d2b47eb0814d77126e096f172b341603cf591670710e69c7b6641bfb4873b669

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08/03/2025, 20:29

Target

d2b47eb0814d77126e096f172b341603cf591670710e69c7b6641bfb4873b669.dll
Size

137KB
MD5

7e4d9f6fffa4c46c8b35b7151537e6c0
SHA1

8d8962a62cf3152a3a2a4b14db5a7616e89b793b
SHA256

d2b47eb0814d77126e096f172b341603cf591670710e69c7b6641bfb4873b669
SHA512

34a3ce67b4cacf4e7faf1bedc52a33ccd0243dde4645b7b0f31c3a18d2bbf265efb2661bd3d218c6f14ef20f5c2bd37176cc615afe43ff23660cd97c445eadfc
SSDEEP

3072:lR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuB: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
2652	2656	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 2196 wrote to memory of 2656	2196	rundll32.exe	31
PID 2196 wrote to memory of 2656	2196	rundll32.exe	31
PID 2196 wrote to memory of 2656	2196	rundll32.exe	31
PID 2196 wrote to memory of 2656	2196	rundll32.exe	31
PID 2196 wrote to memory of 2656	2196	rundll32.exe	31
PID 2196 wrote to memory of 2656	2196	rundll32.exe	31
PID 2196 wrote to memory of 2656	2196	rundll32.exe	31
PID 2656 wrote to memory of 2652	2656	rundll32.exe	32
PID 2656 wrote to memory of 2652	2656	rundll32.exe	32
PID 2656 wrote to memory of 2652	2656	rundll32.exe	32
PID 2656 wrote to memory of 2652	2656	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d2b47eb0814d77126e096f172b341603cf591670710e69c7b6641bfb4873b669.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d2b47eb0814d77126e096f172b341603cf591670710e69c7b6641bfb4873b669.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:2656
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2656 -s 232
    3⤵
    - Program crash
    PID:2652

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2172