575674e2fb7bd513c65dc1f6975e97ff1af84c92892bcb52e5ffa87a8f777efc

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/03/2025, 02:16

Target

575674e2fb7bd513c65dc1f6975e97ff1af84c92892bcb52e5ffa87a8f777efc.dll
Size

137KB
MD5

6a33b6e87a17a8a45907adc675c01cf4
SHA1

4b8ca530574f775086e9c5b7a02a3856453c7d24
SHA256

575674e2fb7bd513c65dc1f6975e97ff1af84c92892bcb52e5ffa87a8f777efc
SHA512

60f4ccea934a2b76e75d341654de517583ec7f31a4e03e17608bad1f2a6fed80b1c154856d81ffecf780371518c4cc8fe3b102d29747659efe464af016e71cbd
SSDEEP

3072:WR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuI:T25GgFny61mra6

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2064	2260	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 2492 wrote to memory of 2260	2492	rundll32.exe	30
PID 2492 wrote to memory of 2260	2492	rundll32.exe	30
PID 2492 wrote to memory of 2260	2492	rundll32.exe	30
PID 2492 wrote to memory of 2260	2492	rundll32.exe	30
PID 2492 wrote to memory of 2260	2492	rundll32.exe	30
PID 2492 wrote to memory of 2260	2492	rundll32.exe	30
PID 2492 wrote to memory of 2260	2492	rundll32.exe	30
PID 2260 wrote to memory of 2064	2260	rundll32.exe	31
PID 2260 wrote to memory of 2064	2260	rundll32.exe	31
PID 2260 wrote to memory of 2064	2260	rundll32.exe	31
PID 2260 wrote to memory of 2064	2260	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\575674e2fb7bd513c65dc1f6975e97ff1af84c92892bcb52e5ffa87a8f777efc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\575674e2fb7bd513c65dc1f6975e97ff1af84c92892bcb52e5ffa87a8f777efc.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:2260
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2260 -s 228
    3⤵
    - Program crash
    PID:2064