7c188d1a10d54a2ae7c73edf791fc3eda0091d5c2e417a34d2f2e8703e1e7ff0

Analysis

max time kernel
95s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2024, 00:04

Target

7c188d1a10d54a2ae7c73edf791fc3eda0091d5c2e417a34d2f2e8703e1e7ff0.dll
Size

137KB
MD5

437dacfde86b74e7192a6171f4f11612
SHA1

f4ad766acc5bdb200b4013431fbf1414aaf10053
SHA256

7c188d1a10d54a2ae7c73edf791fc3eda0091d5c2e417a34d2f2e8703e1e7ff0
SHA512

0f30628a4c31baab7cbb95b11971aa14e199786ac970c21dea939e0df2b5dc1d97ba00d14166b4f6dd3aa116452a2f563ef4a6b9c2bb56fe56d4a7ddd043e498
SSDEEP

3072:eR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUua:L25GgFny61mraQ

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
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	rundll32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	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
2352	2072	WerFault.exe	83

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 3 IoCs

description	pid	Process	procid_target
PID 4216 wrote to memory of 2072	4216	rundll32.exe	83
PID 4216 wrote to memory of 2072	4216	rundll32.exe	83
PID 4216 wrote to memory of 2072	4216	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7c188d1a10d54a2ae7c73edf791fc3eda0091d5c2e417a34d2f2e8703e1e7ff0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4216
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7c188d1a10d54a2ae7c73edf791fc3eda0091d5c2e417a34d2f2e8703e1e7ff0.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
  PID:2072
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 616
    3⤵
    - Program crash
    PID:2352