Overview

overview

10

Static

static

10

Catto.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    Catto.exe
  • Size 343KB
  • Sample250404-1z52csvze1
  • SHA256 11e508b38307c2ee091406449b78fc1e5cae7d48ac40e4fc3339cb31a4d52754
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
chaosransomwarespywarestealer

Malware Config

Targets

    • Target
      Catto.exe
    • Size 343KB
    • SHA256 11e508b38307c2ee091406449b78fc1e5cae7d48ac40e4fc3339cb31a4d52754
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    chaosransomwarespywarestealer

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • Chaos family

      chaos

    • Renames multiple (195) 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.

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Drops desktop.ini file(s)

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1

MITRE ATT&CK Enterprise v15

Tasks