7d53c33d9f83abaf854a7ca96973226533659ad0800c290cd787d8cb23497550

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/03/2025, 01:16

Target

7d53c33d9f83abaf854a7ca96973226533659ad0800c290cd787d8cb23497550.dll
Size

137KB
MD5

2027c3e1a6842ef18f9b69c30f60748d
SHA1

15484be9d393007a01a60be34cb7255fb72caceb
SHA256

7d53c33d9f83abaf854a7ca96973226533659ad0800c290cd787d8cb23497550
SHA512

2821381c0c8294e02718d7cb316f156843ade004b5b2380a934464df882a9c5dd7d7ccb30c8e2933bceab97cab06dd8aec5ede042ed0a2eaf54458e1e9bd5ec1
SSDEEP

3072:uR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuZ:725GgFny61mraP

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
2280	1980	WerFault.exe	28

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 1860 wrote to memory of 1980	1860	rundll32.exe	28
PID 1860 wrote to memory of 1980	1860	rundll32.exe	28
PID 1860 wrote to memory of 1980	1860	rundll32.exe	28
PID 1860 wrote to memory of 1980	1860	rundll32.exe	28
PID 1860 wrote to memory of 1980	1860	rundll32.exe	28
PID 1860 wrote to memory of 1980	1860	rundll32.exe	28
PID 1860 wrote to memory of 1980	1860	rundll32.exe	28
PID 1980 wrote to memory of 2280	1980	rundll32.exe	29
PID 1980 wrote to memory of 2280	1980	rundll32.exe	29
PID 1980 wrote to memory of 2280	1980	rundll32.exe	29
PID 1980 wrote to memory of 2280	1980	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7d53c33d9f83abaf854a7ca96973226533659ad0800c290cd787d8cb23497550.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7d53c33d9f83abaf854a7ca96973226533659ad0800c290cd787d8cb23497550.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:1980
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1980 -s 228
    3⤵
    - Program crash
    PID:2280

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:1972