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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/10/2024, 01:41

General

  • Target

    2024-10-06_1b7186aa72affcef37a5a7862fee5e0b_cryptolocker.exe

  • Size

    46KB

  • MD5

    1b7186aa72affcef37a5a7862fee5e0b

  • SHA1

    fca945c5203787baaf0775d65c42c5d52b4940a9

  • SHA256

    dd34cd5bdacbb0065195fe43a0dd31f7b240b1af447f2d9509371ebadaa2d0af

  • SHA512

    951ef4462ed62348038c33975e0c221d735063e1efb185fbbdde3c376fe6e09a7052fcc0b3336fed9258f3c5204a3d67e0cfe67ea3d2c35f395b7e2312859256

  • SSDEEP

    768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zM:bF/y2lFizbR9XwzM

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
  • 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\2024-10-06_1b7186aa72affcef37a5a7862fee5e0b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-06_1b7186aa72affcef37a5a7862fee5e0b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Users\Admin\AppData\Local\Temp\rewok.exe
      "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    a54d0120ab0170bfb366669729a85d00

    SHA1

    cf18e8010741ca558c34be97a21572b93a5d3542

    SHA256

    228843da2cb7030b0110504fafea2d91c3b454353b4876d63e3d8b950e158199

    SHA512

    6cf58e76584443c78a231132046110b19250d3fb77606aa492a773075f6524812596aeaefa43a656b72f59bb88e95fa648abd3d708f00715f4875a1c1cec5bf2

  • memory/1648-25-0x0000000002D50000-0x0000000002D56000-memory.dmp

    Filesize

    24KB

  • memory/1680-0-0x0000000002140000-0x0000000002146000-memory.dmp

    Filesize

    24KB

  • memory/1680-1-0x0000000002140000-0x0000000002146000-memory.dmp

    Filesize

    24KB

  • memory/1680-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB