Analysis

  • max time kernel
    4294207s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    10/03/2022, 01:18

General

  • Target

    7171c9736984feb383e2db8153cec96b9af1c4cdd37e953ceb43a16b7c235137.exe

  • Size

    521KB

  • MD5

    bee7464a4a2158057dc9d750188c8149

  • SHA1

    e0b9118d8f18939a7be0a6a4c436e9b9465ab3a3

  • SHA256

    7171c9736984feb383e2db8153cec96b9af1c4cdd37e953ceb43a16b7c235137

  • SHA512

    952aea8509d9540baa95d1c4f4237f5eee83fd06defea2c0638df3fcb2200fa490ccd64bdd207b64d5af3e8aba979ad5f5ce08412f0580f1c8793802de489fa6

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.mail.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    YWhoQG..GhwvdG..

Signatures

  • HawkEye

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

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 4 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 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\7171c9736984feb383e2db8153cec96b9af1c4cdd37e953ceb43a16b7c235137.exe
    "C:\Users\Admin\AppData\Local\Temp\7171c9736984feb383e2db8153cec96b9af1c4cdd37e953ceb43a16b7c235137.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1092
    • 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"
      2⤵
      • Accesses Microsoft Outlook accounts
      PID:1908
    • 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"
      2⤵
        PID:1760
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 448
        2⤵
          PID:1064

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/1064-70-0x0000000000470000-0x0000000000471000-memory.dmp

              Filesize

              4KB

            • memory/1092-54-0x0000000075801000-0x0000000075803000-memory.dmp

              Filesize

              8KB

            • memory/1092-56-0x0000000000B40000-0x0000000000B41000-memory.dmp

              Filesize

              4KB

            • memory/1092-55-0x0000000074EB0000-0x000000007545B000-memory.dmp

              Filesize

              5.7MB

            • memory/1092-57-0x0000000074EB0000-0x000000007545B000-memory.dmp

              Filesize

              5.7MB

            • memory/1092-62-0x0000000000B45000-0x0000000000B56000-memory.dmp

              Filesize

              68KB

            • memory/1092-65-0x0000000000B56000-0x0000000000B57000-memory.dmp

              Filesize

              4KB

            • memory/1760-63-0x0000000000400000-0x0000000000458000-memory.dmp

              Filesize

              352KB

            • memory/1760-67-0x0000000000400000-0x0000000000458000-memory.dmp

              Filesize

              352KB

            • memory/1908-58-0x0000000000400000-0x000000000041B000-memory.dmp

              Filesize

              108KB

            • memory/1908-61-0x0000000000400000-0x000000000041B000-memory.dmp

              Filesize

              108KB