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
    13-06-2024 02:52

General

  • Target

    2024-06-13_6a809ffecf50e550d89f100a6aefbe42_cryptolocker.exe

  • Size

    98KB

  • MD5

    6a809ffecf50e550d89f100a6aefbe42

  • SHA1

    522560f66ee16273cad603029d829acc5ac99933

  • SHA256

    72d693fdc25d25429a7084db88db2603b304fbf95cc126c905fd3236b8e71713

  • SHA512

    d6328190d209f485924031f23d84a810fbdb9af4da61cac1ccff797c4216d33f7e824632b71014f89ef1e54896e7d90c4c8194d2cae1fa843c01d98e85dd7cd4

  • SSDEEP

    1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp01m:AnBdOOtEvwDpj6zY

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\2024-06-13_6a809ffecf50e550d89f100a6aefbe42_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_6a809ffecf50e550d89f100a6aefbe42_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2336
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2180

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    98KB

    MD5

    01d9df4c038d2466afb8cce788b114ee

    SHA1

    3f6c96883a43aa575496740f111eb40bc8334c9b

    SHA256

    8b2f7229887fdb9323b65b9287f76b2c7ebae917f4de5d7fc9cceff864702b8c

    SHA512

    99e70a788e5f7fc487f62191addf9fcc8ffe406c1edd2f462a592f7d141a3dc76df97d89c520aed54c7558cec2ea51fbb64f6265737a397761289fc2f1e1e7e6

  • memory/2180-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2180-18-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2180-25-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2336-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2336-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2336-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2336-2-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB

  • memory/2336-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB