5aa516dc0faeb7c7d48859107002c3891f14eb97a71d5ec82c37222c5acb4b70

Analysis

max time kernel
12s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
02/03/2025, 23:41

Target

5aa516dc0faeb7c7d48859107002c3891f14eb97a71d5ec82c37222c5acb4b70.dll
Size

137KB
MD5

b1695bc2ca53be799986f6d3bf53b3ba
SHA1

cd67cd85d6a4db60ef9714c302e2c5faebea5bea
SHA256

5aa516dc0faeb7c7d48859107002c3891f14eb97a71d5ec82c37222c5acb4b70
SHA512

0904f1ed8ba8d0d559ef514dd747b38e6d921784b1da89c0817665d5c6dee6959fe9ecd83c750769ea78ce0160ec5447b434dcb21929dec5d66171ae7c43d651
SSDEEP

3072:/R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuJ:C25GgFny61mraz

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 created	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File opened for modification	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2276	2236	WerFault.exe	29

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 2304 wrote to memory of 2236	2304	rundll32.exe	29
PID 2304 wrote to memory of 2236	2304	rundll32.exe	29
PID 2304 wrote to memory of 2236	2304	rundll32.exe	29
PID 2304 wrote to memory of 2236	2304	rundll32.exe	29
PID 2304 wrote to memory of 2236	2304	rundll32.exe	29
PID 2304 wrote to memory of 2236	2304	rundll32.exe	29
PID 2304 wrote to memory of 2236	2304	rundll32.exe	29
PID 2236 wrote to memory of 2276	2236	rundll32.exe	30
PID 2236 wrote to memory of 2276	2236	rundll32.exe	30
PID 2236 wrote to memory of 2276	2236	rundll32.exe	30
PID 2236 wrote to memory of 2276	2236	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5aa516dc0faeb7c7d48859107002c3891f14eb97a71d5ec82c37222c5acb4b70.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5aa516dc0faeb7c7d48859107002c3891f14eb97a71d5ec82c37222c5acb4b70.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:2236
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 232
    3⤵
    - Program crash
    PID:2276

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2096