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Analysis

  • max time kernel
    94s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/09/2024, 14:22

General

  • Target

    2024-09-25_41df8fa3d1586ac37283237baae2fc16_cryptolocker.exe

  • Size

    37KB

  • MD5

    41df8fa3d1586ac37283237baae2fc16

  • SHA1

    d96aec0631c97d79b25be70b448975c13b1c9f71

  • SHA256

    de289789c6d96fded6ba12efa8513615e12fefa371cd38a07f6cbae370d08edd

  • SHA512

    2a1fcd8abb0543e559a57ffe8453a8ca21831c5d4fe0653169b9603136a8b430f20f96fcaf062dfa59f5f3eb40eeca96cc78a2e62055d67ecd623ddeb7aa9cfd

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5f:m5nkFNMOtEvwDpjG8hh3

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-25_41df8fa3d1586ac37283237baae2fc16_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-25_41df8fa3d1586ac37283237baae2fc16_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3240
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:1152

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    37KB

    MD5

    05c78e2969263241948710119bad6ec5

    SHA1

    a7c064a387d8f81f490ebe4bcefa0b2b6d553b1a

    SHA256

    6b8445e67e382d094a75bbc196825686554558d2ef2d488f526924684cd25a85

    SHA512

    f2492105035264fa694ab549766ff84d60b37a079a58218451da80daaebdd57545f55d618a5a181c550d4798b55eddbba188c88de50562d96a47bb0844ecf552

  • C:\Users\Admin\AppData\Local\Temp\misids.exe

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1152-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1152-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/1152-49-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3240-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3240-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/3240-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/3240-3-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/3240-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB