Analysis

  • max time kernel
    145s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/03/2024, 00:40

General

  • Target

    2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe

  • Size

    35KB

  • MD5

    9533cdf30260ea586ad8f0cd8dc53188

  • SHA1

    5447912a9323cd4762d004e8a4fe84aff067d886

  • SHA256

    22d78f61980b786020a96f29221bbf1583b576cf66436da0b2e5f5b744b5ef4a

  • SHA512

    be2244a30e841f6e37af974d6c079b81c978db75c0ba2f1ab837b29f936731bda5cea3cd8083c573bdb820202664f5b990a6a06b66c00fa52bdda91ffa16c2d7

  • SSDEEP

    384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiA0f9HMfKK:btB9g/WItCSsAGjX7e9N8sfB

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:768
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:5068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    35KB

    MD5

    daf487633262c700bbfc112834be380a

    SHA1

    555fc252edb6bac787aa56ba0b9a27407abe2bba

    SHA256

    c85a4bc88a58721f9d462d42c92878381b88ee2a434514bcf70cbbf00d6fe44d

    SHA512

    95f3ed5ea7f2cac157ce8dd3bd739ce82d70ddd7fbfd01098bfdc999e28e4770860be478018e3c251b80c5d2fb7de79eeaf3c4a6ce14a9d4aa2979d2ead8211f

  • memory/768-0-0x0000000000770000-0x0000000000776000-memory.dmp

    Filesize

    24KB

  • memory/768-1-0x0000000000770000-0x0000000000776000-memory.dmp

    Filesize

    24KB

  • memory/768-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/5068-21-0x0000000002080000-0x0000000002086000-memory.dmp

    Filesize

    24KB