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Analysis

  • max time kernel
    143s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/02/2024, 15:45

General

  • Target

    2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe

  • Size

    46KB

  • MD5

    94dbcba8ecef696b74ca20ad8302d53e

  • SHA1

    8079e8ba19a3c387b73ff96210049f643555b85e

  • SHA256

    ef4bde3f97d8af246fb2bafe7ef0b2a1f0440f5f986c46b1fc14d777830b8a48

  • SHA512

    59c38c51522fd261345d1ac6b6be65fe0896508dce2f39b88c2ec0c54ccbc666cbfb2555ef93354152f668f6728270db77b26b62bd5b3e626ffa420c4bf25246

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1ws2:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ1k

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4504
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:1544

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    11c0fa8df0e7d92d749ba5e2542976f2

    SHA1

    425618e77e8a0e94f70596d5a76dbaaa6d811c46

    SHA256

    9c43b4b8f2266a841ab6f547dde5319ade21a2a1f0f8b8268edb894d8af56193

    SHA512

    984f93aac4cd85557343feb39ea0e827c84a8dee9078baba5f9d884bb38db8b3388e943685a0e95ef643a6d9461a83f6cb0156e39fad8c8a929c2000c60fe228

  • memory/1544-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/1544-20-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/1544-19-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/1544-26-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4504-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4504-1-0x0000000000700000-0x0000000000706000-memory.dmp

    Filesize

    24KB

  • memory/4504-2-0x0000000000700000-0x0000000000706000-memory.dmp

    Filesize

    24KB

  • memory/4504-3-0x0000000000720000-0x0000000000726000-memory.dmp

    Filesize

    24KB