Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    19-03-2024 20:26

General

  • Target

    2024-03-19_133ea4e0017ac7f3f08c701c5b924b96_cryptolocker.exe

  • Size

    52KB

  • MD5

    133ea4e0017ac7f3f08c701c5b924b96

  • SHA1

    c36f09aa44894cfee08a85871dc878e3464fe0d3

  • SHA256

    48012e1ba901ab6b720b5d0f31faa9cc120328bec0dd74c144968163f4bf9ba3

  • SHA512

    e82d90ea306ef6ffa254b0e93d574c882d6746ff359f97d6a64a62503098369c0e7584748c85d1f65983981eb3751644c40d1922f2514a9f4d15ea58e5148275

  • SSDEEP

    768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIRszW:79mqyNhQMOtEvwDpjBxe8TpXRSW

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 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\2024-03-19_133ea4e0017ac7f3f08c701c5b924b96_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-19_133ea4e0017ac7f3f08c701c5b924b96_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2356
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    53KB

    MD5

    93ca00105654b8cf46ae5e2c0423c011

    SHA1

    aa5b676046ea18bb6c7432ae67d531b4113c47df

    SHA256

    111966d6f807bc34cb7bb3b8f7f92fb004ddab6a7530aed5d97004ffcbc262bb

    SHA512

    1e171f630c54698e4e8f3c0ae055f861dbd42d6302751e78106c2732dafd915d3d3a476b71753bfac2b644d51b36acd19c2140cfbadab293e2ca1a71df9e9805

  • memory/2356-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2356-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2356-2-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2356-3-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2356-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2636-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2636-18-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2636-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB