Analysis
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max time kernel
140s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
04/11/2024, 02:49
Static task
static1
Behavioral task
behavioral1
Sample
b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll
Resource
win7-20240903-en
General
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Target
b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll
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Size
16KB
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MD5
7d2138c790b086d6f1183e12f21fe861
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SHA1
7580278b5132bb59159a9fbe5f154092de0f9d0c
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SHA256
b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347
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SHA512
44946f4f5e30cbe02b2722cd0a63a4dce80841f72a4ba6d897a261658b22027bfe4658968cf1e47ce2bde1a3950c0f30ab823836daefa7b9bf75ec4f9d631827
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SSDEEP
192:n7KSdtf/wB7vzXDe3mt+D69mdzfYluDDDDDDDDDDDDDDDDDDD+yMsuyK3fBQ2fAi:neUnwB7XV1ddDfBJfA
Malware Config
Signatures
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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender Security Center\Notifications rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender Security Center\Notifications\DisableEnhancedNotifications = "1" rundll32.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows Defender Security Center\Notifications rundll32.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 1780 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2912 760 WerFault.exe 84 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1780 powershell.exe 1780 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1780 powershell.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2080 wrote to memory of 760 2080 rundll32.exe 84 PID 2080 wrote to memory of 760 2080 rundll32.exe 84 PID 2080 wrote to memory of 760 2080 rundll32.exe 84 PID 760 wrote to memory of 1780 760 rundll32.exe 85 PID 760 wrote to memory of 1780 760 rundll32.exe 85 PID 760 wrote to memory of 1780 760 rundll32.exe 85
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2080 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b9153c63ae5911dea43344aa7058e14dd2987652423e3178c5cc1e6cad4fc347.dll,#12⤵
- Modifies Windows Defender notification settings
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:760 -
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:TEMP3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1780
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 10083⤵
- Program crash
PID:2912
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 760 -ip 7601⤵PID:1604
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82