Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/05/2024, 20:09

General

  • Target

    2024-05-23_266157d309e1ab3131026e0d024b2336_cryptolocker.exe

  • Size

    37KB

  • MD5

    266157d309e1ab3131026e0d024b2336

  • SHA1

    ee9bb3516844b0214024b39574fca803cc7831b7

  • SHA256

    0c685dc0dd4cf7fccb1f5f96e4a31dc1064f7dccf294c04524c62ba7161772ad

  • SHA512

    f9563cb46f5a532c8b3f05f5a5b082a092c24654e9dea0402bd4e441fc0fda4120c6451a9717bd7c978008e1a4e9f530e9f50d4f128e50eaf87bb117a0dd3a22

  • SSDEEP

    768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4X7:fT+hsMQMOtEvwDpjoIHr

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\2024-05-23_266157d309e1ab3131026e0d024b2336_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_266157d309e1ab3131026e0d024b2336_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3852
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:4484

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          37KB

          MD5

          c2a45e207991ff2123c5fdf871d813bc

          SHA1

          2ca4e229e6b6ce9e5e7eafc206b2ad3293a3c2d7

          SHA256

          40813800f25943d381bed9bdc76fc2efbe0279ff388f9dba4e631b5597c68138

          SHA512

          94fb2a2da0575103de2a8da798b51f7f058aaad46827dd577094caf87be870afe008cc48882b2110633ce05d224d6d1e2f1174d045cbd359d17bf6044b92b465

        • memory/3852-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

          Filesize

          24KB

        • memory/3852-2-0x0000000000510000-0x0000000000516000-memory.dmp

          Filesize

          24KB

        • memory/3852-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

          Filesize

          24KB

        • memory/4484-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/4484-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB