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Analysis

  • max time kernel
    135s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/09/2024, 12:38

General

  • Target

    2024-09-05_f2d3c7e012b46c6925088ba01d55b6db_cryptolocker.exe

  • Size

    54KB

  • MD5

    f2d3c7e012b46c6925088ba01d55b6db

  • SHA1

    5b0dfb1f0caa3a36f48df446f2a57e3824b21801

  • SHA256

    0f2ba5a5f4bd9e1e3d4a0c3d1d406f6b91cf93036ddde272f14885cd36f2c77d

  • SHA512

    4e7f1138820d61937f126f42c5102f381797b916a1c0ac03a5a4e19a71873af4ba4c4411f2469a0997712b68554628def48f0e1359c74d017e240231fc91611b

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4hdCW1nw71TkhsiPn1YFvPU:vj+jsMQMOtEvwDpj5HH1nw73KOFU

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\2024-09-05_f2d3c7e012b46c6925088ba01d55b6db_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_f2d3c7e012b46c6925088ba01d55b6db_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2656
    • 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:1772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    55KB

    MD5

    0a0dfdf3e4aacef980a8bf92866cd7ad

    SHA1

    8ec494790652fd686c7faf290cc0a0db13b33966

    SHA256

    410476ab97c4a1715f69412c62edc8311babd62d678a9648af6e26d02dd78aa1

    SHA512

    08770823ff1055272c2517d5e890c2e899204f64bddde77387d7484bda1261ca39bc85cdf573adcf7b0af6df1abe5070c8f18741d441fd50990665a604acc676

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1772-17-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/1772-18-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/2656-0-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/2656-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/2656-2-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB