4823257b6e91618705a5f1459308365cd3392d2a5e9164e0318a5eee7173d717

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-04-2024 01:17

Target

Initialize.dll
Size

146KB
MD5

10cb1b6427829e32b05e87485218acf7
SHA1

a6a450edf2e1e00a3a1e74d9c496ac69927eb5bf
SHA256

2556c880c38f86f0b8addbb2edfb2a86e4a9cf1c78a5b9dc9783dada68a964dc
SHA512

6251356da8a3a07c4cbe644b459be386267c8c3abbdb215839fb204d770807634ea6d980cc9d2fb92cedd0a9bbb4202936feb553f833a6aa7d47d05f02085314
SSDEEP

3072:D1pLEMzM8zaEa0ao5C2BSK/dzmZLPWVSIrIOl4kyoVe2uBpZqNB+:dBa10H5C2BS6daZqrIO3veNcG

Score

6^/10

Enumerates connected drives 3 TTPs 21 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

Peripheral Device Discovery

System Information Discovery

Processes:

rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PhysicalDrive0 rundll32.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1704 wrote to memory of 2188	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 2188	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 2188	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 2188	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 2188	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 2188	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 2188	1704	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Initialize.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1704