53d0da8f7f0f298ea57ebd321464068e88278736e29fcdde3372060d8fac2746

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/03/2025, 08:50

Target

53d0da8f7f0f298ea57ebd321464068e88278736e29fcdde3372060d8fac2746.dll
Size

137KB
MD5

9f38e75a40a24518ffba86aedb543fde
SHA1

8400349d529280a634318599e4f3c6aad2435909
SHA256

53d0da8f7f0f298ea57ebd321464068e88278736e29fcdde3372060d8fac2746
SHA512

6d14bd3713ba0da150148efc8bb3c79504851f88ce0e2c1bf128a99f6052d1c02d19ffd081bcb30d0ab028899cebcdf8bd83e817a4da426826d8ac23f24b0b89
SSDEEP

3072:jR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuD:u25GgFny61mrah

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
1816	1904	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 2520 wrote to memory of 1904	2520	rundll32.exe	30
PID 2520 wrote to memory of 1904	2520	rundll32.exe	30
PID 2520 wrote to memory of 1904	2520	rundll32.exe	30
PID 2520 wrote to memory of 1904	2520	rundll32.exe	30
PID 2520 wrote to memory of 1904	2520	rundll32.exe	30
PID 2520 wrote to memory of 1904	2520	rundll32.exe	30
PID 2520 wrote to memory of 1904	2520	rundll32.exe	30
PID 1904 wrote to memory of 1816	1904	rundll32.exe	31
PID 1904 wrote to memory of 1816	1904	rundll32.exe	31
PID 1904 wrote to memory of 1816	1904	rundll32.exe	31
PID 1904 wrote to memory of 1816	1904	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\53d0da8f7f0f298ea57ebd321464068e88278736e29fcdde3372060d8fac2746.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\53d0da8f7f0f298ea57ebd321464068e88278736e29fcdde3372060d8fac2746.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:1904
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 228
    3⤵
    - Program crash
    PID:1816