58121e56dd126029cfbd2c67e90aca19f8d55d1158dcf41c0e50b48fce379928

Analysis

max time kernel
91s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
01/03/2025, 23:30

Target

58121e56dd126029cfbd2c67e90aca19f8d55d1158dcf41c0e50b48fce379928.dll
Size

137KB
MD5

74cae88b7467545488186afc7e762960
SHA1

8d694d4416586996995832d13769d07837ab4f5e
SHA256

58121e56dd126029cfbd2c67e90aca19f8d55d1158dcf41c0e50b48fce379928
SHA512

6aef2ffa6cad979374e517e64063933ec66366368a4204caa60d53e37a9aecb430c2fa8cde811ece72d34fe3dea804709e40eb9f3b7d8fd600efb413db78e825
SSDEEP

3072:+R02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuB:r25GgFny61mraj

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
2800	2752	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 2668 wrote to memory of 2752	2668	rundll32.exe	30
PID 2668 wrote to memory of 2752	2668	rundll32.exe	30
PID 2668 wrote to memory of 2752	2668	rundll32.exe	30
PID 2668 wrote to memory of 2752	2668	rundll32.exe	30
PID 2668 wrote to memory of 2752	2668	rundll32.exe	30
PID 2668 wrote to memory of 2752	2668	rundll32.exe	30
PID 2668 wrote to memory of 2752	2668	rundll32.exe	30
PID 2752 wrote to memory of 2800	2752	rundll32.exe	31
PID 2752 wrote to memory of 2800	2752	rundll32.exe	31
PID 2752 wrote to memory of 2800	2752	rundll32.exe	31
PID 2752 wrote to memory of 2800	2752	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\58121e56dd126029cfbd2c67e90aca19f8d55d1158dcf41c0e50b48fce379928.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\58121e56dd126029cfbd2c67e90aca19f8d55d1158dcf41c0e50b48fce379928.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:2752
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 232
    3⤵
    - Program crash
    PID:2800

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2776