Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    07-06-2024 19:07

General

  • Target

    VirusShare_6984a724843fb60130a965a9fc317f2d.exe

  • Size

    1.5MB

  • MD5

    6984a724843fb60130a965a9fc317f2d

  • SHA1

    1ad9f8695c10adb69bdebd6bdc39b119707d500e

  • SHA256

    917809beb6566079dbb6b686107756d9eb3ff4543f6b41ef327cea7497118457

  • SHA512

    54d951c140df296b4fedff9225fee0e0660ee0f92a8790a7321da46334beb966a03a4d44bb0c9baac91cd53f1c81a84e7a35fc74aa67c8697590e87964e8420a

  • SSDEEP

    24576:yL6O/FARFbJT83lUK17IXe5E/VjyL048Gjnz/tARwh/jriCHT:uDFsfalN7Ae54yj1jz/tAC

Malware Config

Signatures

  • Jigsaw Ransomware

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

  • Renames multiple (1980) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

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

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VirusShare_6984a724843fb60130a965a9fc317f2d.exe
    "C:\Users\Admin\AppData\Local\Temp\VirusShare_6984a724843fb60130a965a9fc317f2d.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\VirusShare_6984a724843fb60130a965a9fc317f2d.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:2480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\invalid32x32.gif.kkk

    Filesize

    160B

    MD5

    b16fd07123004cfed3e26fb61a6e9dfb

    SHA1

    ddc160b3212067d497c4acf4437c0c2129ae5bbe

    SHA256

    8ae6419c9f9d2487b4f90ed9371de3abc811a0584743c7c4c3938c270b46bb40

    SHA512

    22a1aae8f390a4e3756908b333e5bfdf1ef49898a856bf920f491dcfa7237bdb21499ef4577525ce8fc5b08df97259d2538e4a09d3e9caa19ac815ae4a8d1b37

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

    Filesize

    1.5MB

    MD5

    6984a724843fb60130a965a9fc317f2d

    SHA1

    1ad9f8695c10adb69bdebd6bdc39b119707d500e

    SHA256

    917809beb6566079dbb6b686107756d9eb3ff4543f6b41ef327cea7497118457

    SHA512

    54d951c140df296b4fedff9225fee0e0660ee0f92a8790a7321da46334beb966a03a4d44bb0c9baac91cd53f1c81a84e7a35fc74aa67c8697590e87964e8420a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\container.dat.kkk

    Filesize

    16B

    MD5

    0c1d780021c5b23a385952eea404ebb6

    SHA1

    72ff2126b462cb558fd8fe62190507ef04c9f0e2

    SHA256

    c82c14ceb938e372e5b714924a8cf82e14ed33880b6bd301d70ca06e095e0c8b

    SHA512

    7d1869354f56eda976cda689ca1dd4bd3255909b2219a663eea9b8c35152d2e5aa3869f3f7e6e2d78fddb1ee65c1587167f5c070fdbed2ab26f67789f6c4bc16

  • memory/2480-245-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2480-11-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2480-241-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2480-248-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2480-2002-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2480-2005-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2480-2006-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2480-2007-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2916-3-0x000000001B260000-0x000000001B3B6000-memory.dmp

    Filesize

    1.3MB

  • memory/2916-10-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2916-0-0x000007FEF5CEE000-0x000007FEF5CEF000-memory.dmp

    Filesize

    4KB

  • memory/2916-2-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

    Filesize

    9.6MB

  • memory/2916-1-0x000007FEF5A30000-0x000007FEF63CD000-memory.dmp

    Filesize

    9.6MB