Analysis

  • max time kernel
    49s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09/11/2020, 20:58

General

  • Target
    NEW ORDER 4567.exe
  • Size 1.9MB
  • Sample201109-cyx4e6a7ce
  • SHA256 cfe33b2a83ab6125597d848a0fcfe2262e3d62dd070d81d7f283051cdb30548e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Path
  • C:\Users\Admin\AppData\Local\Temp\5FADD7138A\Log.txt

  • masslogger

Ransom Note
  • ################################################################# MassLogger v1.3.7.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 7 Professional 64bit Windows Serial Key: HYF8J-CVRMY-CM74G-RPHKF-PW487 CPU: Persocon Processor 2.5+ GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 11/11/2020 4:41:12 AM MassLogger Started: 11/11/2020 4:41:08 AM Interval: 2 hour MassLogger Process: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.samlogistics.pk

  • Port

    587

  • Password

    Seaimport121@

Signatures

  • MassLogger

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

  • MassLogger Main Payload 3 IoCs
  • 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.

  • 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
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEW ORDER 4567.exe
    "C:\Users\Admin\AppData\Local\Temp\NEW ORDER 4567.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\MSBuild.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:300

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/300-0-0x0000000000400000-0x00000000004A8000-memory.dmp

        memory/300-2-0x0000000000400000-0x00000000004A8000-memory.dmp

        memory/300-3-0x00000000742C0000-0x00000000749AE000-memory.dmp

        memory/300-4-0x0000000000400000-0x0000000000401000-memory.dmp

        memory/300-6-0x00000000003A0000-0x00000000003DE000-memory.dmp

        memory/300-7-0x00000000010B0000-0x00000000010BF000-memory.dmp