f32749877eca9e940ceb6d6ee445e4eee5c526242b714cc4e7c29d7c459a1c7d

Analysis

max time kernel
14s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28/01/2025, 05:01

Target

f32749877eca9e940ceb6d6ee445e4eee5c526242b714cc4e7c29d7c459a1c7d.dll
Size

137KB
MD5

60f3b91184119e7935eb2ec088d366a6
SHA1

3df8edabd359b274dd0a242e56f9425c6b2e53f0
SHA256

f32749877eca9e940ceb6d6ee445e4eee5c526242b714cc4e7c29d7c459a1c7d
SHA512

f5b2f08ef22e5e1914421244b2c6de969509038062a565c30a6f6756ddbb3ae14be8050e07e076e0ba9c8531d40e56459a9e04f1d47968b45195f791d1ddefad
SSDEEP

3072:wR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu:V25GgFny61mra

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
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	rundll32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	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
2148	1856	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 796 wrote to memory of 1856	796	rundll32.exe	29
PID 796 wrote to memory of 1856	796	rundll32.exe	29
PID 796 wrote to memory of 1856	796	rundll32.exe	29
PID 796 wrote to memory of 1856	796	rundll32.exe	29
PID 796 wrote to memory of 1856	796	rundll32.exe	29
PID 796 wrote to memory of 1856	796	rundll32.exe	29
PID 796 wrote to memory of 1856	796	rundll32.exe	29
PID 1856 wrote to memory of 2148	1856	rundll32.exe	30
PID 1856 wrote to memory of 2148	1856	rundll32.exe	30
PID 1856 wrote to memory of 2148	1856	rundll32.exe	30
PID 1856 wrote to memory of 2148	1856	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f32749877eca9e940ceb6d6ee445e4eee5c526242b714cc4e7c29d7c459a1c7d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:796
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f32749877eca9e940ceb6d6ee445e4eee5c526242b714cc4e7c29d7c459a1c7d.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:1856
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1856 -s 232
    3⤵
    - Program crash
    PID:2148

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2816