Overview

overview

10

Static

static

1

jigsaw.exe

windows7-x64

10

jigsaw.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Ransomware.Jigsaw (1).zip

  • Size

    239KB

  • Sample

    230417-zfe56ahf9s

  • MD5

    3ad6374a3558149d09d74e6af72344e3

  • SHA1

    e7be9f22578027fc0b6ddb94c09b245ee8ce1620

  • SHA256

    86a391fe7a237f4f17846c53d71e45820411d1a9a6e0c16f22a11ebc491ff9ff

  • SHA512

    21c21b36be200a195bfa648e228c64e52262b06d19d294446b8a544ff1d81f81eb2af74ddbdebc59915168db5dba76d0f0585e83471801d9ee37e59af0620720

  • SSDEEP

    3072:p7ykj3uuY4NsJD7kPdSRQLqas/pkPm9jvkEL60Uf7k2BgS6/aFybrNN5ZAdNstk7:p7ym3VNA7w8R5/rxv7O0yng0UtVw5NJ

Score
10/10
jigsawpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      jigsaw

    • Size

      283KB

    • MD5

      2773e3dc59472296cb0024ba7715a64e

    • SHA1

      27d99fbca067f478bb91cdbcb92f13a828b00859

    • SHA256

      3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7

    • SHA512

      6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262

    • SSDEEP

      6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX

    Score
    10/10
    jigsawpersistenceransomwarespywarestealer

    • Jigsaw Ransomware

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

      ransomwarejigsaw

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks