26c1bdfed569159ce8ade627e1ae7f49ac27735482e5e67956bc875e9ebe8a38

Analysis

max time kernel
87s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/01/2025, 15:37

Target

26c1bdfed569159ce8ade627e1ae7f49ac27735482e5e67956bc875e9ebe8a38N.dll
Size

137KB
MD5

6104d88fe032378df850355ad139cbd0
SHA1

f0302259f1a1c23905a36127d744b426967b2023
SHA256

26c1bdfed569159ce8ade627e1ae7f49ac27735482e5e67956bc875e9ebe8a38
SHA512

633c328daf49778ad55a73df6be6c85fa7fd7eaa5629b9936642404867fe66bf1374e5d03a37dd8b3120b680cf8909b1c25928323054a150411955ea046fc28f
SSDEEP

3072:8R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuX:J25GgFny61mraZ

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
2904	2900	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 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2900 wrote to memory of 2904	2900	rundll32.exe	32
PID 2900 wrote to memory of 2904	2900	rundll32.exe	32
PID 2900 wrote to memory of 2904	2900	rundll32.exe	32
PID 2900 wrote to memory of 2904	2900	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\26c1bdfed569159ce8ade627e1ae7f49ac27735482e5e67956bc875e9ebe8a38N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\26c1bdfed569159ce8ade627e1ae7f49ac27735482e5e67956bc875e9ebe8a38N.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:2900
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2900 -s 228
    3⤵
    - Program crash
    PID:2904

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:1988