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Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25/02/2024, 16:44

General

  • Target

    2024-02-25_c142dfa604169bf561ceeaf2e6a3c293_cryptolocker.exe

  • Size

    36KB

  • MD5

    c142dfa604169bf561ceeaf2e6a3c293

  • SHA1

    d33b2cb521f96d019778b73a38de473de3babfdf

  • SHA256

    2e6b3da16ac51388eeff8abe2ee6ef786d22691d4e65e6444f211e598ebc45d3

  • SHA512

    66114e1586217a65b0e6502454d6bee22e760f1a9eae281354cbc9b8c8d25269e167e54ca6b75b0b58f06ec236041c8b02cd69fa073ba152d55e73b362636e62

  • SSDEEP

    384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUqMV6U8zKvGaLLA4:bA74zYcgT/Ekd0ryfj86U8zbCA4

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 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\2024-02-25_c142dfa604169bf561ceeaf2e6a3c293_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-25_c142dfa604169bf561ceeaf2e6a3c293_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1260
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    36KB

    MD5

    00286b219cfc990345976f00de7965b4

    SHA1

    b7ce543103a540c5b88d36b31584625b39327922

    SHA256

    79f0667c398570199dd5675fbdd2edddf4fe23177e20af93e89d77c3e6c3c60b

    SHA512

    63f0568aa0fb511a30175e272bf3ddf5ffa00c2ccc30fe83854384ab584dbb3edf7e2dbf45bce0be73b1c2575e2565ed5aed7a5d7b0b04a2b757d6109db2a45f

  • memory/1260-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/1260-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/1260-3-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/2964-15-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB

  • memory/2964-16-0x00000000004A0000-0x00000000004A6000-memory.dmp

    Filesize

    24KB