Overview

overview

10

Static

static

3

JigsawRansomware.exe

windows11-21h2-x64

10

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General

  • Target

    JigsawRansomware.exe

  • Size

    1.5MB

  • Sample

    240326-a65fasbb24

  • MD5

    7c85ceb084b23493a6ef7fc94a25451a

  • SHA1

    973b492ce9420184ac1922c1cf933c5e4e400270

  • SHA256

    2488fac944393b2110bc68adf52434c6b1d0e85f70925f34c7728c124d63bf1d

  • SHA512

    b27a7e8c87fc6102e67e384e166e336a971c8f850641445036e4e8c05f8d30c0a9506bfa95dbd664a7dc43b296b3ebd8c0e15351b320413e40bb9ba3a5c42956

  • SSDEEP

    49152:X70nS4pfVkqgy6r3a+kqXfd+/9A9TVanieKd:X7K5JEyUa+kqXf0FoVW

Score
10/10
jigsawpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      JigsawRansomware.exe

    • Size

      1.5MB

    • MD5

      7c85ceb084b23493a6ef7fc94a25451a

    • SHA1

      973b492ce9420184ac1922c1cf933c5e4e400270

    • SHA256

      2488fac944393b2110bc68adf52434c6b1d0e85f70925f34c7728c124d63bf1d

    • SHA512

      b27a7e8c87fc6102e67e384e166e336a971c8f850641445036e4e8c05f8d30c0a9506bfa95dbd664a7dc43b296b3ebd8c0e15351b320413e40bb9ba3a5c42956

    • SSDEEP

      49152:X70nS4pfVkqgy6r3a+kqXfd+/9A9TVanieKd:X7K5JEyUa+kqXf0FoVW

    Score
    10/10
    jigsawpersistenceransomwarespywarestealer

    • Jigsaw Ransomware

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

      ransomwarejigsaw

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Renames multiple (1474) 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

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks