Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 22:32

General

  • Target

    2024-05-23_9411346b2c125f5cce2521a180a78cf8_cryptolocker.exe

  • Size

    40KB

  • MD5

    9411346b2c125f5cce2521a180a78cf8

  • SHA1

    f1a527ff660a2f666c7bcb948f73800d9e998e42

  • SHA256

    614cdc88b72c234ea9990850cf438f8c10d1f9b6fb903ee88987d56972e272fa

  • SHA512

    e935fcddfdad6ab174148597b8b4b06685fd9dd5ccdb327e0090526b3bf5a10fdb1b5483b558e6fcf432d994a719af0d4ad75c9cbdb249634f2a895b8693e68a

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYljt:qDdFJy3QMOtEvwDpjjWMl7T6Z

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-05-23_9411346b2c125f5cce2521a180a78cf8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_9411346b2c125f5cce2521a180a78cf8_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3000
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    01fffef0b42ec141b0c5e352301617d7

    SHA1

    fcfe08f1567ef8fccc1c26aa85a71a327ec134a5

    SHA256

    acd276f2e9d44fd664d859568e25b9990de2d66aa28d7fb41ff876b2974e953b

    SHA512

    5f3eb1e4899ea03dd99432e0fcbb29508f80830c6844dcc388abf8d553edaa62570d6afe1bd56eaeca168a8b880a16aa76f5a01ec09357c0a71666fc2cf9d7b3

  • memory/2828-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2828-19-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/2828-26-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2828-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3000-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3000-1-0x00000000001E0000-0x00000000001E6000-memory.dmp

    Filesize

    24KB

  • memory/3000-2-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/3000-9-0x00000000001E0000-0x00000000001E6000-memory.dmp

    Filesize

    24KB

  • memory/3000-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB