47fd4fcbad0d377d2a4be0e17c4f58ec3de3ccb71b7c1107070c3b14ced7d7b9

Analysis

max time kernel
14s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/03/2025, 00:32

Target

47fd4fcbad0d377d2a4be0e17c4f58ec3de3ccb71b7c1107070c3b14ced7d7b9.dll
Size

137KB
MD5

946389dc464e29da1f3448537cdd1afa
SHA1

08fcb8233737bf7b6b0ccc5f64b7225372c1e56f
SHA256

47fd4fcbad0d377d2a4be0e17c4f58ec3de3ccb71b7c1107070c3b14ced7d7b9
SHA512

a43a8730f0978a5730e39e3c5de7c7e8c546445ecf2ab5feda4ec15e1ad8a7b435c27391d9cf785943efaf3f1bb99179ca1c6dcf4a0d72de5b266fb6f1184f73
SSDEEP

3072:RR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuz:825GgFny61mraB

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
2752	2668	WerFault.exe	30

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 2124 wrote to memory of 2668	2124	rundll32.exe	30
PID 2124 wrote to memory of 2668	2124	rundll32.exe	30
PID 2124 wrote to memory of 2668	2124	rundll32.exe	30
PID 2124 wrote to memory of 2668	2124	rundll32.exe	30
PID 2124 wrote to memory of 2668	2124	rundll32.exe	30
PID 2124 wrote to memory of 2668	2124	rundll32.exe	30
PID 2124 wrote to memory of 2668	2124	rundll32.exe	30
PID 2668 wrote to memory of 2752	2668	rundll32.exe	31
PID 2668 wrote to memory of 2752	2668	rundll32.exe	31
PID 2668 wrote to memory of 2752	2668	rundll32.exe	31
PID 2668 wrote to memory of 2752	2668	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\47fd4fcbad0d377d2a4be0e17c4f58ec3de3ccb71b7c1107070c3b14ced7d7b9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\47fd4fcbad0d377d2a4be0e17c4f58ec3de3ccb71b7c1107070c3b14ced7d7b9.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:2668
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2668 -s 228
    3⤵
    - Program crash
    PID:2752