Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    06/06/2024, 21:37

General

  • Target

    2024-06-06_d63a4bfd6c3f0fa7b34ee6ba32e3e4aa_cryptolocker.exe

  • Size

    37KB

  • MD5

    d63a4bfd6c3f0fa7b34ee6ba32e3e4aa

  • SHA1

    92d85fda465f57ebfbba312780a98752b2371c25

  • SHA256

    5ed087301ebae874ff5047576072f6e437b53d4d965bcf418e0c0f59d98a78e5

  • SHA512

    0a9bc28b8af4f4fa5cc7acbb964334a288d1d1ffd7d5a35e1a6ecefc36284c73d6e2838a890756b3ca098be1e6964747c9fcab31428b1fc7c86a34d75ccd0ad2

  • SSDEEP

    384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSy0:btB9g/WItCSsAGjX7e9N0hunRv0

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-06_d63a4bfd6c3f0fa7b34ee6ba32e3e4aa_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_d63a4bfd6c3f0fa7b34ee6ba32e3e4aa_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2072

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          37KB

          MD5

          1c31ccb88dfc9887ea4f5ae6ceee5431

          SHA1

          edc154feded570292ed4e2c41a524817a97bcc67

          SHA256

          8119e57048ca3bc5b226e628b4625949fcd404c0329269613c1c9c3d4586f7dd

          SHA512

          023084070d07c0e5c9fd626bca774254bef90913399d8f4e507682d93cc71aa9dc89efb79f128060c3389c6d70030befa1ca051367e96be95d2edfccfd4fad54

        • memory/2072-23-0x0000000000390000-0x0000000000396000-memory.dmp

          Filesize

          24KB

        • memory/2156-0-0x0000000000380000-0x0000000000386000-memory.dmp

          Filesize

          24KB

        • memory/2156-8-0x0000000000380000-0x0000000000386000-memory.dmp

          Filesize

          24KB

        • memory/2156-1-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB