Overview

overview

10

Static

static

3

JigsawRansomware.exe

windows10-2004-x64

10

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General

  • Target
    JigsawRansomware.exe
  • Size 1.5MB
  • Sample240326-bbr26abb38
  • SHA256 d4a11d4ae09a5ba61ef7a924f6137e8ae75749ee70d09ffd68eb6c8fb89c0725
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
agentteslajigsawkeyloggerpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target
      JigsawRansomware.exe
    • Size 1.5MB
    • SHA256 d4a11d4ae09a5ba61ef7a924f6137e8ae75749ee70d09ffd68eb6c8fb89c0725
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    agentteslajigsawkeyloggerpersistenceransomwarespywarestealertrojan

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

      keyloggertrojanstealerspywareagenttesla

    • Jigsaw Ransomware

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

      ransomwarejigsaw

    • AgentTesla payload

    • Renames multiple (3732) 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
    behavioral1

MITRE ATT&CK Enterprise v15

Tasks