Overview

overview

10

Static

static

3

first_sample.exe

windows7-x64

10

first_sample.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    first_sample

  • Size

    148KB

  • Sample

    250316-l7mgna1px3

  • MD5

    dfcb8a4380fcb5652aefe9d3093b9f3b

  • SHA1

    25dfbba6d7b1dd749b47a4becd56245df167226f

  • SHA256

    0f5a2e2efc1284a209edf473789e3ae46ac05c72d0fc1eaea809b400138af5d6

  • SHA512

    9c817a5ee0d246219a395156ecc52ed1b9414d6c533d521222ca9b7fcbb49f24dc72721d7c28ac41046d10b6d173211e78150517fbfafa07949d80895b5ceaff

  • SSDEEP

    3072:PYNTpyq6PtG8vSSdq1MjRlQV6F6aClbgsSGOi:PGcPtG8vv6gxKbgs

Score
10/10
jigsawpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      first_sample

    • Size

      148KB

    • MD5

      dfcb8a4380fcb5652aefe9d3093b9f3b

    • SHA1

      25dfbba6d7b1dd749b47a4becd56245df167226f

    • SHA256

      0f5a2e2efc1284a209edf473789e3ae46ac05c72d0fc1eaea809b400138af5d6

    • SHA512

      9c817a5ee0d246219a395156ecc52ed1b9414d6c533d521222ca9b7fcbb49f24dc72721d7c28ac41046d10b6d173211e78150517fbfafa07949d80895b5ceaff

    • SSDEEP

      3072:PYNTpyq6PtG8vSSdq1MjRlQV6F6aClbgsSGOi:PGcPtG8vv6gxKbgs

    Score
    10/10
    jigsawpersistenceransomwarespywarestealer

    • 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 (2000) 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
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks