767cc0a526a752424af4cb167d9c94faeaf3eebebbd04e11c1f7fd8ed5a903bf

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/03/2025, 01:03

Target

767cc0a526a752424af4cb167d9c94faeaf3eebebbd04e11c1f7fd8ed5a903bf.dll
Size

137KB
MD5

07a5b7c2b0ecb4c0fce3dc1854b19c06
SHA1

a5424f674292d9bcf1d6198540e2289f889de042
SHA256

767cc0a526a752424af4cb167d9c94faeaf3eebebbd04e11c1f7fd8ed5a903bf
SHA512

8919c247ab8fcf05a785b0dcc3b579fb7a7285aa6a2b46c7f2426857632d8f1de593e8e2e50f054adcf78a193fd32367bb41d9e4ae8a0a61adbfd03b67d4faa2
SSDEEP

3072:rR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu2:G25GgFny61mraQ

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 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
1736	2168	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 3056 wrote to memory of 2168	3056	rundll32.exe	30
PID 3056 wrote to memory of 2168	3056	rundll32.exe	30
PID 3056 wrote to memory of 2168	3056	rundll32.exe	30
PID 3056 wrote to memory of 2168	3056	rundll32.exe	30
PID 3056 wrote to memory of 2168	3056	rundll32.exe	30
PID 3056 wrote to memory of 2168	3056	rundll32.exe	30
PID 3056 wrote to memory of 2168	3056	rundll32.exe	30
PID 2168 wrote to memory of 1736	2168	rundll32.exe	31
PID 2168 wrote to memory of 1736	2168	rundll32.exe	31
PID 2168 wrote to memory of 1736	2168	rundll32.exe	31
PID 2168 wrote to memory of 1736	2168	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\767cc0a526a752424af4cb167d9c94faeaf3eebebbd04e11c1f7fd8ed5a903bf.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\767cc0a526a752424af4cb167d9c94faeaf3eebebbd04e11c1f7fd8ed5a903bf.dll,#1
  2⤵
  - Boot or Logon Autostart Execution: Port Monitors
  - Sets service image path in registry
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2168 -s 228
    3⤵
    - Program crash
    PID:1736