f0e2669109f9afda4b88e0ad1966274fa1ae997d37973385925ae17221d413b2

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/03/2025, 06:27

Target

f0e2669109f9afda4b88e0ad1966274fa1ae997d37973385925ae17221d413b2.dll
Size

137KB
MD5

9ad6bdcb654df28a4f781d5faf3a0def
SHA1

c2848b506a1ebba820973ea6a77adc9c2546a547
SHA256

f0e2669109f9afda4b88e0ad1966274fa1ae997d37973385925ae17221d413b2
SHA512

b48d8af65e83e504a8dcc04562dfbb5bc1bf1972c2425d72196beb147bee9a01ee4b3ba38433b0a5d87b5e653ffab3241e37408cc50d2df6c46a6245ad3824b0
SSDEEP

3072:RR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuw:825GgFny61mrai

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
1680	2092	WerFault.exe	28

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 2960 wrote to memory of 2092	2960	rundll32.exe	28
PID 2960 wrote to memory of 2092	2960	rundll32.exe	28
PID 2960 wrote to memory of 2092	2960	rundll32.exe	28
PID 2960 wrote to memory of 2092	2960	rundll32.exe	28
PID 2960 wrote to memory of 2092	2960	rundll32.exe	28
PID 2960 wrote to memory of 2092	2960	rundll32.exe	28
PID 2960 wrote to memory of 2092	2960	rundll32.exe	28
PID 2092 wrote to memory of 1680	2092	rundll32.exe	29
PID 2092 wrote to memory of 1680	2092	rundll32.exe	29
PID 2092 wrote to memory of 1680	2092	rundll32.exe	29
PID 2092 wrote to memory of 1680	2092	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f0e2669109f9afda4b88e0ad1966274fa1ae997d37973385925ae17221d413b2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f0e2669109f9afda4b88e0ad1966274fa1ae997d37973385925ae17221d413b2.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:2092
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 228
    3⤵
    - Program crash
    PID:1680

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2644