Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    11/11/2020, 11:42

General

  • Target
    0d5ff709cd566b8f8a2f26b6038306b664c7431d8bddbd90982b399b04d169e8.exe
  • Size 1.1MB
  • Sample201111-9hr55dmahe
  • SHA256 0d5ff709cd566b8f8a2f26b6038306b664c7431d8bddbd90982b399b04d169e8
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.casalsmd.com

  • Port

    587

  • Password

    Carolina123

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • 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.

  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0d5ff709cd566b8f8a2f26b6038306b664c7431d8bddbd90982b399b04d169e8.exe
    "C:\Users\Admin\AppData\Local\Temp\0d5ff709cd566b8f8a2f26b6038306b664c7431d8bddbd90982b399b04d169e8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1032
    • C:\Users\Admin\AppData\Local\Temp\0d5ff709cd566b8f8a2f26b6038306b664c7431d8bddbd90982b399b04d169e8.exe
      "C:\Users\Admin\AppData\Local\Temp\0d5ff709cd566b8f8a2f26b6038306b664c7431d8bddbd90982b399b04d169e8.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1228
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
        3⤵
          PID:1328
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
          3⤵
            PID:952

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/952-12-0x0000000000400000-0x0000000000458000-memory.dmp

            memory/952-14-0x0000000000400000-0x0000000000458000-memory.dmp

            memory/1032-0-0x0000000000400000-0x0000000000517000-memory.dmp

            memory/1228-4-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/1228-6-0x00000000003F2000-0x00000000003F3000-memory.dmp

            memory/1228-7-0x00000000002B0000-0x0000000000333000-memory.dmp

            memory/1228-5-0x0000000001E80000-0x0000000001F08000-memory.dmp

            memory/1228-3-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/1228-1-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/1328-9-0x0000000000400000-0x000000000041B000-memory.dmp

            memory/1328-11-0x0000000000400000-0x000000000041B000-memory.dmp

            memory/1476-15-0x000007FEF6120000-0x000007FEF639A000-memory.dmp