Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/06/2024, 03:24

General

  • Target

    2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe

  • Size

    42KB

  • MD5

    0f5d26fe590ca4022a495311c0537c4d

  • SHA1

    c1b911766c5878873e080e3ba90af99a2bcb673e

  • SHA256

    01a500567465741efd75fd199171896fc019f3245297d81fd47612c0c160c0af

  • SHA512

    15ba5301d14f093a308df1aba361919b872973fb9b09406e965a6376cdd5414101eff994e46ff0594f670e37a5924c1e0ee2953efd449775171d3135cbabe3a1

  • SSDEEP

    768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9xo/:bIDOw9a0Dwo3P1ojvUSD79u/

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1324
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      PID:2352

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          42KB

          MD5

          0bbdd1b5edcd9a7273756f727dd58bd2

          SHA1

          cb64ab7d70198489de116c35facae861cb50ba17

          SHA256

          1fbeec4e108a6ade92840c3424fafc96e3536c8473f38526bf748dca971249e4

          SHA512

          aa2e6571fe9974e15674c69dcfa5e039e50864cb84e7edfb49ec9e70d39b1fcefdc8495e03251f8356dbfbca2f220aef584f520e748bd1a4eb6aebefac1de0c1

        • memory/1324-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/1324-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/1324-1-0x0000000002060000-0x0000000002066000-memory.dmp

          Filesize

          24KB

        • memory/2352-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

          Filesize

          24KB

        • memory/2352-23-0x00000000005C0000-0x00000000005C6000-memory.dmp

          Filesize

          24KB