236bc5f3d5b4a1435ef10b477ff15093562dca0ae87e6c9fd5bcad760ba497f5

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-01-2025 11:22

Target

236bc5f3d5b4a1435ef10b477ff15093562dca0ae87e6c9fd5bcad760ba497f5N.dll
Size

137KB
MD5

9e98bbd8300724a3d379d9dcc537b6d0
SHA1

d7e44e2e8eedee7d5ce003043eb6c1acf84f4d83
SHA256

236bc5f3d5b4a1435ef10b477ff15093562dca0ae87e6c9fd5bcad760ba497f5
SHA512

d2c2c686365b37f2de062f341e2eb58b7061dec11d611e1889560498c933fd47544ddeb5b8f824bd6243966e3dcd85be0f63ddc43c6437d4741b4d4c4e013129
SSDEEP

3072:OR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu/:b25GgFny61mra9

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
2388	1892	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 2308 wrote to memory of 1892	2308	rundll32.exe	30
PID 2308 wrote to memory of 1892	2308	rundll32.exe	30
PID 2308 wrote to memory of 1892	2308	rundll32.exe	30
PID 2308 wrote to memory of 1892	2308	rundll32.exe	30
PID 2308 wrote to memory of 1892	2308	rundll32.exe	30
PID 2308 wrote to memory of 1892	2308	rundll32.exe	30
PID 2308 wrote to memory of 1892	2308	rundll32.exe	30
PID 1892 wrote to memory of 2388	1892	rundll32.exe	31
PID 1892 wrote to memory of 2388	1892	rundll32.exe	31
PID 1892 wrote to memory of 2388	1892	rundll32.exe	31
PID 1892 wrote to memory of 2388	1892	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\236bc5f3d5b4a1435ef10b477ff15093562dca0ae87e6c9fd5bcad760ba497f5N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\236bc5f3d5b4a1435ef10b477ff15093562dca0ae87e6c9fd5bcad760ba497f5N.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:1892
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1892 -s 228
    3⤵
    - Program crash
    PID:2388

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2460