Malware Analysis Report

2025-06-16 06:54

Sample ID 241104-da1n1s1jhw
Target b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll
SHA256 b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347
Tags
discovery evasion execution trojan
score
10/10

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
10/10

SHA256

b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347

Threat Level: Known bad

The file b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll was found to be: Known bad.

Malicious Activity Summary

discovery evasion execution trojan

Modifies Windows Defender notification settings

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-04 02:49

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-04 02:49

Reported

2024-11-04 02:51

Platform

win7-20240903-en

Max time kernel

119s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll,#1

Signatures

Modifies Windows Defender notification settings

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1" C:\Windows\SysWOW64\rundll32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender Security Center\Notifications\DisableEnhancedNotifications = "1" C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows Defender Security Center\Notifications C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender Security Center\Notifications C:\Windows\SysWOW64\rundll32.exe N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2896 wrote to memory of 2328 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2896 wrote to memory of 2328 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2896 wrote to memory of 2328 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2896 wrote to memory of 2328 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2896 wrote to memory of 2328 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2896 wrote to memory of 2328 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2896 wrote to memory of 2328 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2328 wrote to memory of 2340 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2328 wrote to memory of 2340 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2328 wrote to memory of 2340 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2328 wrote to memory of 2340 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2328 wrote to memory of 2332 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe
PID 2328 wrote to memory of 2332 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe
PID 2328 wrote to memory of 2332 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe
PID 2328 wrote to memory of 2332 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll,#1

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath $ENV:TEMP

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2328 -s 244

Network

N/A

Files

memory/2340-2-0x0000000073A11000-0x0000000073A12000-memory.dmp

memory/2340-3-0x0000000073A10000-0x0000000073FBB000-memory.dmp

memory/2340-4-0x0000000073A10000-0x0000000073FBB000-memory.dmp

memory/2340-5-0x0000000073A10000-0x0000000073FBB000-memory.dmp

memory/2340-6-0x0000000073A10000-0x0000000073FBB000-memory.dmp

memory/2328-7-0x0000000075220000-0x00000000752A9000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-04 02:49

Reported

2024-11-04 02:52

Platform

win10v2004-20241007-en

Max time kernel

140s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll,#1

Signatures

Modifies Windows Defender notification settings

evasion trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender Security Center\Notifications C:\Windows\SysWOW64\rundll32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1" C:\Windows\SysWOW64\rundll32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender Security Center\Notifications\DisableEnhancedNotifications = "1" C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows Defender Security Center\Notifications C:\Windows\SysWOW64\rundll32.exe N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation C:\Windows\SysWOW64\rundll32.exe N/A

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll,#1

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath $ENV:TEMP

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 760 -ip 760

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 1008

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.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
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 45.19.74.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 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
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/1780-0-0x0000000072D4E000-0x0000000072D4F000-memory.dmp

memory/1780-1-0x0000000002970000-0x00000000029A6000-memory.dmp

memory/1780-2-0x0000000072D40000-0x00000000734F0000-memory.dmp

memory/1780-3-0x0000000005230000-0x0000000005858000-memory.dmp

memory/1780-4-0x0000000005090000-0x00000000050B2000-memory.dmp

memory/1780-5-0x0000000005130000-0x0000000005196000-memory.dmp

memory/1780-6-0x00000000058E0000-0x0000000005946000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gl30s42c.ruz.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1780-16-0x0000000005950000-0x0000000005CA4000-memory.dmp

memory/760-17-0x0000000074E90000-0x0000000074F19000-memory.dmp

memory/1780-18-0x0000000005F40000-0x0000000005F5E000-memory.dmp

memory/1780-19-0x0000000005F80000-0x0000000005FCC000-memory.dmp

memory/1780-20-0x0000000006F40000-0x0000000006F72000-memory.dmp

memory/1780-22-0x0000000072D40000-0x00000000734F0000-memory.dmp

memory/1780-32-0x0000000006510000-0x000000000652E000-memory.dmp

memory/1780-21-0x0000000075180000-0x00000000751CC000-memory.dmp

memory/1780-33-0x0000000072D40000-0x00000000734F0000-memory.dmp

memory/1780-34-0x0000000006F80000-0x0000000007023000-memory.dmp

memory/1780-36-0x00000000078B0000-0x0000000007F2A000-memory.dmp

memory/1780-35-0x0000000072D40000-0x00000000734F0000-memory.dmp

memory/1780-37-0x0000000007270000-0x000000000728A000-memory.dmp

memory/1780-38-0x00000000072F0000-0x00000000072FA000-memory.dmp

memory/1780-39-0x00000000074F0000-0x0000000007586000-memory.dmp

memory/1780-40-0x0000000007480000-0x0000000007491000-memory.dmp

memory/1780-41-0x0000000004C90000-0x0000000004C9E000-memory.dmp

memory/1780-42-0x0000000007590000-0x00000000075A4000-memory.dmp

memory/1780-43-0x00000000075D0000-0x00000000075EA000-memory.dmp

memory/1780-44-0x00000000075B0000-0x00000000075B8000-memory.dmp

memory/1780-47-0x0000000072D40000-0x00000000734F0000-memory.dmp