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Analysis

  • max time kernel
    151s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    13/07/2020, 06:50

General

  • Target

    d36fb8e51189e998623727a766a4d8ed.exe

  • Size

    1.1MB

  • MD5

    d36fb8e51189e998623727a766a4d8ed

  • SHA1

    afa53ad8b0f01071ab99d015c89d2846adfc0c54

  • SHA256

    6eb458072d13aa27fa36cfcd143e0f32af2caa2af5639cd3592cefe48811aaad

  • SHA512

    4442b88a5260c3de61c973004fee39a3f84e442c014deb475e01942c67e46ae0b57a09e6450f2f7090dccd78e7f6f205dc787dd45e95680b971c99ba9ff076b7

Malware Config

Signatures

  • UPX packed file 3 IoCs

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

  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • 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.

  • Executes dropped EXE 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1372 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • NTFS ADS 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops startup file 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\d36fb8e51189e998623727a766a4d8ed.exe
    "C:\Users\Admin\AppData\Local\Temp\d36fb8e51189e998623727a766a4d8ed.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1344
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      • NTFS ADS
      • Loads dropped DLL
      • Drops startup file
      PID:1224
      • C:\Users\Admin\AppData\Roaming\app\hjiwws.exe
        "C:\Users\Admin\AppData\Roaming\app\hjiwws.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: MapViewOfSection
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetThreadContext
        PID:1428
        • C:\Users\Admin\AppData\Roaming\app\hjiwws.exe
          "C:\Users\Admin\AppData\Roaming\app\hjiwws.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious use of AdjustPrivilegeToken
          PID:1600
        • C:\Users\Admin\AppData\Roaming\app\hjiwws.exe
          "C:\Users\Admin\AppData\Roaming\app\hjiwws.exe" 2 1600 65660
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:340

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1224-1-0x0000000000090000-0x0000000000091000-memory.dmp

    Filesize

    4KB

  • memory/1600-7-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/1600-12-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/1600-13-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/1600-14-0x0000000000730000-0x00000000007CA000-memory.dmp

    Filesize

    616KB

  • memory/1600-16-0x0000000000310000-0x00000000003A3000-memory.dmp

    Filesize

    588KB