Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/06/2024, 04:50

General

  • Target

    2024-06-02_ea33fe4831c0577b2dba0c352a4d94ed_cryptolocker.exe

  • Size

    51KB

  • MD5

    ea33fe4831c0577b2dba0c352a4d94ed

  • SHA1

    0ba562dc75a5afac452ded355bb2a3da1783f439

  • SHA256

    0a1495479f90096b1e635dfc020cf14cff905f43e6e65d7889d07786d24047e1

  • SHA512

    d390278d455f9c4f850aeea5edffc426c07695ea99060ff25f644893712efb84614952b4811d50812d2d6d24f3afe7699bf1f5e519d7414a675edb2bc4cf5d90

  • SSDEEP

    1536:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLqv3:X6a+SOtEvwDpjBe

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\2024-06-02_ea33fe4831c0577b2dba0c352a4d94ed_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_ea33fe4831c0577b2dba0c352a4d94ed_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4144
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3552

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          51KB

          MD5

          45d87c91c5862b30e895eec717439a19

          SHA1

          974cbf622ceb80d216d6943580b09ffa40e99c8e

          SHA256

          8890355c3b368a662bf2fd5e988fc2871fb3826b9ff331ad66df86160a97b4ff

          SHA512

          b74d95a32c1d0de2270159bf8e49cbeaa439eba51bfee1bc4cbd7de907f6e9bca138c7fdedc78145b3eb4c350e59a2d487341d403527dc28d50d425eb808321b

        • memory/3552-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

          Filesize

          24KB

        • memory/3552-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/4144-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/4144-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

          Filesize

          24KB

        • memory/4144-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB