6b7c4ce5419e7cde80856a85559203dca5219d05115cdd6c1598f2e789149c34

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
08-08-2024 13:44

Target

wwlib.dll
Size

25KB
MD5

8ae76848a8f5f80bccf089c8aaec6d94
SHA1

3a47a3e498445041373d323192f55219b6842a6d
SHA256

8dc3f6179120f03fd6cb2299dbc94425451d84d6852b801a313a39e9df5d9b1a
SHA512

b6152c993d8dc6a2955abecc08513f31994bb1d6ba623aec48faaa1f35195245bc1d81c14e05dcb4ebe6fd3f19e8239278fa74cd31c88386f4d236be9a824851
SSDEEP

384:YW4wIDLBUBx6IE9x7LUEr1mRP0jqqVEL/j/y/rSM60fnKE6Ifh61E8iBpjhD7gsW:/Iv+ewvWKOfs1EDlD7ny

Score

10^/10

persistence

Modifies WinLogon for persistence 2 TTPs 1 IoCs

Winlogon Helper DLL

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, explorer.exe /e,/root,%PSH% -nop -w h \"Start-Process -N -F $env:SYSB -A $env:TPM\""	rundll32.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task

pid	Process
2560	SCHTASKS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2560	2524	rundll32.exe	30
PID 2524 wrote to memory of 2560	2524	rundll32.exe	30
PID 2524 wrote to memory of 2560	2524	rundll32.exe	30

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\wwlib.dll,#1
1⤵
- Modifies WinLogon for persistence
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\system32\SCHTASKS.exe
  SCHTASKS /CREATE /f /TN "OneDriver Reporting Task" /TR "shutdown /l /f" /SC WEEKLY /d TUE,FRI /ST 13:25
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2560