455fffa16a4f191485fafb789fb04d391f6dc541f943e27b3b1820fad277fd0c

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/03/2025, 22:58

Target

455fffa16a4f191485fafb789fb04d391f6dc541f943e27b3b1820fad277fd0c.dll
Size

137KB
MD5

342a091e3f72396de0af0f591b418a33
SHA1

ee2444a0987c2e8ad7c62cba0f151f30e3f2aca4
SHA256

455fffa16a4f191485fafb789fb04d391f6dc541f943e27b3b1820fad277fd0c
SHA512

f884bebbea5e161ceae127bf0b41b8423f2a9390a1738a66aca187c48307b799103c43989ab15dbf06502b7a1752965db8f66741c972d4c924c6c3c853617471
SSDEEP

3072:oR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuL:925GgFny61mra9

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1732	3012	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 1924 wrote to memory of 3012	1924	rundll32.exe	30
PID 1924 wrote to memory of 3012	1924	rundll32.exe	30
PID 1924 wrote to memory of 3012	1924	rundll32.exe	30
PID 1924 wrote to memory of 3012	1924	rundll32.exe	30
PID 1924 wrote to memory of 3012	1924	rundll32.exe	30
PID 1924 wrote to memory of 3012	1924	rundll32.exe	30
PID 1924 wrote to memory of 3012	1924	rundll32.exe	30
PID 3012 wrote to memory of 1732	3012	rundll32.exe	31
PID 3012 wrote to memory of 1732	3012	rundll32.exe	31
PID 3012 wrote to memory of 1732	3012	rundll32.exe	31
PID 3012 wrote to memory of 1732	3012	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\455fffa16a4f191485fafb789fb04d391f6dc541f943e27b3b1820fad277fd0c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\455fffa16a4f191485fafb789fb04d391f6dc541f943e27b3b1820fad277fd0c.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:3012
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 228
    3⤵
    - Program crash
    PID:1732

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:1148