81904e25508473bc3a1cf4222b2022f29d1fb8aab83ffda14528df3ac4a65acc

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/03/2025, 01:19

Target

81904e25508473bc3a1cf4222b2022f29d1fb8aab83ffda14528df3ac4a65acc.dll
Size

137KB
MD5

ca1eec3eccef17e76ecc6cd56d743dd7
SHA1

fc256ff44c8846c7dc2b7739008cef09d23b6fe3
SHA256

81904e25508473bc3a1cf4222b2022f29d1fb8aab83ffda14528df3ac4a65acc
SHA512

0342d58cb9f66ca28cf4a3d6edb5172ee5e5e68f6e2d9c303123ba3105f4ad1a7ed9e5edac3c2b20fd55fcfe9b599d9964d385634559af83021cbbb9e137e922
SSDEEP

3072:oR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuK:925GgFny61mraM

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2548	2480	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 2252 wrote to memory of 2480	2252	rundll32.exe	30
PID 2252 wrote to memory of 2480	2252	rundll32.exe	30
PID 2252 wrote to memory of 2480	2252	rundll32.exe	30
PID 2252 wrote to memory of 2480	2252	rundll32.exe	30
PID 2252 wrote to memory of 2480	2252	rundll32.exe	30
PID 2252 wrote to memory of 2480	2252	rundll32.exe	30
PID 2252 wrote to memory of 2480	2252	rundll32.exe	30
PID 2480 wrote to memory of 2548	2480	rundll32.exe	31
PID 2480 wrote to memory of 2548	2480	rundll32.exe	31
PID 2480 wrote to memory of 2548	2480	rundll32.exe	31
PID 2480 wrote to memory of 2548	2480	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\81904e25508473bc3a1cf4222b2022f29d1fb8aab83ffda14528df3ac4a65acc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\81904e25508473bc3a1cf4222b2022f29d1fb8aab83ffda14528df3ac4a65acc.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:2480
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2480 -s 228
    3⤵
    - Program crash
    PID:2548