Overview

overview

10

Static

static

1

UPDATED MA...ER.bat

windows11-21h2-x64

10

Sharing

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General

  • Target
    UPDATED MATCHA FIXER.bat
  • Size 10KB
  • Sample260312-wryvvsf12s
  • SHA256 296ad5cd01c0a5c1b4bd858f069eee553e5df28248e9ba197d6abc1e6e91fa2f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
jigsawadwarediscoverypersistenceransomwarespywarestealer

Malware Config

Targets

    • Target
      UPDATED MATCHA FIXER.bat
    • Size 10KB
    • SHA256 296ad5cd01c0a5c1b4bd858f069eee553e5df28248e9ba197d6abc1e6e91fa2f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    adwarediscoveryjigsawpersistenceransomwarespywarestealer

    • 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 (1689) files with added filename extension

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

      ransomware

    • 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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • ConfuserEx .NET packer

      Detects ConfuserEx .NET packer.

    behavioral1

MITRE ATT&CK Enterprise v16

Tasks