ba23ee09e603d260c4cd458e1269c79cce7988d82f41494f7639a5740c13065e

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/03/2025, 06:04

Target

ba23ee09e603d260c4cd458e1269c79cce7988d82f41494f7639a5740c13065e.dll
Size

137KB
MD5

306adff5489da3f19eb8344d2d9f7aa2
SHA1

b839577d3c900b7065a0a6b91ac38aeda0b6b7c0
SHA256

ba23ee09e603d260c4cd458e1269c79cce7988d82f41494f7639a5740c13065e
SHA512

50e07ffa6dde7ce861573f750779656115ccc04f852339ea26f804771af82662163c41a8b283bf1126eede44437ed461ff6d5e4c6124a9d5eaeffca5e9021f79
SSDEEP

3072:TR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUus:+25GgFny61mraC

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
2408	2060	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 3060 wrote to memory of 2060	3060	rundll32.exe	30
PID 3060 wrote to memory of 2060	3060	rundll32.exe	30
PID 3060 wrote to memory of 2060	3060	rundll32.exe	30
PID 3060 wrote to memory of 2060	3060	rundll32.exe	30
PID 3060 wrote to memory of 2060	3060	rundll32.exe	30
PID 3060 wrote to memory of 2060	3060	rundll32.exe	30
PID 3060 wrote to memory of 2060	3060	rundll32.exe	30
PID 2060 wrote to memory of 2408	2060	rundll32.exe	31
PID 2060 wrote to memory of 2408	2060	rundll32.exe	31
PID 2060 wrote to memory of 2408	2060	rundll32.exe	31
PID 2060 wrote to memory of 2408	2060	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba23ee09e603d260c4cd458e1269c79cce7988d82f41494f7639a5740c13065e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba23ee09e603d260c4cd458e1269c79cce7988d82f41494f7639a5740c13065e.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:2060
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2060 -s 228
    3⤵
    - Program crash
    PID:2408