1b98c3dab001fc358ba20cfa33e89dcd4c0357c6a407c9c2be9a34317cb1735f

Analysis

max time kernel
14s
max time network
20s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01/03/2025, 20:30

Target

1b98c3dab001fc358ba20cfa33e89dcd4c0357c6a407c9c2be9a34317cb1735f.dll
Size

137KB
MD5

0630e8881baf69981400461d1790f422
SHA1

2f118fa748268b3d15ae7aa1b2d8a8205b26e048
SHA256

1b98c3dab001fc358ba20cfa33e89dcd4c0357c6a407c9c2be9a34317cb1735f
SHA512

eaae0b54008902c415308c5d0db239e452f15ce062e40c843ae13d8a902b3dfeae12a6fc9cf7add81e1d43564e159a7d89bfaf79981ee5c128ee5b16ac394824
SSDEEP

3072:XR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuP:q25GgFny61mraF

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 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2028	2008	WerFault.exe	29

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 108 wrote to memory of 2008	108	rundll32.exe	29
PID 108 wrote to memory of 2008	108	rundll32.exe	29
PID 108 wrote to memory of 2008	108	rundll32.exe	29
PID 108 wrote to memory of 2008	108	rundll32.exe	29
PID 108 wrote to memory of 2008	108	rundll32.exe	29
PID 108 wrote to memory of 2008	108	rundll32.exe	29
PID 108 wrote to memory of 2008	108	rundll32.exe	29
PID 2008 wrote to memory of 2028	2008	rundll32.exe	30
PID 2008 wrote to memory of 2028	2008	rundll32.exe	30
PID 2008 wrote to memory of 2028	2008	rundll32.exe	30
PID 2008 wrote to memory of 2028	2008	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1b98c3dab001fc358ba20cfa33e89dcd4c0357c6a407c9c2be9a34317cb1735f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:108
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1b98c3dab001fc358ba20cfa33e89dcd4c0357c6a407c9c2be9a34317cb1735f.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:2008
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 232
    3⤵
    - Program crash
    PID:2028