Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    27/05/2024, 18:30

General

  • Target

    2024-05-27_5a9ffdd7833030d87b93749e751c3d2c_cryptolocker.exe

  • Size

    46KB

  • MD5

    5a9ffdd7833030d87b93749e751c3d2c

  • SHA1

    ba417d5fe15a3b969c9009c4013f0bddbf6e4c3e

  • SHA256

    c68f89e4a44d59b21463bac470c09041680d109b9150437f05eabbe776f77079

  • SHA512

    9fd18dcaec4f39530be669e152604a2065ba3ea67b491f6d3dfc0336301dc99c80f7880c501e95bd1c1c6df6bbe561b1c654adca12fc7c9cd7d98d9cb8b0190e

  • SSDEEP

    768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPh+s:P6QFElP6k+MRQMOtEvwDpjBQpVXK+s

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 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_5a9ffdd7833030d87b93749e751c3d2c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-27_5a9ffdd7833030d87b93749e751c3d2c_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3024

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          46KB

          MD5

          fb671ac634e05de92aa401a1b09b6709

          SHA1

          7108b8dd739206a63cceec4ef90b0907eb293bb9

          SHA256

          cc1e884fa5d291fb1a1b0370d2d00d72ac8606e045347684d35a1755a63215f2

          SHA512

          7965cd567a17324057fc26cf1b80532723e2b7fdb38ba2fbb091ab7ed8f318fd7c1d0837e6686bee895f760a8361f8ec044772a5de73cf6a287310fcee1354d3

        • memory/2860-0-0x0000000000500000-0x000000000050B000-memory.dmp

          Filesize

          44KB

        • memory/2860-1-0x0000000000320000-0x0000000000326000-memory.dmp

          Filesize

          24KB

        • memory/2860-2-0x0000000000460000-0x0000000000466000-memory.dmp

          Filesize

          24KB

        • memory/2860-9-0x0000000000320000-0x0000000000326000-memory.dmp

          Filesize

          24KB

        • memory/2860-15-0x0000000000500000-0x000000000050B000-memory.dmp

          Filesize

          44KB

        • memory/3024-16-0x0000000000500000-0x000000000050B000-memory.dmp

          Filesize

          44KB

        • memory/3024-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/3024-25-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB

        • memory/3024-26-0x0000000000500000-0x000000000050B000-memory.dmp

          Filesize

          44KB