bae5e3cf522158c51a3dde01598fd1407c76bb24cf0fe5e0d4e25e752520312c

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/03/2025, 08:24

Target

bae5e3cf522158c51a3dde01598fd1407c76bb24cf0fe5e0d4e25e752520312c.dll
Size

137KB
MD5

68f4177a4258327d3d7395270cc085bc
SHA1

e36602d8e128dd87d82b78a06a8425dfcf5a4caa
SHA256

bae5e3cf522158c51a3dde01598fd1407c76bb24cf0fe5e0d4e25e752520312c
SHA512

f356367d411121b9d562473f3e9ea0010080e40acbc24ffb25476e5586903162122030cd45ddd1543053166ff68b71ca00a78e9c00300e8c2b840ed7ed418f37
SSDEEP

3072:6R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuC:v25GgFny61mraw

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
2504	2484	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 2304 wrote to memory of 2484	2304	rundll32.exe	31
PID 2304 wrote to memory of 2484	2304	rundll32.exe	31
PID 2304 wrote to memory of 2484	2304	rundll32.exe	31
PID 2304 wrote to memory of 2484	2304	rundll32.exe	31
PID 2304 wrote to memory of 2484	2304	rundll32.exe	31
PID 2304 wrote to memory of 2484	2304	rundll32.exe	31
PID 2304 wrote to memory of 2484	2304	rundll32.exe	31
PID 2484 wrote to memory of 2504	2484	rundll32.exe	32
PID 2484 wrote to memory of 2504	2484	rundll32.exe	32
PID 2484 wrote to memory of 2504	2484	rundll32.exe	32
PID 2484 wrote to memory of 2504	2484	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bae5e3cf522158c51a3dde01598fd1407c76bb24cf0fe5e0d4e25e752520312c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bae5e3cf522158c51a3dde01598fd1407c76bb24cf0fe5e0d4e25e752520312c.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:2484
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2484 -s 228
    3⤵
    - Program crash
    PID:2504