6648830b5857b6d93d7fa28d980641ff4075c9883da2ec2880f0c7e6db85516a

Analysis

max time kernel
85s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/01/2025, 11:58

Target

6648830b5857b6d93d7fa28d980641ff4075c9883da2ec2880f0c7e6db85516aN.dll
Size

137KB
MD5

178d326489f814cb0b52b43e87c5d2c0
SHA1

4d7557e3fd98bd5cbba57747361709126d0cc04d
SHA256

6648830b5857b6d93d7fa28d980641ff4075c9883da2ec2880f0c7e6db85516a
SHA512

fd221921a17f88395b1c8e5468e146ef9c3110636d504157f9b951e816a7a9d1a368fa9c49acb441b2681aa36ec3553e14f187d02e2397fdba130854fd88d1a3
SSDEEP

3072:SR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu1:325GgFny61mraP

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
2692	2084	WerFault.exe	31

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 2376 wrote to memory of 2084	2376	rundll32.exe	31
PID 2376 wrote to memory of 2084	2376	rundll32.exe	31
PID 2376 wrote to memory of 2084	2376	rundll32.exe	31
PID 2376 wrote to memory of 2084	2376	rundll32.exe	31
PID 2376 wrote to memory of 2084	2376	rundll32.exe	31
PID 2376 wrote to memory of 2084	2376	rundll32.exe	31
PID 2376 wrote to memory of 2084	2376	rundll32.exe	31
PID 2084 wrote to memory of 2692	2084	rundll32.exe	32
PID 2084 wrote to memory of 2692	2084	rundll32.exe	32
PID 2084 wrote to memory of 2692	2084	rundll32.exe	32
PID 2084 wrote to memory of 2692	2084	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6648830b5857b6d93d7fa28d980641ff4075c9883da2ec2880f0c7e6db85516aN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6648830b5857b6d93d7fa28d980641ff4075c9883da2ec2880f0c7e6db85516aN.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:2084
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 228
    3⤵
    - Program crash
    PID:2692