Analysis

  • max time kernel
    82s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    10/12/2020, 11:14

General

  • Target
    QCXw2WXDjOalhVZ.exe
  • Size 931KB
  • Sample201210-7yxvm3hymx
  • SHA256 aeaa3fec34944cbad83383e98135ea619ede649f95f31edb2cbf1d8626761582
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.gmail.com

  • Port

    587

  • Password

    ayocj@2021

Signatures

  • MassLogger

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

  • MassLogger Main Payload 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QCXw2WXDjOalhVZ.exe
    "C:\Users\Admin\AppData\Local\Temp\QCXw2WXDjOalhVZ.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:736
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dAojOEJLIk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D00.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1028
    • C:\Users\Admin\AppData\Local\Temp\QCXw2WXDjOalhVZ.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1704
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\QCXw2WXDjOalhVZ.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:788

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/736-56-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-36-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-6-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-8-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-10-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-12-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-14-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-16-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-18-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-20-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-22-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-24-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-26-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-28-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-30-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-32-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-34-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-76-0x0000000000620000-0x0000000000650000-memory.dmp

        memory/736-38-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-40-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-42-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-44-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-46-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-48-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-50-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-52-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-5-0x0000000004830000-0x00000000048DB000-memory.dmp

        memory/736-54-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-58-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-60-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-62-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-64-0x00000000005B0000-0x00000000005C1000-memory.dmp

        memory/736-66-0x0000000000430000-0x000000000043E000-memory.dmp

        memory/736-67-0x0000000004C90000-0x0000000004D4B000-memory.dmp

        memory/736-2-0x0000000074390000-0x0000000074A7E000-memory.dmp

        memory/736-3-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

        memory/788-84-0x00000000048E0000-0x00000000048E1000-memory.dmp

        memory/788-90-0x0000000006010000-0x0000000006011000-memory.dmp

        memory/788-119-0x0000000006310000-0x0000000006311000-memory.dmp

        memory/788-118-0x0000000006300000-0x0000000006301000-memory.dmp

        memory/788-104-0x0000000006110000-0x0000000006111000-memory.dmp

        memory/788-103-0x0000000006280000-0x0000000006281000-memory.dmp

        memory/788-82-0x0000000074390000-0x0000000074A7E000-memory.dmp

        memory/788-83-0x00000000022E0000-0x00000000022E1000-memory.dmp

        memory/788-96-0x00000000061C0000-0x00000000061C1000-memory.dmp

        memory/788-95-0x0000000006050000-0x0000000006051000-memory.dmp

        memory/788-86-0x00000000025C0000-0x00000000025C1000-memory.dmp

        memory/788-87-0x0000000005240000-0x0000000005241000-memory.dmp

        memory/1704-85-0x0000000005E00000-0x0000000005E8D000-memory.dmp

        memory/1704-71-0x0000000000400000-0x0000000000486000-memory.dmp

        memory/1704-75-0x0000000074390000-0x0000000074A7E000-memory.dmp

        memory/1704-74-0x0000000000400000-0x0000000000486000-memory.dmp

        memory/1704-73-0x0000000000400000-0x0000000000486000-memory.dmp