Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    02/06/2024, 04:49

General

  • Target

    2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe

  • Size

    68KB

  • MD5

    f8034bf0d6cd9d12f446f59d39398f9f

  • SHA1

    ee37c8f2ae71cd7431f5ac3036c4bf9153c6c7dd

  • SHA256

    046041af54c6fdc086d59eec0f407fe7e78c4cdb9328ba1f25fd61ccf266f146

  • SHA512

    9dee3f0066460e74dee0361e5fa7d5a6b02890c9095607462153c0e80b5d36fdd8933d432653fb7adfb206fdba14ceb33f561c8b80675db2b78b72ba2fb0f559

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEpE0P/xFIO:6j+1NMOtEvwDpjr8ox8UDEpN/jP

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 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\2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_f8034bf0d6cd9d12f446f59d39398f9f_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2640

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          68KB

          MD5

          556bba887b30ec8e49ee07e64f6b38ee

          SHA1

          8462746782b0f26aaef4ef51cb3d3166d6505284

          SHA256

          c0f7662f4ae1be716dbae7fa0654e576ae5c3daad31d046ef6600386e7006ad1

          SHA512

          cd3a053f7ff31125af3c8367401d82cb3046e6f950dd42af0a9bdcd88fda534bcbae1b0171f7aaedd65f092ef6072f031867f6cbc147605dba54b25372850ed1

        • memory/2640-16-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/2640-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/2640-18-0x0000000000340000-0x0000000000346000-memory.dmp

          Filesize

          24KB

        • memory/2640-26-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/2932-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/2932-1-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2932-2-0x0000000000480000-0x0000000000486000-memory.dmp

          Filesize

          24KB

        • memory/2932-9-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2932-15-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB