Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/01/2024, 00:24

General

  • Target

    2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe

  • Size

    51KB

  • MD5

    1ab22df04658b19e954ddf54e71122d6

  • SHA1

    67881ae54822fa9642140a056e0eb44a94c861b9

  • SHA256

    9674689390492e36a18af30f89e8a60f2587aa89cec78635a2f3d5dab119e781

  • SHA512

    088a18e19a219ad63dc7114da302f196f6b03c84de92b2975892bdb8e971ab1182f0c85c2367d76dcb9f60b22600e13f07e61711ba881233357f6a4c0f50ad17

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdO5A:ZVxkGOtEvwDpjci

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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\2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5016
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:3736

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          51KB

          MD5

          20823f2e369082479a4c91e6f63fd6f1

          SHA1

          408ef02ecaea0e8ba363ac9cbb349890e7a65013

          SHA256

          99b83c9a675801e1646eb6fe158e3df6623c2c5c349c38ff794b7f3bf2191371

          SHA512

          2d362adf7b6d2c115b3559d43e54b24f6322a22cca50fb8812d713a2e5a688c9448bed807f8a9d8b149c143a8fab3538e4c6168a16ae49281183fce10806fb08

        • memory/3736-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/3736-19-0x0000000000460000-0x00000000004A0000-memory.dmp

          Filesize

          256KB

        • memory/3736-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/5016-0-0x0000000000410000-0x0000000000413000-memory.dmp

          Filesize

          12KB

        • memory/5016-1-0x0000000002190000-0x0000000002196000-memory.dmp

          Filesize

          24KB

        • memory/5016-2-0x0000000002190000-0x0000000002196000-memory.dmp

          Filesize

          24KB

        • memory/5016-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

          Filesize

          24KB

        • memory/5016-17-0x0000000000410000-0x0000000000413000-memory.dmp

          Filesize

          12KB