e9a67618719f9be8b8e039a8a2e240bf7ddbc890c20989eb4cefcc99825bd895

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/03/2025, 13:59

Target

e9a67618719f9be8b8e039a8a2e240bf7ddbc890c20989eb4cefcc99825bd895.dll
Size

137KB
MD5

43fc50cef1d6e00e5b07928c4deebeb3
SHA1

af89306b8f95250e162e40c94f1b9ea16df8d600
SHA256

e9a67618719f9be8b8e039a8a2e240bf7ddbc890c20989eb4cefcc99825bd895
SHA512

2f374df19608358acff8773a689a7fb03d2a281c9f45ac2fcd6664ecca27d4033e1231654ad4e13058cffbfb68113a32319fb030c6491c7ed7a486f6d06c4a0e
SSDEEP

3072:mR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuE:D25GgFny61mra6

Score

8^/10

Boot or Logon Autostart Execution: Port Monitors 1 TTPs 2 IoCs

Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

Port Monitors

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	rundll32.exe

Sets service image path in registry 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Spooler\ImagePath = "Spoolsv.exe"	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\com\comb.dll	rundll32.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File created	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2368	1940	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

System Language Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 1940	2540	rundll32.exe	31
PID 2540 wrote to memory of 1940	2540	rundll32.exe	31
PID 2540 wrote to memory of 1940	2540	rundll32.exe	31
PID 2540 wrote to memory of 1940	2540	rundll32.exe	31
PID 2540 wrote to memory of 1940	2540	rundll32.exe	31
PID 2540 wrote to memory of 1940	2540	rundll32.exe	31
PID 2540 wrote to memory of 1940	2540	rundll32.exe	31
PID 1940 wrote to memory of 2368	1940	rundll32.exe	32
PID 1940 wrote to memory of 2368	1940	rundll32.exe	32
PID 1940 wrote to memory of 2368	1940	rundll32.exe	32
PID 1940 wrote to memory of 2368	1940	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e9a67618719f9be8b8e039a8a2e240bf7ddbc890c20989eb4cefcc99825bd895.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2540
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e9a67618719f9be8b8e039a8a2e240bf7ddbc890c20989eb4cefcc99825bd895.dll,#1
  2⤵
  - Boot or Logon Autostart Execution: Port Monitors
  - Sets service image path in registry
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 228
    3⤵
    - Program crash
    PID:2368

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2804