054f6b9acce873cbd0267571c8d106897915db251cef4564dc8278a355efd922

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/03/2025, 19:13

Target

054f6b9acce873cbd0267571c8d106897915db251cef4564dc8278a355efd922.dll
Size

137KB
MD5

13df48718f22e45e34ce0d63e4bcc85b
SHA1

cedd186cac1ce45eeee69e2521e5bd43f134b1d3
SHA256

054f6b9acce873cbd0267571c8d106897915db251cef4564dc8278a355efd922
SHA512

2acb5bc0eb666121aa6f8ea4741e0f2e657477935870fc2e825f3ed7c23f7dda9a52986bc77a913a57e22afe7a3aea2839905527935eee6694a88c41be0e5282
SSDEEP

3072:mR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu+:D25GgFny61mra0

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
1720	2284	WerFault.exe	28

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 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2284 wrote to memory of 1720	2284	rundll32.exe	29
PID 2284 wrote to memory of 1720	2284	rundll32.exe	29
PID 2284 wrote to memory of 1720	2284	rundll32.exe	29
PID 2284 wrote to memory of 1720	2284	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\054f6b9acce873cbd0267571c8d106897915db251cef4564dc8278a355efd922.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\054f6b9acce873cbd0267571c8d106897915db251cef4564dc8278a355efd922.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:2284
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 228
    3⤵
    - Program crash
    PID:1720