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Overview

overview

10

Static

static

1

URLScan

urlscan

https://github.com/P...

windows10-ltsc 2021-x64

10

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General

  • Target

    https://github.com/Pyran1/MalwareCollection/tree/master/Ransomware

  • Sample

    250226-ws9zhsymy2

Score
10/10
jigsawdiscoverypersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      https://github.com/Pyran1/MalwareCollection/tree/master/Ransomware

    Score
    10/10
    jigsawdiscoverypersistenceransomwarespywarestealer

    • Jigsaw Ransomware

      Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.

      ransomwarejigsaw

    • Jigsaw family

      jigsaw

    • Renames multiple (3577) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks