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Analysis

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

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    28/04/2024, 05:39

General

  • Target

    2024-04-28_93979da96b7ac9fe5fc0ae359ab48c2e_cryptolocker.exe

  • Size

    47KB

  • MD5

    93979da96b7ac9fe5fc0ae359ab48c2e

  • SHA1

    eb24e6d4366b4caaf042ad4c631f59011d3b6aa1

  • SHA256

    00d7991359dc492f4904dac7295f2e45e32c84ea7f59a9beb7b39d099b39b241

  • SHA512

    8a6573d19d1edfb3605b899930d84511ae266db859aad1617917ebf071e2538307e9108253523faf03f3e1b0b7b712b46cce76c1618f817aaacc154bf94ff544

  • SSDEEP

    768:qmOKYQDf5XdrDmjr5tOOtEvwDpjAajFEitQbDmoSQCVUBJUkQqAHBIG05W2MoA5:qmbhXDmjr5MOtEvwDpj5cDtKkQZQg

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • UPX dump on OEP (original entry point) 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\2024-04-28_93979da96b7ac9fe5fc0ae359ab48c2e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-28_93979da96b7ac9fe5fc0ae359ab48c2e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2068
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2508

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    47KB

    MD5

    9d794f60e299a7404fd299581b222ff6

    SHA1

    4848053d7793b0e1401d9ffb31e3e35c99101501

    SHA256

    19037b7e0b735035d461b6eda547b9ace7e4a2d5cdb620aa269304195db13825

    SHA512

    1be829d5a9755077084062001fbc91bc583db6756766c1742111f138e40aec58e8bfa7271290351d4876d148a71a4231acbb531a91d4f901a023d9247cc5730e

  • memory/2068-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2068-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2068-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2068-3-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2068-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2508-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2508-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2508-26-0x0000000000260000-0x0000000000266000-memory.dmp

    Filesize

    24KB

  • memory/2508-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB