Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/06/2024, 04:39

General

  • Target

    2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe

  • Size

    38KB

  • MD5

    1e76ad4cde651058849b8c744e7fdd33

  • SHA1

    911b3333cf1e2ea31521bfdb48c6ca0980d528d0

  • SHA256

    0f898512928d74138db447ba04552267c9344325f6d1e23f15812cf2275cea6f

  • SHA512

    3dcbff7f82c9f92e1b325d5f137bb31f6d2b159dd53547a8f87c7382a2b03dde37ba05354886e90286fc2de5e21cbcc0ce89e8ab28c2a77072287a770d606eb7

  • SSDEEP

    768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0UpD:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xq

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\2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:388
    • 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:3700

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          38KB

          MD5

          9ffd4ab5e1630a2fe263fb3b821d838f

          SHA1

          8ba826a143f6440b1ef48ac33f2f6b161b0103c9

          SHA256

          e5e682aff45b0c9140c5e70b22b8076bbbba9b99aab542482467582ef0dd65c0

          SHA512

          6b3d9b5cf72382786c5a75af2acc4b277de67fc3ec39dbcfb5e9132289a71672a972e48109d8f7424e6aef2e6659b88c3550ce60dd58f94e5c16910bc53c0025

        • memory/388-1-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/388-8-0x0000000000630000-0x0000000000636000-memory.dmp

          Filesize

          24KB

        • memory/388-0-0x0000000000630000-0x0000000000636000-memory.dmp

          Filesize

          24KB

        • memory/3700-25-0x0000000002140000-0x0000000002146000-memory.dmp

          Filesize

          24KB