Analysis

  • max time kernel
    4294204s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    10/03/2022, 00:20

General

  • Target

    74e89c8544343ab94dba1506711b6bad2d3de43d190f6afaefb6bff220b9efdf.exe

  • Size

    503KB

  • MD5

    9269d21929cfecc5aec59c9ed836e91d

  • SHA1

    bb1faaa3de1d17f1e34f69bf30fef5fabbc29bf0

  • SHA256

    74e89c8544343ab94dba1506711b6bad2d3de43d190f6afaefb6bff220b9efdf

  • SHA512

    dd53a6799ade998308581b1d145b9fa36c3e2a45d9b150e3a95d13dfb492e30c551bf515c22f67cbd19d0c5e75fdb375e0b4f026087f421e65b2cae8ca42fe48

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    tobias420

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
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74e89c8544343ab94dba1506711b6bad2d3de43d190f6afaefb6bff220b9efdf.exe
    "C:\Users\Admin\AppData\Local\Temp\74e89c8544343ab94dba1506711b6bad2d3de43d190f6afaefb6bff220b9efdf.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" http://www.google.com/
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1164
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1164 CREDAT:275457 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1644
    • 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:600
    • 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⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2000

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/600-62-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/600-59-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/2000-67-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/2000-64-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/2016-58-0x0000000000BE6000-0x0000000000BE7000-memory.dmp

          Filesize

          4KB

        • memory/2016-54-0x0000000075751000-0x0000000075753000-memory.dmp

          Filesize

          8KB

        • memory/2016-57-0x0000000074840000-0x0000000074DEB000-memory.dmp

          Filesize

          5.7MB

        • memory/2016-55-0x0000000074840000-0x0000000074DEB000-memory.dmp

          Filesize

          5.7MB

        • memory/2016-56-0x0000000000BD0000-0x0000000000BD1000-memory.dmp

          Filesize

          4KB