Analysis

  • max time kernel
    135s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-10-2024 04:33

General

  • Target

    2024-10-09_479c7b8611200c673df38576858f3279_cryptolocker.exe

  • Size

    95KB

  • MD5

    479c7b8611200c673df38576858f3279

  • SHA1

    34b3ac105ff1f16971855d9b0817972948c5610b

  • SHA256

    96a8b7da62615983b56201ef4e9db92dc51b44784c4e10686b8dce5aa22d22d5

  • SHA512

    2412a3446d8a54df5cad3fda4d7006eadbe496bb8147387a40ebe5d247261389ee8e23ce5722b3275ebc69ae9b6d8b7a41d513ecd9d1ada369e9f1f55532a4fd

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjuvQG:zCsanOtEvwDpjd

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
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-10-09_479c7b8611200c673df38576858f3279_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-09_479c7b8611200c673df38576858f3279_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:384
    • 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:3740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    96KB

    MD5

    433ace43b8c3b32929b6277847015032

    SHA1

    24b994a441b4af295ef2f82ee2c5e712c8c40f45

    SHA256

    1c5eeb4b6ba36edc91be3142654a8a5d024d1e91c2185f0f2a8f1cf769ccb03e

    SHA512

    9267dd0afcf20edc8090672ef244dc017125e3b5c03450f70408c28c775b5619afd6fa7ad77e872e54da3bd905456c640e5036378afb7277dc202dcdf37a20ee

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/384-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/384-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/384-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/384-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/384-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3740-19-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/3740-20-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB

  • memory/3740-46-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB