04ef68cd7f95e7cbe8a5f29ac27570d05425f0404ab819a2fa3edb5067ec8b17

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/01/2025, 19:14

Target

04ef68cd7f95e7cbe8a5f29ac27570d05425f0404ab819a2fa3edb5067ec8b17.dll
Size

137KB
MD5

2338763483313f4469d83c96a61a2800
SHA1

e4443981eae80a46d2e487917e75d48d98ac3d25
SHA256

04ef68cd7f95e7cbe8a5f29ac27570d05425f0404ab819a2fa3edb5067ec8b17
SHA512

a6e482391aee86c588a84a335eac1bfeb53db6ff7548d09e0aa476ab45e874e76e6d862bb3d50ebe87237e19370f38530da6f4aed8c94cb1adc83c710bfc78d6
SSDEEP

3072:xR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuQ:c25GgFny61mrau

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
2104	332	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 2296 wrote to memory of 332	2296	rundll32.exe	31
PID 2296 wrote to memory of 332	2296	rundll32.exe	31
PID 2296 wrote to memory of 332	2296	rundll32.exe	31
PID 2296 wrote to memory of 332	2296	rundll32.exe	31
PID 2296 wrote to memory of 332	2296	rundll32.exe	31
PID 2296 wrote to memory of 332	2296	rundll32.exe	31
PID 2296 wrote to memory of 332	2296	rundll32.exe	31
PID 332 wrote to memory of 2104	332	rundll32.exe	32
PID 332 wrote to memory of 2104	332	rundll32.exe	32
PID 332 wrote to memory of 2104	332	rundll32.exe	32
PID 332 wrote to memory of 2104	332	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\04ef68cd7f95e7cbe8a5f29ac27570d05425f0404ab819a2fa3edb5067ec8b17.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\04ef68cd7f95e7cbe8a5f29ac27570d05425f0404ab819a2fa3edb5067ec8b17.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:332
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 332 -s 228
    3⤵
    - Program crash
    PID:2104