Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/06/2024, 15:44

General

  • Target

    2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe

  • Size

    54KB

  • MD5

    aa2a3f37c9d71099c1b8a61f7afdeeb8

  • SHA1

    f7d61832e4d9c73a2fa86bd967cd7f1c1dd99eb2

  • SHA256

    7e915e7418f83cbca20bba1c3ac9f655eef6a7e38409e88fc9ee7ba536afcc94

  • SHA512

    80c803220f6a0d10e9c10aa54254c94969ddd55e0b70e6f2f43979a755393524a78a706076332ebaa193d72e0a43d054c9ceb7ccf9c5023053a86da22134277a

  • SSDEEP

    768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9Xv+mb6uXsE:bIDOw9a0DwitDZzc16e

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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-19_aa2a3f37c9d71099c1b8a61f7afdeeb8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:720
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      PID:2672

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          54KB

          MD5

          7a63ffed80bb5802fb2628844c8b9ea7

          SHA1

          4639e248100b6b35b4d15fcc59680ae4985301f1

          SHA256

          a3a7939319e09071d2e24df628afb511734f5a2a211f52892232f252ae62e6ef

          SHA512

          ab75478ee32588dd395647545c27ff6474fc63674d9b861d4572e582ffeb0f1303e6bf480e93ef7e8d368ba503ff9c1694d3485fbab4622bebaf30ea6b97d1b8

        • memory/720-0-0x0000000000720000-0x0000000000726000-memory.dmp

          Filesize

          24KB

        • memory/720-1-0x0000000000740000-0x0000000000746000-memory.dmp

          Filesize

          24KB

        • memory/720-8-0x0000000000720000-0x0000000000726000-memory.dmp

          Filesize

          24KB

        • memory/2672-17-0x0000000002070000-0x0000000002076000-memory.dmp

          Filesize

          24KB

        • memory/2672-23-0x0000000002050000-0x0000000002056000-memory.dmp

          Filesize

          24KB