Analysis

  • max time kernel
    150s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    13-07-2020 06:50

General

  • Target

    fcca4c77f2f22f608aafee951d87a658.exe

  • Size

    1.1MB

  • MD5

    fcca4c77f2f22f608aafee951d87a658

  • SHA1

    90da9029f90c7447ba9e6c11e753c10e28039b29

  • SHA256

    e00adf465a40f8b65f0335f1e84d5b53cf4a2d1f96c97345925d2afe35fae98e

  • SHA512

    2dfb93c3b6992ded3cd1f3b629b7ab82385381f1dfb045c26acb36234d14bd6f91c8330111c7d30f646dbfd32e2b69fb77291a2b1b2973c6a21a013b83f855be

Malware Config

Signatures

  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • NTFS ADS 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Executes dropped EXE 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Drops startup file 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • UPX packed file 3 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • Suspicious behavior: EnumeratesProcesses 2712 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fcca4c77f2f22f608aafee951d87a658.exe
    "C:\Users\Admin\AppData\Local\Temp\fcca4c77f2f22f608aafee951d87a658.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious behavior: EnumeratesProcesses
    PID:3984
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • NTFS ADS
      • Drops startup file
      • Suspicious use of WriteProcessMemory
      PID:1980
      • C:\Users\Admin\AppData\Roaming\app\hjiwws.exe
        "C:\Users\Admin\AppData\Roaming\app\hjiwws.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        • Suspicious behavior: MapViewOfSection
        • Suspicious behavior: EnumeratesProcesses
        PID:3876
        • C:\Users\Admin\AppData\Roaming\app\hjiwws.exe
          "C:\Users\Admin\AppData\Roaming\app\hjiwws.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of AdjustPrivilegeToken
          PID:3640
        • C:\Users\Admin\AppData\Roaming\app\hjiwws.exe
          "C:\Users\Admin\AppData\Roaming\app\hjiwws.exe" 2 3640 60218
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:3932

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3640-4-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/3640-8-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/3640-10-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/3640-11-0x0000000002350000-0x00000000023EA000-memory.dmp

    Filesize

    616KB

  • memory/3640-12-0x00000000022A2000-0x00000000022A3000-memory.dmp

    Filesize

    4KB