087e1309f3eab6302d7503079af1ad6af06d70a932f7a6ae1421b942048e28a.ps1 was found to be: Likely malicious.

Malicious Activity Summary

execution persistence

Blocklisted process makes network request

Adds Run key to start application

Command and Scripting Interpreter: PowerShell

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 09:40

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 09:40

Reported

2024-11-13 09:42

Platform

win7-20240903-en

Max time kernel

130s

Max time network

140s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\b087e1309f3eab6302d7503079af1ad6af06d70a932f7a6ae1421b942048e28a.ps1

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\powershell = "Powershell.exe -windowstyle hidden -ExecutionPolicy Bypass -File \"C:\\Users\\Admin\\AppData\\Local\\Temp\\b087e1309f3eab6302d7503079af1ad6af06d70a932f7a6ae1421b942048e28a.ps1\"" C:\Windows\System32\WindowsPowerShell\v1.0\powershell.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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
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\b087e1309f3eab6302d7503079af1ad6af06d70a932f7a6ae1421b942048e28a.ps1

Network

Country Destination Domain Proto
GB 85.239.61.60:443 tcp
GB 85.239.61.60:443 tcp
GB 85.239.61.60:443 tcp
GB 85.239.61.60:443 tcp
GB 85.239.61.60:443 tcp
GB 85.239.61.60:443 tcp
GB 85.239.61.60:443 tcp

Files

memory/2400-4-0x000007FEF664E000-0x000007FEF664F000-memory.dmp

memory/2400-7-0x000007FEF6390000-0x000007FEF6D2D000-memory.dmp

memory/2400-6-0x0000000002810000-0x0000000002818000-memory.dmp

memory/2400-5-0x000000001B620000-0x000000001B902000-memory.dmp

memory/2400-8-0x000007FEF6390000-0x000007FEF6D2D000-memory.dmp

memory/2400-9-0x000007FEF6390000-0x000007FEF6D2D000-memory.dmp

memory/2400-10-0x000007FEF6390000-0x000007FEF6D2D000-memory.dmp

memory/2400-11-0x000007FEF6390000-0x000007FEF6D2D000-memory.dmp

memory/2400-12-0x000007FEF6390000-0x000007FEF6D2D000-memory.dmp

memory/2400-13-0x000007FEF6390000-0x000007FEF6D2D000-memory.dmp

memory/2400-14-0x000007FEF664E000-0x000007FEF664F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 09:40

Reported

2024-11-13 09:42

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

151s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\b087e1309f3eab6302d7503079af1ad6af06d70a932f7a6ae1421b942048e28a.ps1

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\powershell = "Powershell.exe -windowstyle hidden -ExecutionPolicy Bypass -File \"C:\\Users\\Admin\\AppData\\Local\\Temp\\b087e1309f3eab6302d7503079af1ad6af06d70a932f7a6ae1421b942048e28a.ps1\"" C:\Windows\System32\WindowsPowerShell\v1.0\powershell.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

Processes

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

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\b087e1309f3eab6302d7503079af1ad6af06d70a932f7a6ae1421b942048e28a.ps1

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
GB 85.239.61.60:443 tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
GB 85.239.61.60:443 tcp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 107.209.201.84.in-addr.arpa udp
GB 85.239.61.60:443 tcp
US 8.8.8.8:53 69.209.201.84.in-addr.arpa udp
GB 85.239.61.60:443 tcp
GB 85.239.61.60:443 tcp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
GB 85.239.61.60:443 tcp
GB 85.239.61.60:443 tcp
GB 85.239.61.60:443 tcp

Files

memory/1360-0-0x00007FF91EC93000-0x00007FF91EC95000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t301ltnm.nzy.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1360-10-0x0000021335610000-0x0000021335632000-memory.dmp

memory/1360-11-0x00007FF91EC90000-0x00007FF91F751000-memory.dmp

memory/1360-12-0x00007FF91EC90000-0x00007FF91F751000-memory.dmp

memory/1360-13-0x00007FF91EC90000-0x00007FF91F751000-memory.dmp

memory/1360-14-0x00007FF91EC90000-0x00007FF91F751000-memory.dmp

memory/1360-15-0x00007FF91EC93000-0x00007FF91EC95000-memory.dmp

memory/1360-16-0x00007FF91EC90000-0x00007FF91F751000-memory.dmp

memory/1360-17-0x000002134FB50000-0x000002134FD6C000-memory.dmp

memory/1360-18-0x00007FF91EC90000-0x00007FF91F751000-memory.dmp