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Analysis

  • max time kernel
    94s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 05:28

General

  • Target

    2024-09-19_45045d5c5a36f1aa70e6ebe6f93ba430_cryptolocker.exe

  • Size

    37KB

  • MD5

    45045d5c5a36f1aa70e6ebe6f93ba430

  • SHA1

    a884691b2091c51d52375dcd8b2b2205841f5513

  • SHA256

    cafb546eb93f9368c620fa6f279b75208b32d09c834dde6041b6445a7b19d8d5

  • SHA512

    16dc9f7a8c7e121ee1dc28da009ea4a2ce4618c43b216f15d74667a6416e6775d633e2716026364314e36fc5476f106beb58607b99daf91a66efc0d5fee4b4bc

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRla:m5nkFNMOtEvwDpjG8hhXXa

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\2024-09-19_45045d5c5a36f1aa70e6ebe6f93ba430_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_45045d5c5a36f1aa70e6ebe6f93ba430_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5084
    • 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:1068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    37KB

    MD5

    e98f82a02df6c8f600fefeed5ac5fdf0

    SHA1

    43a42a0e0628a49146a4454e81f64a3d84d41060

    SHA256

    a3b11259a05c37a21fe6cda1b2a55b440a5e70c77fd0355415ec969dcd7fee1d

    SHA512

    6660cafccf33844f055b8a58954b1573d1c7f50bac82c7b25096d8d2d3e4682e23541c2e2a101cfbf81d29d232543e846a9e900ca85d8ec035f3dde95bd8e6d5

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1068-20-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB

  • memory/1068-21-0x00000000007C0000-0x00000000007C6000-memory.dmp

    Filesize

    24KB

  • memory/1068-50-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/5084-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/5084-1-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/5084-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/5084-3-0x0000000002220000-0x0000000002226000-memory.dmp

    Filesize

    24KB

  • memory/5084-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB