108d77dce16c79be3ceb07e44c7465245017db0a0ab9d001a98d2ff1d53c2b04

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10/03/2025, 19:53

Target

108d77dce16c79be3ceb07e44c7465245017db0a0ab9d001a98d2ff1d53c2b04.dll
Size

137KB
MD5

9d72fe3ec5856daa8fab0e6e2231d1be
SHA1

38575e9b90876d1089c7a16a2c0385d5ea84f171
SHA256

108d77dce16c79be3ceb07e44c7465245017db0a0ab9d001a98d2ff1d53c2b04
SHA512

1452346a75bac1bb5c37047e221b95e26b2f6341bbd20e443f6b9ae863bf3336f29b25b2d3252e175a1183ee76f7e93fa3afdabc99019e39e77678d2bc8574f1
SSDEEP

3072:lR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu/:o25GgFny61mraV

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
1148	2168	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 3012 wrote to memory of 2168	3012	rundll32.exe	31
PID 3012 wrote to memory of 2168	3012	rundll32.exe	31
PID 3012 wrote to memory of 2168	3012	rundll32.exe	31
PID 3012 wrote to memory of 2168	3012	rundll32.exe	31
PID 3012 wrote to memory of 2168	3012	rundll32.exe	31
PID 3012 wrote to memory of 2168	3012	rundll32.exe	31
PID 3012 wrote to memory of 2168	3012	rundll32.exe	31
PID 2168 wrote to memory of 1148	2168	rundll32.exe	32
PID 2168 wrote to memory of 1148	2168	rundll32.exe	32
PID 2168 wrote to memory of 1148	2168	rundll32.exe	32
PID 2168 wrote to memory of 1148	2168	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\108d77dce16c79be3ceb07e44c7465245017db0a0ab9d001a98d2ff1d53c2b04.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\108d77dce16c79be3ceb07e44c7465245017db0a0ab9d001a98d2ff1d53c2b04.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:2168
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2168 -s 232
    3⤵
    - Program crash
    PID:1148

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:628