6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06/03/2025, 03:40

Target

6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa.dll
Size

137KB
MD5

21686af496a9759f08456c0161b05274
SHA1

d1db5d34a657b82261185935a14ebc2c373138e6
SHA256

6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa
SHA512

f03f04eb4a8cf7d482d0313f50a5d58c0b2d429379a6de4684c05bd6e6f9b6659d359fd6acf8b5caf85ccab3671eeec4171ae6acab149a5665c1a52a06fb6bbe
SSDEEP

3072:ER02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuO:h25GgFny61mra8

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
2764	756	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 2712 wrote to memory of 756	2712	rundll32.exe	31
PID 2712 wrote to memory of 756	2712	rundll32.exe	31
PID 2712 wrote to memory of 756	2712	rundll32.exe	31
PID 2712 wrote to memory of 756	2712	rundll32.exe	31
PID 2712 wrote to memory of 756	2712	rundll32.exe	31
PID 2712 wrote to memory of 756	2712	rundll32.exe	31
PID 2712 wrote to memory of 756	2712	rundll32.exe	31
PID 756 wrote to memory of 2764	756	rundll32.exe	32
PID 756 wrote to memory of 2764	756	rundll32.exe	32
PID 756 wrote to memory of 2764	756	rundll32.exe	32
PID 756 wrote to memory of 2764	756	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa.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:756
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 756 -s 228
    3⤵
    - Program crash
    PID:2764

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2772