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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/05/2024, 20:52

General

  • Target

    2024-05-23_2daedc9104ad05d3189cccd79726850e_cryptolocker.exe

  • Size

    52KB

  • MD5

    2daedc9104ad05d3189cccd79726850e

  • SHA1

    87e9ef4e7841c15d99af9b0c84ad68b5060b7452

  • SHA256

    2480d7025b9f7db326bc3c5e7242f6c5fb1afa9d532522c0fb8886e7f18cc074

  • SHA512

    ff0525d124769e4deb5a7a1c85a44ba995518674d23540f8072fc3369dd1cb96a33587aa5593fb71b4a48768cb286d11b07623251fc941d66b54f0422ea5b1f9

  • SSDEEP

    768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnTHGfS0:79mqyNhQMOtEvwDpjBxe8GGfz

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 3 IoCs
  • Detection of Cryptolocker Samples 3 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\2024-05-23_2daedc9104ad05d3189cccd79726850e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_2daedc9104ad05d3189cccd79726850e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    52KB

    MD5

    f182ee71095ddc9c7f0b4d7d37f20dde

    SHA1

    e6619013e05bd41753ad73c50c140d416bec5aa5

    SHA256

    fb94efc374e36d6ad8fdd6542b239423429eac613780cfa25bda41f947cf5ecc

    SHA512

    1ed63b91538372f9ec10750d5df31a08a8e044ae612afb0bd16498526d4d538aa8046e6e28f683cb203c6f51725c21a21bed5e20e3f5afc3a8fe34ac99aa4143

  • memory/944-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/944-1-0x0000000000840000-0x0000000000846000-memory.dmp

    Filesize

    24KB

  • memory/944-2-0x0000000000870000-0x0000000000876000-memory.dmp

    Filesize

    24KB

  • memory/944-9-0x0000000000840000-0x0000000000846000-memory.dmp

    Filesize

    24KB

  • memory/944-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2372-19-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB

  • memory/2372-25-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB