ddc20ff6fcc9bdf41c1b4f0c0c2d49084b67190c0c8e261787ca42c517b1e3ca

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27/01/2025, 08:09

Target

ddc20ff6fcc9bdf41c1b4f0c0c2d49084b67190c0c8e261787ca42c517b1e3caN.dll
Size

137KB
MD5

5acbcc15a83b3b6c113cb167d5c9a140
SHA1

00085aac06366f8cbd0c0b4258b8b0ea7c6a7494
SHA256

ddc20ff6fcc9bdf41c1b4f0c0c2d49084b67190c0c8e261787ca42c517b1e3ca
SHA512

1161b0e6f5aa5097714e5589a9729fe912516359a025efd5e9a8fdf9d6d8c06ab5ba19c92d21b0e3cf04b5d5417ff4d65615572afa6303e1671eae401e05c54b
SSDEEP

3072:1R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuD:Y25GgFny61mraZ

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1816	2072	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 772 wrote to memory of 2072	772	rundll32.exe	31
PID 772 wrote to memory of 2072	772	rundll32.exe	31
PID 772 wrote to memory of 2072	772	rundll32.exe	31
PID 772 wrote to memory of 2072	772	rundll32.exe	31
PID 772 wrote to memory of 2072	772	rundll32.exe	31
PID 772 wrote to memory of 2072	772	rundll32.exe	31
PID 772 wrote to memory of 2072	772	rundll32.exe	31
PID 2072 wrote to memory of 1816	2072	rundll32.exe	32
PID 2072 wrote to memory of 1816	2072	rundll32.exe	32
PID 2072 wrote to memory of 1816	2072	rundll32.exe	32
PID 2072 wrote to memory of 1816	2072	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ddc20ff6fcc9bdf41c1b4f0c0c2d49084b67190c0c8e261787ca42c517b1e3caN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:772
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ddc20ff6fcc9bdf41c1b4f0c0c2d49084b67190c0c8e261787ca42c517b1e3caN.dll,#1
  2⤵
  - Boot or Logon Autostart Execution: Port Monitors
  - Sets service image path in registry
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2072
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 228
    3⤵
    - Program crash
    PID:1816

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2624