9f8d91ada5635f01f7d34b87a911bd39ddb4c49462b31674ae5795bce2dbe4b0

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
14-11-2024 07:06

Target

9f8d91ada5635f01f7d34b87a911bd39ddb4c49462b31674ae5795bce2dbe4b0N.dll
Size

137KB
MD5

e48d0f338eb57be83eddaa72e5423020
SHA1

2619b633e8bdd309241b5f7ca0895394876cd343
SHA256

9f8d91ada5635f01f7d34b87a911bd39ddb4c49462b31674ae5795bce2dbe4b0
SHA512

6394e30781202a1bee26b3350cb1aa8ea48471d4404cb61de8b9d68efe87d9e2106eb93023a0a2e86725534cc99df3c17378b9826966bab2ad2ae85c23b7890c
SSDEEP

3072:pR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu:k25GgFny61mra

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

Processes:

rundll32.exe

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
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Processes:

rundll32.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Spooler\ImagePath = "Spoolsv.exe" rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1956 1712 WerFault.exe rundll32.exe
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.
discovery

System Language Discovery
T1614.001

Processes:

rundll32.exe

description ioc process

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

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

pid	pid_target	process	target process
1956	1712	WerFault.exe	rundll32.exe

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

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2628 wrote to memory of 1712	2628	rundll32.exe	rundll32.exe
PID 2628 wrote to memory of 1712	2628	rundll32.exe	rundll32.exe
PID 2628 wrote to memory of 1712	2628	rundll32.exe	rundll32.exe
PID 2628 wrote to memory of 1712	2628	rundll32.exe	rundll32.exe
PID 2628 wrote to memory of 1712	2628	rundll32.exe	rundll32.exe
PID 2628 wrote to memory of 1712	2628	rundll32.exe	rundll32.exe
PID 2628 wrote to memory of 1712	2628	rundll32.exe	rundll32.exe
PID 1712 wrote to memory of 1956	1712	rundll32.exe	WerFault.exe
PID 1712 wrote to memory of 1956	1712	rundll32.exe	WerFault.exe
PID 1712 wrote to memory of 1956	1712	rundll32.exe	WerFault.exe
PID 1712 wrote to memory of 1956	1712	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f8d91ada5635f01f7d34b87a911bd39ddb4c49462b31674ae5795bce2dbe4b0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f8d91ada5635f01f7d34b87a911bd39ddb4c49462b31674ae5795bce2dbe4b0N.dll,#1
  2⤵
  - Boot or Logon Autostart Execution: Port Monitors
  - Sets service image path in registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 228
    3⤵
    - Program crash
    PID:1956