d089a726b007289ce8dd9cb9dfd9a3a19859a9933effbfe8d4e2ef2dbdf9b0c8

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
11/03/2025, 05:15

Target

d089a726b007289ce8dd9cb9dfd9a3a19859a9933effbfe8d4e2ef2dbdf9b0c8.dll
Size

137KB
MD5

e81583a76dba0d62b76b374aaadc6d11
SHA1

da774dc96f417fb904f87a2a1ff31a55c503f901
SHA256

d089a726b007289ce8dd9cb9dfd9a3a19859a9933effbfe8d4e2ef2dbdf9b0c8
SHA512

f0c97397f76ec715bdabf1cb5cc64890f6c73e9fff80437cc1b5ec8fcde1f974ad1eca564ab7a1143ea158e9332b67765cd688a6de825e6c101322e5b4783752
SSDEEP

3072:xR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu:c25GgFny61mra

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 created	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File opened for modification	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2528	688	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 2164 wrote to memory of 688	2164	rundll32.exe	30
PID 2164 wrote to memory of 688	2164	rundll32.exe	30
PID 2164 wrote to memory of 688	2164	rundll32.exe	30
PID 2164 wrote to memory of 688	2164	rundll32.exe	30
PID 2164 wrote to memory of 688	2164	rundll32.exe	30
PID 2164 wrote to memory of 688	2164	rundll32.exe	30
PID 2164 wrote to memory of 688	2164	rundll32.exe	30
PID 688 wrote to memory of 2528	688	rundll32.exe	31
PID 688 wrote to memory of 2528	688	rundll32.exe	31
PID 688 wrote to memory of 2528	688	rundll32.exe	31
PID 688 wrote to memory of 2528	688	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d089a726b007289ce8dd9cb9dfd9a3a19859a9933effbfe8d4e2ef2dbdf9b0c8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d089a726b007289ce8dd9cb9dfd9a3a19859a9933effbfe8d4e2ef2dbdf9b0c8.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:688
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 688 -s 228
    3⤵
    - Program crash
    PID:2528