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Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    19/02/2024, 05:54

General

  • Target

    2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe

  • Size

    71KB

  • MD5

    de78be6e204a16b6832f0721f8de4faf

  • SHA1

    61d087e5f2b677a8b801bbd30b9123825c2c388f

  • SHA256

    013b618ca206d38dfa4999c0c28010cf079921ec2d0a4adfecebbcb737848a17

  • SHA512

    15550d56bbfe9f9cd3e7f00d0c0f7d6d762295b67963c49d0cf366e5c6323ab06da29502e485c4e6094e6c023ffe7ed99a59fdee5a4a86b271ac782719eec7a9

  • SSDEEP

    1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKU1TB:DW60sllyWOtEvwDpjwF85h

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\2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    71KB

    MD5

    5b97d575556289eabb24ec3e85a40794

    SHA1

    f6d331ae92e446bb71ef7aa58c36eff0d9045d61

    SHA256

    04df6e1f1f64e6acc1de7e2b5249b52c7d066f39a787fbd558d571d93d34da40

    SHA512

    33c13a4c7f54611fadd5f32dcea61077c498651d2f2eaac284feece3978f61705a16dfbc8fef6fdb0bd55e99c7877cf9763ee63352bc7401e1b9ce4059c93739

  • memory/2160-17-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2968-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2968-1-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/2968-3-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/2968-2-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/2968-14-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB