Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-09-2024 14:33

General

  • Target

    2024-09-27_782d9f15fc707dc0b15de3a9857dbda0_wannacry.exe

  • Size

    3.6MB

  • MD5

    782d9f15fc707dc0b15de3a9857dbda0

  • SHA1

    bdcdb8b66f769abb78ca323a9b14a71a7cc6d583

  • SHA256

    012b4742fe2f04d4fc828a3ed307e03d512f743063ca5dd0ab2aec93beed93e4

  • SHA512

    042dffd982dd3d1d69f10c44881c658d5e3c2486b69e39d4845b6d84b0760eb11f674295233a0e224bb4fdab2f73afcbe85a1eeedeec42f40424b550774949f5

  • SSDEEP

    49152:VnjrE/bcBVQej/1INRx+TSqTdX1HkQo6SAARdhnv:Z34oBhz1aRxcSUDk36SAEdhv

Malware Config

Signatures

  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Contacts a large (3267) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Executes dropped EXE 1 IoCs
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Drops file in Windows directory 1 IoCs
  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-27_782d9f15fc707dc0b15de3a9857dbda0_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-27_782d9f15fc707dc0b15de3a9857dbda0_wannacry.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2020
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2020 -s 140
        3⤵
        • Program crash
        PID:396
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2020 -s 260
        3⤵
        • Program crash
        PID:408
  • C:\Users\Admin\AppData\Local\Temp\2024-09-27_782d9f15fc707dc0b15de3a9857dbda0_wannacry.exe
    C:\Users\Admin\AppData\Local\Temp\2024-09-27_782d9f15fc707dc0b15de3a9857dbda0_wannacry.exe -m security
    1⤵
    • System Location Discovery: System Language Discovery
    PID:3592
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2020 -ip 2020
    1⤵
      PID:1284
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2020 -ip 2020
      1⤵
        PID:3956

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\tasksche.exe

        Filesize

        3.4MB

        MD5

        764b90f76074ad06b589c69f6e65fc36

        SHA1

        d42c9d1510a007f4289f98e86309e076fc2499db

        SHA256

        3b2edfff7b8ad08c31f303e22cc87ee3c5baedc029cabbb78f71bbebee52998e

        SHA512

        4a553168a362f7a99111b3dca705698e4279e734378a24716ad5a00625996b4565c563c01d5b258d9c467f8a15289e8659451ba2c78dded6d58afcdafedaccaa