245ba0351080ccf876cbc8458ea9c656ba0ed0a7cfee34a1775df1d22f27a26b

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11/09/2024, 23:45

Target

48e40980c5b46894f2558b4c64a8ba10N.dll
Size

137KB
MD5

48e40980c5b46894f2558b4c64a8ba10
SHA1

a08f4a13f6f406694c59cf58928afdcf2b63bfb1
SHA256

245ba0351080ccf876cbc8458ea9c656ba0ed0a7cfee34a1775df1d22f27a26b
SHA512

198d6d01ac3977c00ad61ecbd366dc541bfbdaf9a693354b7e8d3e0612d8e9b4f7767f1c2ea3fc842aad7d632321c9a1faaa37aa9f49aafe230513d473e10132
SSDEEP

3072:ER02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuo:h25GgFny61mraK

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
3924	3488	WerFault.exe	83

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 3 IoCs

description	pid	Process	procid_target
PID 1408 wrote to memory of 3488	1408	rundll32.exe	83
PID 1408 wrote to memory of 3488	1408	rundll32.exe	83
PID 1408 wrote to memory of 3488	1408	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\48e40980c5b46894f2558b4c64a8ba10N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\48e40980c5b46894f2558b4c64a8ba10N.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
  PID:3488
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 616
    3⤵
    - Program crash
    PID:3924