Analysis

  • max time kernel
    4294212s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    10/03/2022, 01:12

General

  • Target

    71de05a6489374d3454f66de31e2f720f4e199d57caec38ea01a01bde3591a31.exe

  • Size

    520KB

  • MD5

    ad6d2ef1e0cc7def5c5c7effa3bf948a

  • SHA1

    217d95930dc50619b2f734a7757cbc37fe575fcf

  • SHA256

    71de05a6489374d3454f66de31e2f720f4e199d57caec38ea01a01bde3591a31

  • SHA512

    4878db553bfa0430e80c9890807f99ff7400f9af3c54a51af13a3332fe758c1ec446608dfe6710b76253357b8cee78853823e1e70495ed1256813f43908ab452

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
  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71de05a6489374d3454f66de31e2f720f4e199d57caec38ea01a01bde3591a31.exe
    "C:\Users\Admin\AppData\Local\Temp\71de05a6489374d3454f66de31e2f720f4e199d57caec38ea01a01bde3591a31.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1776
    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
      2⤵
      • Executes dropped EXE
      • Deletes itself
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:564
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" http://www.helmet-heroes.com/
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1620
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1620 CREDAT:275457 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:896
      • 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:840
      • 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:724

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/564-70-0x0000000002155000-0x0000000002166000-memory.dmp

            Filesize

            68KB

          • memory/564-64-0x00000000747E0000-0x0000000074D8B000-memory.dmp

            Filesize

            5.7MB

          • memory/564-63-0x0000000002150000-0x0000000002151000-memory.dmp

            Filesize

            4KB

          • memory/564-74-0x0000000002166000-0x0000000002167000-memory.dmp

            Filesize

            4KB

          • memory/564-62-0x00000000747E0000-0x0000000074D8B000-memory.dmp

            Filesize

            5.7MB

          • memory/724-72-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/724-76-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/840-66-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/840-69-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/1776-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

            Filesize

            8KB

          • memory/1776-57-0x00000000747E0000-0x0000000074D8B000-memory.dmp

            Filesize

            5.7MB

          • memory/1776-56-0x0000000000780000-0x0000000000781000-memory.dmp

            Filesize

            4KB

          • memory/1776-55-0x00000000747E0000-0x0000000074D8B000-memory.dmp

            Filesize

            5.7MB