ee72ecc0fc25c8e1b5a0d08ca52c70759f13cc1ecf51b8747a75bb01a546b3eb

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08/03/2025, 23:46

Target

ee72ecc0fc25c8e1b5a0d08ca52c70759f13cc1ecf51b8747a75bb01a546b3eb.dll
Size

137KB
MD5

fb375aea89b4e52a2bc8c1fb49618d3b
SHA1

71fc889dae447bbc65918ffad6cb803e5838ef96
SHA256

ee72ecc0fc25c8e1b5a0d08ca52c70759f13cc1ecf51b8747a75bb01a546b3eb
SHA512

91c62ad6f8e16d6f7ff65fdf59604294eb3acbd72513390c5bc7b1f5d5f0df28c16e843d80ba38ceb8c7860fe43d8541fca1f210f1a694d4674a09b2a9ea9783
SSDEEP

3072:XR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu9:q25GgFny61mraP

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
3012	2904	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 2820 wrote to memory of 2904	2820	rundll32.exe	30
PID 2820 wrote to memory of 2904	2820	rundll32.exe	30
PID 2820 wrote to memory of 2904	2820	rundll32.exe	30
PID 2820 wrote to memory of 2904	2820	rundll32.exe	30
PID 2820 wrote to memory of 2904	2820	rundll32.exe	30
PID 2820 wrote to memory of 2904	2820	rundll32.exe	30
PID 2820 wrote to memory of 2904	2820	rundll32.exe	30
PID 2904 wrote to memory of 3012	2904	rundll32.exe	31
PID 2904 wrote to memory of 3012	2904	rundll32.exe	31
PID 2904 wrote to memory of 3012	2904	rundll32.exe	31
PID 2904 wrote to memory of 3012	2904	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ee72ecc0fc25c8e1b5a0d08ca52c70759f13cc1ecf51b8747a75bb01a546b3eb.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ee72ecc0fc25c8e1b5a0d08ca52c70759f13cc1ecf51b8747a75bb01a546b3eb.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:2904
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 228
    3⤵
    - Program crash
    PID:3012