Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/06/2024, 22:29

General

  • Target

    2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe

  • Size

    48KB

  • MD5

    feeb83f63a20472014a94f7f1473a720

  • SHA1

    2a02e4547e575b1ba357592891b9cfe44cd6aaac

  • SHA256

    ec352504445399f23945ff354713529f38267c6f7acf78970b120fb322f46454

  • SHA512

    ba75f2ab06329125315eb05fd61dc8ceae9ab332bfece4104c67c8c6272d63dda3ead0c1616c8b9cd0e20bea6d6c22c3743cca988925d6a6629c9ec0608da5f1

  • SSDEEP

    768:79inqyNR/QtOOtEvwDpjBKccJVODvy3Sp8Lv:79mqyNhQMOtEvwDpjBzckqSuT

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 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\2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    49KB

    MD5

    48aad15686d327a056e364bd017840ed

    SHA1

    972a96495adcca5801d83be5c9e18bce974f94fa

    SHA256

    2250234a3aa2347ea5e0c12eff8af7a02aa65a1f72b8db590b48981dbe75dba3

    SHA512

    89fb4b83b36f5c740da401b233f1ff2dc06a0074b63b15b4fcb4e3b2865aa981a4947c59d110232799afdf1d6fac23aeea14dc46bb4dfa37db32d6df0fd0b657

  • memory/624-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/624-1-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/624-2-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/624-9-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/624-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3972-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3972-20-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/3972-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB