Analysis

  • max time kernel
    134s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/06/2024, 04:47

General

  • Target

    2024-06-02_dfc6c1f251ab76892d070647abc85b72_cryptolocker.exe

  • Size

    44KB

  • MD5

    dfc6c1f251ab76892d070647abc85b72

  • SHA1

    6c2bea4a02989740436be572eb7bd6deeb71360d

  • SHA256

    874de09a5b1f1cf56e10cd47edf54d9025cff83874a6a8773e525adae3990a60

  • SHA512

    30f78cae5f80efe5860ba4ffc0f8726f466dfe6bdb3a9ace7813fc3692bf31d5d14177aab7f9094078fd14599dfc93fb6cd47e25494e3009a869104299706249

  • SSDEEP

    768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3Kxm:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XT

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 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\2024-06-02_dfc6c1f251ab76892d070647abc85b72_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_dfc6c1f251ab76892d070647abc85b72_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:184
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:3184

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\hurok.exe

          Filesize

          44KB

          MD5

          992706035b4f681282637cd8529d6222

          SHA1

          e5476d480ecd5fb167fdb7ef6c008ebd148f3d1a

          SHA256

          f886c3d23d1b7abbddc5bc3fbd1a133a7729dcfe61b424f9c22a0bda672968bb

          SHA512

          cfe0d0b51834cc4193daeb948e77a9af204ab145eb260089ac9794300ae2ad1f3cec8e7d2c88020658f1e137975ab62fe7915445785bfe765d06726a5d932310

        • memory/184-0-0x0000000000590000-0x0000000000596000-memory.dmp

          Filesize

          24KB

        • memory/184-1-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/184-8-0x0000000000590000-0x0000000000596000-memory.dmp

          Filesize

          24KB

        • memory/3184-25-0x00000000021C0000-0x00000000021C6000-memory.dmp

          Filesize

          24KB