Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27/05/2024, 18:30

General

  • Target

    2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe

  • Size

    45KB

  • MD5

    58bc0995e863bc35be5340147bbde4fa

  • SHA1

    22a5675326d427d80f850fc85c8dd7a970eb99c9

  • SHA256

    7c1d119a1ae87314d16626dcf1d660bc059a5237e91938d7dc29f50420c85499

  • SHA512

    75d48e9fa14cae562f356ece4ef40a565502173ccc59edc11d6d8a54a41433debba44e2faafa11387525a893a17504c47e12705f0c1117fce478b66b387add7d

  • SSDEEP

    768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsx:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3+

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2832
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2600

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          45KB

          MD5

          5b37790ecf1dd1a69acd1d97ce12032e

          SHA1

          c4f8c7fd7e355646f8c31679e1aa0bb82d0da819

          SHA256

          9b2fba8a1c84c3aea63f8a608e5709e6e3331a5cce6f244cc6f566d1e218c97c

          SHA512

          a1734ed5a96f3b418d5e00183789117e751e5ec0f7fce8950d88e6f2c2046e752833ea7645f0ebc70eaadcdf66f7daeaf0241a8615bdd80df9ea90231c2545fa

        • memory/2600-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/2600-15-0x0000000000310000-0x0000000000316000-memory.dmp

          Filesize

          24KB

        • memory/2832-0-0x0000000000300000-0x0000000000306000-memory.dmp

          Filesize

          24KB

        • memory/2832-1-0x0000000000300000-0x0000000000306000-memory.dmp

          Filesize

          24KB

        • memory/2832-2-0x0000000000340000-0x0000000000346000-memory.dmp

          Filesize

          24KB