Analysis

  • max time kernel
    162s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/01/2024, 06:02

General

  • Target

    2024-01-09_e30b1f1f954e967214de2ada138b4728_cryptolocker.exe

  • Size

    45KB

  • MD5

    e30b1f1f954e967214de2ada138b4728

  • SHA1

    510b0c4bc629079b38cc17c51bceddb70293aa50

  • SHA256

    164dcdaf1069d748391368dc5e9c272398f7b48c5ed3d25088c9404a90cb031a

  • SHA512

    eeafc5af637c3af3a48c58d1d45e3096f43befc24576c81f3956c29dba902b50e90f031ff998bc03f03a1c34dbd8a585b308a9e750f9186467998efd96bd756d

  • SSDEEP

    384:icX+ni9VCr5nQI021q4VQBqURYp055TOtOOtEvwDpjqIGR/hHi7/OlI0E4M:XS5nQJ24LR1bytOOtEvwDpjNb4M

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).

  • Modifies system certificate store 2 TTPs 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-09_e30b1f1f954e967214de2ada138b4728_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-09_e30b1f1f954e967214de2ada138b4728_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1572

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          45KB

          MD5

          616978da6da217acb1bcbbac83f27804

          SHA1

          4a35b533e2c729b5c79e1aa0e2cae434feb0d710

          SHA256

          8e633730157ff568e164cc1c5a373216575e8383bf90eeae3223198ec7a88c75

          SHA512

          3d65cec5a186edaf4dd00ace5674beb261b2da4d9f634eba06e1966ac15852312184ab75ff8028fff438193b55a024d8efb61feed0280b18f0c2c778b8ecacb4

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1572-19-0x00000000007E0000-0x00000000007E6000-memory.dmp

          Filesize

          24KB

        • memory/1572-25-0x0000000000660000-0x0000000000666000-memory.dmp

          Filesize

          24KB

        • memory/1572-48-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/1892-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/1892-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/1892-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/1892-3-0x00000000005D0000-0x00000000005D6000-memory.dmp

          Filesize

          24KB

        • memory/1892-17-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB