d4c47906c487bbff48097b6fa4b3a61e17bb74984208b98f2a30bc87d86e09b2

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/03/2025, 05:09

Target

d4c47906c487bbff48097b6fa4b3a61e17bb74984208b98f2a30bc87d86e09b2.dll
Size

137KB
MD5

5d604e63980c7c6239027a2f242af8c0
SHA1

6229a2e32b7bba9e2f812be751816c6252823f74
SHA256

d4c47906c487bbff48097b6fa4b3a61e17bb74984208b98f2a30bc87d86e09b2
SHA512

c3bcad8d714e9ba44913323a341a5a4b590e3fc6de35274eee718c04efc943f05efba821ad4cebb3ac4e3a800385d76716593d79c1d25f2a87bbec59e65c3854
SSDEEP

3072:gR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu7:l25GgFny61mrad

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
2084	2232	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 2068 wrote to memory of 2232	2068	rundll32.exe	31
PID 2068 wrote to memory of 2232	2068	rundll32.exe	31
PID 2068 wrote to memory of 2232	2068	rundll32.exe	31
PID 2068 wrote to memory of 2232	2068	rundll32.exe	31
PID 2068 wrote to memory of 2232	2068	rundll32.exe	31
PID 2068 wrote to memory of 2232	2068	rundll32.exe	31
PID 2068 wrote to memory of 2232	2068	rundll32.exe	31
PID 2232 wrote to memory of 2084	2232	rundll32.exe	32
PID 2232 wrote to memory of 2084	2232	rundll32.exe	32
PID 2232 wrote to memory of 2084	2232	rundll32.exe	32
PID 2232 wrote to memory of 2084	2232	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d4c47906c487bbff48097b6fa4b3a61e17bb74984208b98f2a30bc87d86e09b2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d4c47906c487bbff48097b6fa4b3a61e17bb74984208b98f2a30bc87d86e09b2.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:2232
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 228
    3⤵
    - Program crash
    PID:2084