Analysis

  • max time kernel
    132s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    19/02/2024, 21:22

General

  • Target

    2024-02-19_03a918db30abbc4b755c5c46efc5fae9_cryptolocker.exe

  • Size

    62KB

  • MD5

    03a918db30abbc4b755c5c46efc5fae9

  • SHA1

    5a2b32ce05688145457ff3fdb9ca56d5f11ac8e5

  • SHA256

    3c9f4f9cf2e976a43362ff69b49efd91612029371dbb87d3d266081da9bc9de9

  • SHA512

    6f423fdda2b3f0863ccdc4d51725e9e488789cf2c8629bfa2cfce3d9468a8528781be0d55971964a3a586ddfda3f32edf9b8415160af6e1cc235df1f94eec5d6

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdc:TCjsIOtEvwDpj5HE/OUHnSMY9

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-19_03a918db30abbc4b755c5c46efc5fae9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-19_03a918db30abbc4b755c5c46efc5fae9_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    62KB

    MD5

    d5579e82c2bca2d1f38da9d37fb5e42a

    SHA1

    0a21825654a7983b10dc93a9b9fa2b91100d474e

    SHA256

    b71ba725bee90fb63a2709206be1beecbb1f32568f5a8fb3e5fbc6f8a87aa961

    SHA512

    c6b75a4c2536cfcf246d7c8f694ca700ae460d66d74b400e5faa065e63de62ca406258aa6da580c199d12b0172e8c8994f897620e6e836745328853dda41ad20

  • memory/1664-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/1664-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/1664-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/1664-2-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/1664-15-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/1664-13-0x0000000001DD0000-0x0000000001DDE000-memory.dmp

    Filesize

    56KB

  • memory/1664-27-0x0000000001DD0000-0x0000000001DDE000-memory.dmp

    Filesize

    56KB

  • memory/2936-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2936-20-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/2936-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2936-28-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB