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Analysis

  • max time kernel
    149s
  • 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
    29/05/2024, 04:43

General

  • Target

    2024-05-29_e03fc59e8fd7e4d1da5886f17d891171_cryptolocker.exe

  • Size

    41KB

  • MD5

    e03fc59e8fd7e4d1da5886f17d891171

  • SHA1

    01e118c8093508b5e79d38a89c76870d62232a0b

  • SHA256

    8e98ad871509d902dc77ce61aa493f732f6d96d5d0da81dbff681f7fea00c907

  • SHA512

    bf8ba12747f08a43b069d21b56254adef1e96e09a6e31fa9625250bfea941a11bdea5636436285ef179a27a620abc44b5f5849d4fdb1873516422a01a044769f

  • SSDEEP

    384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/Eym:btB9g/WItCSsAGjX7e9N0hunKLYNm

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\2024-05-29_e03fc59e8fd7e4d1da5886f17d891171_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-29_e03fc59e8fd7e4d1da5886f17d891171_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:388
    • 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:1496

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    cf741f51e63611b0e42ee07f7c71e85d

    SHA1

    50dd2713059e8c0ca1c6ab1f41f6c2c1f5798e72

    SHA256

    b3f0236ac39d1e623a35a23e26a066241b2cae4b897a50fca089ae6028c7b788

    SHA512

    9e4a94ca9aa157c9bcc4b374d96eb910e074b19bff40dd72e9d8f9283a2480ab83fc6d8d6332a20bfc8a391661566aa4881f0388322171ef1989edeebcdface4

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

    Filesize

    185B

    MD5

    10ac4628cac99cd9052d5d523784ab01

    SHA1

    e6771f2f5422560c54d30500afadda2443f26c55

    SHA256

    d8caa618c32808b9b07f798bb408d59d97da8a00b324b624e15c51f06e3b1a87

    SHA512

    212e876251fbc93571bac9cb95bba6ea5d94bd2e54522dce12efc559d7c3d67b58768db223334de996bc939f98b329c4e7d3249c68b60e341418bdf0fab7cb13

  • memory/388-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/388-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/388-3-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/1496-19-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB