19fce3c109d4a4ccd903b7eced7155a33613c831b4b28e0fd205f2b152988ce3

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
09/03/2025, 20:41

Target

19fce3c109d4a4ccd903b7eced7155a33613c831b4b28e0fd205f2b152988ce3.dll
Size

137KB
MD5

9cae4e5f7573c7d803078067ae0d2e17
SHA1

92196d7058c03006b3eff01edfcc2944506e1143
SHA256

19fce3c109d4a4ccd903b7eced7155a33613c831b4b28e0fd205f2b152988ce3
SHA512

f96cf4acac355018fe1cb58b06e9412b16722d0d79e3832e9b02357bcfdc9ba87d68e11ddae97c440336dea930eb056ac1ddb0e467dcdb31dbc9e2956db65b91
SSDEEP

3072:2R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuL/:z25GgFny61mrap

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
2524	3052	WerFault.exe

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 2780 wrote to memory of 3052	2780	rundll32.exe	30
PID 2780 wrote to memory of 3052	2780	rundll32.exe	30
PID 2780 wrote to memory of 3052	2780	rundll32.exe	30
PID 2780 wrote to memory of 3052	2780	rundll32.exe	30
PID 2780 wrote to memory of 3052	2780	rundll32.exe	30
PID 2780 wrote to memory of 3052	2780	rundll32.exe	30
PID 2780 wrote to memory of 3052	2780	rundll32.exe	30
PID 3052 wrote to memory of 2524	3052	rundll32.exe	31
PID 3052 wrote to memory of 2524	3052	rundll32.exe	31
PID 3052 wrote to memory of 2524	3052	rundll32.exe	31
PID 3052 wrote to memory of 2524	3052	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\19fce3c109d4a4ccd903b7eced7155a33613c831b4b28e0fd205f2b152988ce3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\19fce3c109d4a4ccd903b7eced7155a33613c831b4b28e0fd205f2b152988ce3.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:3052
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3052 -s 228
    3⤵
    - Program crash
    PID:2524

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2836