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Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2024, 18:43

General

  • Target

    2024-10-13_059e98425ebbb4585f04c7e45826dd39_cryptolocker.exe

  • Size

    40KB

  • MD5

    059e98425ebbb4585f04c7e45826dd39

  • SHA1

    b73a3c605b326b76dedfe3e53bd356637758fc6e

  • SHA256

    3ed0c6450c188d2207dfd65a1e07d6e50d5a8fb5f8a874f02e645016a10ad14f

  • SHA512

    365635c32080ab5eaeabbb37802ce2b5407a71889c083dbb44fa715a21252229744055c918c005713ccfdda01aa3569deeb9f13af7bd9978cad4106c4a8db23a

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaB0E:qDdFJy3QMOtEvwDpjjWMl7Tdz

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 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.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-13_059e98425ebbb4585f04c7e45826dd39_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-13_059e98425ebbb4585f04c7e45826dd39_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2320
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:628

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    1de1fc75dda19f3e2e42b103ce38bca6

    SHA1

    321374bcebf19184c8f0b8d8c1c018311ef42d52

    SHA256

    30170b444be8551cd5bafb6d97dd1c9a815009cd5b8679ac9b057e600e30703c

    SHA512

    8f8149a5edc980357ee936218b02ab79afcbd6507670eaef1f0f40e8ff1c010ff4e04104423a3ff4da38bb8bb68dbb36eb4d182ab060d8bd2dc37d9b68ef7d57

  • memory/628-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/628-20-0x0000000001F80000-0x0000000001F86000-memory.dmp

    Filesize

    24KB

  • memory/628-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2320-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2320-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2320-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2320-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/2320-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB