04f0df8e0275910962472abce96a8baa2e4495352aaf09fb5ece3d732b0b6a1c

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03/03/2025, 19:20

Target

04f0df8e0275910962472abce96a8baa2e4495352aaf09fb5ece3d732b0b6a1c.dll
Size

137KB
MD5

d6cc99872584ec77da688f6e3ae1e38c
SHA1

4b2b3828dac431da8cdfcc0c445076c2cf0aa736
SHA256

04f0df8e0275910962472abce96a8baa2e4495352aaf09fb5ece3d732b0b6a1c
SHA512

9b8c43a4155170bff854a92914e570f3d0d6e37062cbded9ce49ae58699a6c8f0491e9ceb2c9ff7a723a0c1411ac25f96038057be87e68bc483baced0306bdf5
SSDEEP

3072:QR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuIP:125GgFny61mrac

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 created	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File opened for modification	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1724	2532	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 1104 wrote to memory of 2532	1104	rundll32.exe	31
PID 1104 wrote to memory of 2532	1104	rundll32.exe	31
PID 1104 wrote to memory of 2532	1104	rundll32.exe	31
PID 1104 wrote to memory of 2532	1104	rundll32.exe	31
PID 1104 wrote to memory of 2532	1104	rundll32.exe	31
PID 1104 wrote to memory of 2532	1104	rundll32.exe	31
PID 1104 wrote to memory of 2532	1104	rundll32.exe	31
PID 2532 wrote to memory of 1724	2532	rundll32.exe	32
PID 2532 wrote to memory of 1724	2532	rundll32.exe	32
PID 2532 wrote to memory of 1724	2532	rundll32.exe	32
PID 2532 wrote to memory of 1724	2532	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\04f0df8e0275910962472abce96a8baa2e4495352aaf09fb5ece3d732b0b6a1c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1104
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\04f0df8e0275910962472abce96a8baa2e4495352aaf09fb5ece3d732b0b6a1c.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:2532
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2532 -s 232
    3⤵
    - Program crash
    PID:1724

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2476