Overview

overview

10

Static

static

802fef4d4f...f5.exe

windows7_x64

10

802fef4d4f...f5.exe

windows10-2004_x64

10

Resubmissions

09-10-2023 22:49

231009-2rvq4aba23 10

20-05-2022 18:15

220520-wvyn9sbff8 10

Analysis

  • max time kernel
    145s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 18:15

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General

  • Target

    802fef4d4f81c443497362711a7d8611741c30373c96d3229d699f225552a5f5.exe

  • Size

    78KB

  • MD5

    c5eff77db7eb62c4066247adfcd64797

  • SHA1

    acf5f645a1af2987c8a5398c12d03622feba9d35

  • SHA256

    802fef4d4f81c443497362711a7d8611741c30373c96d3229d699f225552a5f5

  • SHA512

    1610710c081064743dcfc9b7f5cdf42e63c9f78f3f55983c7f00ae6e60124489a5239cafb89375cc8e3d9d7696eeed7bb23f05dcda52644aafee651f69768dbd

Score
10/10
jigsawpersistenceransomwarespywarestealer

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 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\802fef4d4f81c443497362711a7d8611741c30373c96d3229d699f225552a5f5.exe
    "C:\Users\Admin\AppData\Local\Temp\802fef4d4f81c443497362711a7d8611741c30373c96d3229d699f225552a5f5.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3172
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\802fef4d4f81c443497362711a7d8611741c30373c96d3229d699f225552a5f5.exe
      2⤵
      • Executes dropped EXE
      • Modifies extensions of user files
      • Drops file in Program Files directory
      PID:4796

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
    Filesize

    78KB

    MD5

    c5eff77db7eb62c4066247adfcd64797

    SHA1

    acf5f645a1af2987c8a5398c12d03622feba9d35

    SHA256

    802fef4d4f81c443497362711a7d8611741c30373c96d3229d699f225552a5f5

    SHA512

    1610710c081064743dcfc9b7f5cdf42e63c9f78f3f55983c7f00ae6e60124489a5239cafb89375cc8e3d9d7696eeed7bb23f05dcda52644aafee651f69768dbd

    Download Submit

  • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
    Filesize

    78KB

    MD5

    c5eff77db7eb62c4066247adfcd64797

    SHA1

    acf5f645a1af2987c8a5398c12d03622feba9d35

    SHA256

    802fef4d4f81c443497362711a7d8611741c30373c96d3229d699f225552a5f5

    SHA512

    1610710c081064743dcfc9b7f5cdf42e63c9f78f3f55983c7f00ae6e60124489a5239cafb89375cc8e3d9d7696eeed7bb23f05dcda52644aafee651f69768dbd

    Download Submit

  • memory/3172-130-0x00007FFABB8E0000-0x00007FFABC316000-memory.dmp

    Filesize

    10.2MB

    Download

  • memory/4796-134-0x00007FFABB8E0000-0x00007FFABC316000-memory.dmp

    Filesize

    10.2MB

    Download