8b47e773a782361209f8adacc8d6aeefb595e1c13ae6813df7de01c20a15c91e

Analysis

max time kernel
144s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
16-02-2023 20:43

Target

MEMZ-master/NyanMBR/Source/Stage1/decompress.asm
Size

859B
MD5

c17fa191ca99b0eaf597f75e7544e3b9
SHA1

5460b16d9526e7c61699848e144fe724c7424bd1
SHA256

fcb1f43663ed9b3d12503cf328514a6879899286797d7c02f3f62f6a54458fcb
SHA512

63324a1609fd0e0682378df9b57f2ce02fedacac119dd190b0c9ff2b3a8a8a01a62ca000f8a9e65249a54ad7abdc1fbfc00c92a8d084c068cb129c769ff97053

Score

3^/10

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings	OpenWith.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4644	OpenWith.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\MEMZ-master\NyanMBR\Source\Stage1\decompress.asm
1⤵
- Modifies registry class
PID:2708

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact