Overview

overview

10

Static

static

Win7: 5min timeout

windows7_x64

10

Win10: 5min timeout

windows10_x64

10

Analysis

  • max time kernel
    300s
  • max time network
    271s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    05/11/2020, 14:36

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General

  • Target
    5cc851c0bce31e62a7c293c01117e5d80383b97ce97c040f2c08cfaa29380037.exe
  • Size 676KB
  • Sample201105-d4pfdbrzjs
  • SHA256 5cc851c0bce31e62a7c293c01117e5d80383b97ce97c040f2c08cfaa29380037
  • MD5 SHA1 SHA512
Score
10/10
jigsawpersistenceransomwarespyware

Malware Config

Signatures

  • Jigsaw Ransomware

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

    ransomwarejigsaw
  • Executes dropped EXE 1 IoCs
  • Modifies extensions of user files 4 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops file in Program Files directory 15229 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5cc851c0bce31e62a7c293c01117e5d80383b97ce97c040f2c08cfaa29380037.exe
    "C:\Users\Admin\AppData\Local\Temp\5cc851c0bce31e62a7c293c01117e5d80383b97ce97c040f2c08cfaa29380037.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\Users\Admin\AppData\Local\chrme\chrome.exe
      "C:\Users\Admin\AppData\Local\chrme\chrome.exe" C:\Users\Admin\AppData\Local\Temp\5cc851c0bce31e62a7c293c01117e5d80383b97ce97c040f2c08cfaa29380037.exe
      2⤵
      • Executes dropped EXE
      • Modifies extensions of user files
      • Drops file in Program Files directory
      PID:4032

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/2868-0-0x00007FFE304A0000-0x00007FFE30E40000-memory.dmp
        Download

        memory/4032-4-0x00007FFE304A0000-0x00007FFE30E40000-memory.dmp
        Download