Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/06/2024, 02:31

General

  • Target

    2024-06-11_7f89d7ea59d2602353283b7514eea070_cryptolocker.exe

  • Size

    65KB

  • MD5

    7f89d7ea59d2602353283b7514eea070

  • SHA1

    c47e04786965665c50873244ffb0ffc30a0bff7d

  • SHA256

    f7391c0513832d108bf10b87ad5af7f1a97c4376c3d36d35b091ef32f09ed881

  • SHA512

    15ad0f0ee4295e2a28cf2498909ebbc1258573ac21aa2b1c90d68f9071c96c76856a588f34a253292458e400b1e43c6725d2c2f01ec333a09d1c105cef3bcb4e

  • SSDEEP

    1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDScGy:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7D

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Checks computer location settings 2 TTPs 1 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\2024-06-11_7f89d7ea59d2602353283b7514eea070_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_7f89d7ea59d2602353283b7514eea070_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2276
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      PID:4596

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          65KB

          MD5

          76f1cf260feec0b426e1a66edcbb8893

          SHA1

          7b299fe20de3e5a0f8eb7e1d99a032aa30db039b

          SHA256

          aec7628c27cdb1eb6ccb7ee8260d67a8d79c72a0f3e3dc4d319554c51531f425

          SHA512

          9c6d9edfec6f0c3b7c71da1319d9c522d1cc0fda8aeead3936b8f36a4e3105188dde282008ccc6b043aed4a41691634cf0de322304ad1b3fdc4c280fd8382ae0

        • memory/2276-8-0x0000000002040000-0x0000000002046000-memory.dmp

          Filesize

          24KB

        • memory/2276-1-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/2276-0-0x0000000002040000-0x0000000002046000-memory.dmp

          Filesize

          24KB