Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-06-2024 02:54

General

  • Target

    2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe

  • Size

    786KB

  • MD5

    7749bc1e7c42c536d05977b77fe9b7df

  • SHA1

    307e5440c63ee29294ed40eac402e9ff089150fe

  • SHA256

    71c870e5917f1267c6c70fcbd3937e88210a72296f6ffd904feb1949f5b2bd96

  • SHA512

    104aad0b26a5c0cd7866a80f1ed6e62e8850d3b93fabab13a66103d23d7b711eebb9e721ed2016e766b72ca2f39742f8465f2bb8c4112f56bc2e5af2e9fe0b2f

  • SSDEEP

    24576:aHQVCB9lVF1lVF1lVFkUEi019za5F+DLK9bygw6X/pj:aHAg9lVF1lVF1lVFkUEiiCX/Z

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 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\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:456

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    786KB

    MD5

    dcbe97c20f574391ffce247103b9b645

    SHA1

    4a8c64548d99028999efc412c797444919ffa4b8

    SHA256

    415e30dfd53d4d78229cf8b018eec97ebcfdfec2d4d99b3f32cbd5e941258434

    SHA512

    296939c94c6a9fa2c7a929d3568db039e93ce6f94688978af5e8e230817f276ae2d79ccb801e256c6e8f43e61e1475baa39426f53d43f181b6ff70324ee78b9b

  • memory/456-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/456-23-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1500-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/1500-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/1500-8-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB