Analysis

  • max time kernel
    138s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    22/02/2022, 21:09

General

  • Target

    0aa92ee64c4607e8c8c21151ee4c970f09309f27467cb6ba4e075084c3ccbbd8.exe

  • Size

    597KB

  • MD5

    30fd2ec9012ade78a3b8576efe2face6

  • SHA1

    71ead9bd3141349069ab3cbc617e7eeb5a6e5e12

  • SHA256

    0aa92ee64c4607e8c8c21151ee4c970f09309f27467cb6ba4e075084c3ccbbd8

  • SHA512

    1d432dc96947dfe858997b02c85d2aee5f220915b54b01380e458b1c3d027e49381d432f520199375f633b599002692441259735abe7e3e0bbe86388b0467c92

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
  • 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
  • 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.

  • Suspicious behavior: EnumeratesProcesses 2 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\0aa92ee64c4607e8c8c21151ee4c970f09309f27467cb6ba4e075084c3ccbbd8.exe
    "C:\Users\Admin\AppData\Local\Temp\0aa92ee64c4607e8c8c21151ee4c970f09309f27467cb6ba4e075084c3ccbbd8.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:960
    • 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:1036
      • 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:1872
      • 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:1764

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/960-55-0x00000000744F1000-0x00000000744F2000-memory.dmp

            Filesize

            4KB

          • memory/960-56-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

            Filesize

            4KB

          • memory/960-57-0x00000000744F2000-0x00000000744F4000-memory.dmp

            Filesize

            8KB

          • memory/960-54-0x0000000076151000-0x0000000076153000-memory.dmp

            Filesize

            8KB

          • memory/1036-62-0x00000000744F1000-0x00000000744F2000-memory.dmp

            Filesize

            4KB

          • memory/1036-64-0x00000000744F2000-0x00000000744F4000-memory.dmp

            Filesize

            8KB

          • memory/1036-66-0x0000000002046000-0x0000000002047000-memory.dmp

            Filesize

            4KB

          • memory/1036-63-0x0000000002030000-0x0000000002031000-memory.dmp

            Filesize

            4KB

          • memory/1764-70-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/1764-73-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/1872-67-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/1872-69-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB