78907409a6014a12aa0b2f0db5fb3a87e03a5b75a9709238ceaf96812e40c8c3

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/03/2025, 05:08

Target

78907409a6014a12aa0b2f0db5fb3a87e03a5b75a9709238ceaf96812e40c8c3.dll
Size

137KB
MD5

7d0b0c5a6e29785e4c0da7c8bcb35517
SHA1

4f84477557111dc5ee6f4928e03a447a6ef27df4
SHA256

78907409a6014a12aa0b2f0db5fb3a87e03a5b75a9709238ceaf96812e40c8c3
SHA512

c123fcbcfdf1f3bea2ac109c3f19f47a5916a6daaad8edcefda3a0d9d06769ed8d5f0c6caf24eab69a36fbbaaaa1f95dfb24cb6ee8ff7c00bc4d8fba765776a9
SSDEEP

3072:xR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuP:c25GgFny61mraB

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
2376	2356	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 2344 wrote to memory of 2356	2344	rundll32.exe	30
PID 2344 wrote to memory of 2356	2344	rundll32.exe	30
PID 2344 wrote to memory of 2356	2344	rundll32.exe	30
PID 2344 wrote to memory of 2356	2344	rundll32.exe	30
PID 2344 wrote to memory of 2356	2344	rundll32.exe	30
PID 2344 wrote to memory of 2356	2344	rundll32.exe	30
PID 2344 wrote to memory of 2356	2344	rundll32.exe	30
PID 2356 wrote to memory of 2376	2356	rundll32.exe	31
PID 2356 wrote to memory of 2376	2356	rundll32.exe	31
PID 2356 wrote to memory of 2376	2356	rundll32.exe	31
PID 2356 wrote to memory of 2376	2356	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\78907409a6014a12aa0b2f0db5fb3a87e03a5b75a9709238ceaf96812e40c8c3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\78907409a6014a12aa0b2f0db5fb3a87e03a5b75a9709238ceaf96812e40c8c3.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:2356
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 228
    3⤵
    - Program crash
    PID:2376

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2760