83c23fc5b9c23e97b79c0e8a2fafd0fe61bcb8025b77bf1f56f60f8a5f90839c

Analysis

max time kernel
143s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2022 13:00

Target

yahooa/yahoob.class
Size

14KB
MD5

897c0fad6203d9ed63e7c65273eeabe9
SHA1

0be6107360e2ff74da262859934e324e736762c8
SHA256

a4ad2ec89c82ea910f7fd2579906d5e4d4b04344c3779c8f92844060d04b2d97
SHA512

4bebf27f4f10f52ffd9e7b3a1ad40f7b24e2f485e1064cec4e38ff7e51d3d75b127710fa6f48a84fe4bff66d965fd1cd62a408a06dbd69f71fdfe30a9fe5cc3f
SSDEEP

384:J4TVYQlL3XoG0E5/BCxH1z0lCzfMFL+XzE:+ZYQtYG0+SHZ0lCzfiK4

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-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	OpenWith.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
540	OpenWith.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\yahooa\yahoob.class
1⤵
- Modifies registry class
PID:4468

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact