7eee1b5b17cb6f339e7958f4fac8a63ce4346d7757f2414fda86296071fb81ca

Analysis

max time kernel
15s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-01-2025 05:47

Target

7eee1b5b17cb6f339e7958f4fac8a63ce4346d7757f2414fda86296071fb81caN.dll
Size

137KB
MD5

89fd821ae39d7b75ddd34258451cba50
SHA1

04efcc81195142d0453f6837a5999580a8506cc3
SHA256

7eee1b5b17cb6f339e7958f4fac8a63ce4346d7757f2414fda86296071fb81ca
SHA512

6b18ecdd3641c4080809ef041a77c6502385df72311fab605426f445df26f975ebdd6d1e2b069de023afb253e74f7de5932799613092250f4e607cbb0ab5c756
SSDEEP

3072:NR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu8:A25GgFny61mram

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
2420	2028	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 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 2028 wrote to memory of 2420	2028	rundll32.exe	31
PID 2028 wrote to memory of 2420	2028	rundll32.exe	31
PID 2028 wrote to memory of 2420	2028	rundll32.exe	31
PID 2028 wrote to memory of 2420	2028	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7eee1b5b17cb6f339e7958f4fac8a63ce4346d7757f2414fda86296071fb81caN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1356
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7eee1b5b17cb6f339e7958f4fac8a63ce4346d7757f2414fda86296071fb81caN.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:2028
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 232
    3⤵
    - Program crash
    PID:2420

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
1⤵
PID:2720