364e4f8de967108c603b0c5885e16c429494604ceee042b56a9f3555bb08a12b

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17/10/2024, 20:37

Target

364e4f8de967108c603b0c5885e16c429494604ceee042b56a9f3555bb08a12b.dll
Size

137KB
MD5

b3cb62f1c254e588f22e8f3d243a0703
SHA1

6b96cc0b38f2f8e601a5eab253903e0429149e9c
SHA256

364e4f8de967108c603b0c5885e16c429494604ceee042b56a9f3555bb08a12b
SHA512

53fd8dafe4a65ec537e8f53e2ae08012501d863e42dd566da93ddcf3c3b2a6021bfaf432caa20e63f96b41a9d981aab6b946932130c4f5b9f6cbc6dbc467ce93
SSDEEP

3072:bR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUud:W25GgFny61mraj

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
2668	1932	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 296 wrote to memory of 1932	296	rundll32.exe	30
PID 296 wrote to memory of 1932	296	rundll32.exe	30
PID 296 wrote to memory of 1932	296	rundll32.exe	30
PID 296 wrote to memory of 1932	296	rundll32.exe	30
PID 296 wrote to memory of 1932	296	rundll32.exe	30
PID 296 wrote to memory of 1932	296	rundll32.exe	30
PID 296 wrote to memory of 1932	296	rundll32.exe	30
PID 1932 wrote to memory of 2668	1932	rundll32.exe	31
PID 1932 wrote to memory of 2668	1932	rundll32.exe	31
PID 1932 wrote to memory of 2668	1932	rundll32.exe	31
PID 1932 wrote to memory of 2668	1932	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\364e4f8de967108c603b0c5885e16c429494604ceee042b56a9f3555bb08a12b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:296
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\364e4f8de967108c603b0c5885e16c429494604ceee042b56a9f3555bb08a12b.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:1932
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 228
    3⤵
    - Program crash
    PID:2668