5e8c5b576dd8a3d7f57e18085f040e7ff751395a3fbc265a1baf11268024ab4e

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/03/2025, 23:50

Target

5e8c5b576dd8a3d7f57e18085f040e7ff751395a3fbc265a1baf11268024ab4e.dll
Size

137KB
MD5

af9d65a91aca036afb3df7d9b029eab6
SHA1

d631f806782b79519dedab2a263efc424ff30692
SHA256

5e8c5b576dd8a3d7f57e18085f040e7ff751395a3fbc265a1baf11268024ab4e
SHA512

889c887a1a181bfb6a4432287a24775859cff9bbafaa0c90d658145cda0d0f36ed967d4a8e20cd3a744cd566e0833b4993bf34359d496503638de04aa07cc15c
SSDEEP

3072:9R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUua:Q25GgFny61mraQ

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
2684	2760	WerFault.exe	30

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 2756 wrote to memory of 2760	2756	rundll32.exe	30
PID 2756 wrote to memory of 2760	2756	rundll32.exe	30
PID 2756 wrote to memory of 2760	2756	rundll32.exe	30
PID 2756 wrote to memory of 2760	2756	rundll32.exe	30
PID 2756 wrote to memory of 2760	2756	rundll32.exe	30
PID 2756 wrote to memory of 2760	2756	rundll32.exe	30
PID 2756 wrote to memory of 2760	2756	rundll32.exe	30
PID 2760 wrote to memory of 2684	2760	rundll32.exe	31
PID 2760 wrote to memory of 2684	2760	rundll32.exe	31
PID 2760 wrote to memory of 2684	2760	rundll32.exe	31
PID 2760 wrote to memory of 2684	2760	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5e8c5b576dd8a3d7f57e18085f040e7ff751395a3fbc265a1baf11268024ab4e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5e8c5b576dd8a3d7f57e18085f040e7ff751395a3fbc265a1baf11268024ab4e.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:2760
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2760 -s 228
    3⤵
    - Program crash
    PID:2684