9dea3ec17bc163613c289db8351a589bf6544071940742f510897f16e9af16bc

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/03/2025, 02:45

Target

9dea3ec17bc163613c289db8351a589bf6544071940742f510897f16e9af16bc.dll
Size

137KB
MD5

d35db85eec7f7cb6ed56e4d57446312b
SHA1

1cbdd93de16ca5dbd98531487e037a7f82ed558f
SHA256

9dea3ec17bc163613c289db8351a589bf6544071940742f510897f16e9af16bc
SHA512

76f15964611de4e6344aa0a66d6a309406bdf7955af553aac4ed57faa17b580834b743ba8d97241447d309564060a062270ad76575b92a451c66415aef0d71d8
SSDEEP

3072:rR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuX:G25GgFny61mra5

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 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	2320	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 2156 wrote to memory of 2320	2156	rundll32.exe	30
PID 2156 wrote to memory of 2320	2156	rundll32.exe	30
PID 2156 wrote to memory of 2320	2156	rundll32.exe	30
PID 2156 wrote to memory of 2320	2156	rundll32.exe	30
PID 2156 wrote to memory of 2320	2156	rundll32.exe	30
PID 2156 wrote to memory of 2320	2156	rundll32.exe	30
PID 2156 wrote to memory of 2320	2156	rundll32.exe	30
PID 2320 wrote to memory of 2368	2320	rundll32.exe	31
PID 2320 wrote to memory of 2368	2320	rundll32.exe	31
PID 2320 wrote to memory of 2368	2320	rundll32.exe	31
PID 2320 wrote to memory of 2368	2320	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9dea3ec17bc163613c289db8351a589bf6544071940742f510897f16e9af16bc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9dea3ec17bc163613c289db8351a589bf6544071940742f510897f16e9af16bc.dll,#1
  2⤵
  - Boot or Logon Autostart Execution: Port Monitors
  - Sets service image path in registry
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2320
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2320 -s 232
    3⤵
    - Program crash
    PID:2368