79948de1c302e8e8da5228d02b349a12d273a1bb31a926ecc45378121b732233

Analysis

max time kernel
74s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-01-2025 09:06

Target

79948de1c302e8e8da5228d02b349a12d273a1bb31a926ecc45378121b732233N.dll
Size

137KB
MD5

dbca827c5d1561a8fb1e8efb5d945f20
SHA1

43952475cbc756f3b6744b6b230cf986258683d1
SHA256

79948de1c302e8e8da5228d02b349a12d273a1bb31a926ecc45378121b732233
SHA512

e65da0299319e23c7214948aa305db3bc2f45f63f2651fad926da8aeddf4c8f68f59c2d31107e483a481abc3279a0541c73dc300106b0268ade294a7c8646c3f
SSDEEP

3072:BR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuj:M25GgFny61mra5

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
2440	2488	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 2320 wrote to memory of 2488	2320	rundll32.exe	31
PID 2320 wrote to memory of 2488	2320	rundll32.exe	31
PID 2320 wrote to memory of 2488	2320	rundll32.exe	31
PID 2320 wrote to memory of 2488	2320	rundll32.exe	31
PID 2320 wrote to memory of 2488	2320	rundll32.exe	31
PID 2320 wrote to memory of 2488	2320	rundll32.exe	31
PID 2320 wrote to memory of 2488	2320	rundll32.exe	31
PID 2488 wrote to memory of 2440	2488	rundll32.exe	32
PID 2488 wrote to memory of 2440	2488	rundll32.exe	32
PID 2488 wrote to memory of 2440	2488	rundll32.exe	32
PID 2488 wrote to memory of 2440	2488	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\79948de1c302e8e8da5228d02b349a12d273a1bb31a926ecc45378121b732233N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\79948de1c302e8e8da5228d02b349a12d273a1bb31a926ecc45378121b732233N.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:2488
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 228
    3⤵
    - Program crash
    PID:2440

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2180