44629383e2a021f739e933bea043e36ce8378aefbe9774efa4ecee8350ed4d7b

Analysis

max time kernel
103s
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 06:38

Target

44629383e2a021f739e933bea043e36ce8378aefbe9774efa4ecee8350ed4d7b.dll
Size

137KB
MD5

391b13ca0898462193a421a2b6640bc7
SHA1

fe68750c8ffd72390e5d1e2687ff305d6df55e40
SHA256

44629383e2a021f739e933bea043e36ce8378aefbe9774efa4ecee8350ed4d7b
SHA512

e0026730c48f155d3a5881615af9c9345f0f31336441bf6c9a535908712a0ed9ac13f71e7e14b59ade738b8e901a071992577efbf8cafafdb1a5ea73d216b702
SSDEEP

3072:tR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuA:g25GgFny61mraC

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
2340	796	WerFault.exe	31

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 2280 wrote to memory of 796	2280	rundll32.exe	31
PID 2280 wrote to memory of 796	2280	rundll32.exe	31
PID 2280 wrote to memory of 796	2280	rundll32.exe	31
PID 2280 wrote to memory of 796	2280	rundll32.exe	31
PID 2280 wrote to memory of 796	2280	rundll32.exe	31
PID 2280 wrote to memory of 796	2280	rundll32.exe	31
PID 2280 wrote to memory of 796	2280	rundll32.exe	31
PID 796 wrote to memory of 2340	796	rundll32.exe	32
PID 796 wrote to memory of 2340	796	rundll32.exe	32
PID 796 wrote to memory of 2340	796	rundll32.exe	32
PID 796 wrote to memory of 2340	796	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\44629383e2a021f739e933bea043e36ce8378aefbe9774efa4ecee8350ed4d7b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\44629383e2a021f739e933bea043e36ce8378aefbe9774efa4ecee8350ed4d7b.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:796
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 228
    3⤵
    - Program crash
    PID:2340

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2284