40d7592a80cf1364d3fb9a594cdf00f38a456adf95875c76d9b2e8b4df5254d9

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
27-01-2025 02:07

Target

40d7592a80cf1364d3fb9a594cdf00f38a456adf95875c76d9b2e8b4df5254d9.dll
Size

137KB
MD5

ffcda82a0a39d19fb793e362bc532233
SHA1

d749d26e0f9551257cd8c3b728985fdd90f5b875
SHA256

40d7592a80cf1364d3fb9a594cdf00f38a456adf95875c76d9b2e8b4df5254d9
SHA512

f94f2dce66b1c6ea5345a37711dc8171eaded789952ab484d8c8fc683ff3013c4213f6e14c20dda48362ea003e3f7946347e2a2fb2c3f6ba63229cfc0a92c05a
SSDEEP

3072:NR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu8:A25GgFny61mraW

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2600	1720	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 2408 wrote to memory of 1720	2408	rundll32.exe	30
PID 2408 wrote to memory of 1720	2408	rundll32.exe	30
PID 2408 wrote to memory of 1720	2408	rundll32.exe	30
PID 2408 wrote to memory of 1720	2408	rundll32.exe	30
PID 2408 wrote to memory of 1720	2408	rundll32.exe	30
PID 2408 wrote to memory of 1720	2408	rundll32.exe	30
PID 2408 wrote to memory of 1720	2408	rundll32.exe	30
PID 1720 wrote to memory of 2600	1720	rundll32.exe	31
PID 1720 wrote to memory of 2600	1720	rundll32.exe	31
PID 1720 wrote to memory of 2600	1720	rundll32.exe	31
PID 1720 wrote to memory of 2600	1720	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\40d7592a80cf1364d3fb9a594cdf00f38a456adf95875c76d9b2e8b4df5254d9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\40d7592a80cf1364d3fb9a594cdf00f38a456adf95875c76d9b2e8b4df5254d9.dll,#1
  2⤵
  - Boot or Logon Autostart Execution: Port Monitors
  - Sets service image path in registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1720
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 228
    3⤵
    - Program crash
    PID:2600