82037cd9975f3d10a78a756e22ac8545ba3f4a1f645ad0041c1fcfd29e39d23a

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
04/03/2025, 02:25

Target

82037cd9975f3d10a78a756e22ac8545ba3f4a1f645ad0041c1fcfd29e39d23a.dll
Size

137KB
MD5

9715310a1d36c45d1f366b85c0f9a9ad
SHA1

9fb2099f4855730524862276b450f8d0f1bbe037
SHA256

82037cd9975f3d10a78a756e22ac8545ba3f4a1f645ad0041c1fcfd29e39d23a
SHA512

a2bd9cb035799bf9703d569e22dd7e6e15635aae7c27fbe4a92c1399f22ef4404783ccdb6786c74012d954dfe3468463dd965f64aad37c4aa164c9d1c9ddcd11
SSDEEP

3072:1R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUub:Y25GgFny61mraB

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
2284	1696	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 1620 wrote to memory of 1696	1620	rundll32.exe	30
PID 1620 wrote to memory of 1696	1620	rundll32.exe	30
PID 1620 wrote to memory of 1696	1620	rundll32.exe	30
PID 1620 wrote to memory of 1696	1620	rundll32.exe	30
PID 1620 wrote to memory of 1696	1620	rundll32.exe	30
PID 1620 wrote to memory of 1696	1620	rundll32.exe	30
PID 1620 wrote to memory of 1696	1620	rundll32.exe	30
PID 1696 wrote to memory of 2284	1696	rundll32.exe	31
PID 1696 wrote to memory of 2284	1696	rundll32.exe	31
PID 1696 wrote to memory of 2284	1696	rundll32.exe	31
PID 1696 wrote to memory of 2284	1696	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\82037cd9975f3d10a78a756e22ac8545ba3f4a1f645ad0041c1fcfd29e39d23a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\82037cd9975f3d10a78a756e22ac8545ba3f4a1f645ad0041c1fcfd29e39d23a.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:1696
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1696 -s 228
    3⤵
    - Program crash
    PID:2284