Analysis

  • max time kernel
    4294211s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    10/03/2022, 04:27

General

  • Target

    6679c3b3401b491bd63cd0c6dd0e446de086eefe5a2b57d56c42198f233b4e74.exe

  • Size

    617KB

  • MD5

    d22158dbf229b4dd99a606be9c479c1a

  • SHA1

    aecc92ca0361a94bb93a7b610026b26129d93c67

  • SHA256

    6679c3b3401b491bd63cd0c6dd0e446de086eefe5a2b57d56c42198f233b4e74

  • SHA512

    10d208ab4cb6413d7d79322dfa93a999822acbb1779a9b47d95473b9f134a554b7677d99051fee50a2a1ec9c621c56c21e96293c5e8c0c987f339b375ebbe955

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 7 IoCs
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6679c3b3401b491bd63cd0c6dd0e446de086eefe5a2b57d56c42198f233b4e74.exe
    "C:\Users\Admin\AppData\Local\Temp\6679c3b3401b491bd63cd0c6dd0e446de086eefe5a2b57d56c42198f233b4e74.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
      2⤵
      • Executes dropped EXE
      • Deletes itself
      • 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:268
      • 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⤵
        • Accesses Microsoft Outlook accounts
        PID:980
      • 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:1060

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/268-74-0x0000000002006000-0x0000000002007000-memory.dmp

            Filesize

            4KB

          • memory/268-62-0x0000000001FF0000-0x0000000001FF1000-memory.dmp

            Filesize

            4KB

          • memory/268-61-0x0000000074220000-0x00000000747CB000-memory.dmp

            Filesize

            5.7MB

          • memory/268-68-0x0000000001FF5000-0x0000000002006000-memory.dmp

            Filesize

            68KB

          • memory/980-64-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/980-67-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/1060-72-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/1060-69-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/1204-56-0x00000000001D0000-0x00000000001D1000-memory.dmp

            Filesize

            4KB

          • memory/1204-55-0x0000000074220000-0x00000000747CB000-memory.dmp

            Filesize

            5.7MB

          • memory/1204-54-0x0000000074E31000-0x0000000074E33000-memory.dmp

            Filesize

            8KB