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Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28/01/2024, 13:44

General

  • Target

    2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe

  • Size

    59KB

  • MD5

    8cfbc2bb39c4249f621b90d02ce47940

  • SHA1

    a58ae19e2b462f1ddefe05c6d01dc9e741195887

  • SHA256

    172e6e3b1e09fbf8396949de05409a8703e386d57a45c9a1e6543b7742e25189

  • SHA512

    d46b18cbcb184dd38d4fb8649c6a15d7be452333bec00a7c0587801db4aad85c8f996491136142ba7b3f44fcc172e35f3aabf60d4b904891bdcd47d410bbc6d7

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMTI1:TCjsIOtEvwDpj5HE/OUHnSML

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 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\2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-28_8cfbc2bb39c4249f621b90d02ce47940_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2828
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    60KB

    MD5

    a542188ff77ffe7ff3600bba3bf4f064

    SHA1

    43b4f9d0ce13b3d302104a6ace22c53168563d99

    SHA256

    b2f09174cab1a9d38a5cd36eebcb9a2d4cc333d98c3e8e150f2d7150d965e9f9

    SHA512

    88445f60ae44ba18e4388668dd5ca7f8358af3bbdb4f4a7694358f82917f9749f3b7094ee95a0dfb4cb29ee654ea76bc0e34066c3728abe306f3666173b49a76

  • memory/2788-16-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2788-18-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2788-25-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2828-1-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2828-0-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2828-2-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2828-3-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2828-15-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB