Analysis

  • max time kernel
    234s
  • max time network
    275s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 04:24

General

  • Target

    822972deb4622e30ff40629f66ce291d0830f3aac840550fcdecd43cd7697680.exe

  • Size

    502KB

  • MD5

    ebcc0755522b8e1ac38b43992bbab045

  • SHA1

    6888d7957ce553b35f98442024b58f333e4ee590

  • SHA256

    822972deb4622e30ff40629f66ce291d0830f3aac840550fcdecd43cd7697680

  • SHA512

    1be29027426a78aabcd9e5c073dabec8591a4d68465cc6af730c048229c6f020477751824957c4cf5f8b644ea2e339dd20c0cac4901202703104e06448a95d75

  • SSDEEP

    6144:ALvbS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnx9zHq:ALvQtqB5urTIoYWBQk1E+VF9mOx9e

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    19921337

Signatures

  • HawkEye

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

  • NirSoft MailPassView 8 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 8 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 13 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
  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\822972deb4622e30ff40629f66ce291d0830f3aac840550fcdecd43cd7697680.exe
    "C:\Users\Admin\AppData\Local\Temp\822972deb4622e30ff40629f66ce291d0830f3aac840550fcdecd43cd7697680.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1680
    • 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 use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:664
      • 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:1580
      • 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:1264

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\SysInfo.txt
      Filesize

      102B

      MD5

      2bbaded4b262e4b89228e1b7338db34d

      SHA1

      18c6ba2925fa27e48a72ef4080022fd55435fb05

      SHA256

      d4dde51f0f2fe918c99a85cd700aa75a1a900cb196b5b91fb2c96d391a90977c

      SHA512

      453836e31bcfad261f4520848380720e411c5dcdba35254d4c8185f9a1a8881073c412ae53c6ceb03b9e453eaf3b97afb2179491b518a05fdd5ec0f71791f97f

    • C:\Users\Admin\AppData\Local\Temp\holderwb.txt
      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      502KB

      MD5

      ebcc0755522b8e1ac38b43992bbab045

      SHA1

      6888d7957ce553b35f98442024b58f333e4ee590

      SHA256

      822972deb4622e30ff40629f66ce291d0830f3aac840550fcdecd43cd7697680

      SHA512

      1be29027426a78aabcd9e5c073dabec8591a4d68465cc6af730c048229c6f020477751824957c4cf5f8b644ea2e339dd20c0cac4901202703104e06448a95d75

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      502KB

      MD5

      ebcc0755522b8e1ac38b43992bbab045

      SHA1

      6888d7957ce553b35f98442024b58f333e4ee590

      SHA256

      822972deb4622e30ff40629f66ce291d0830f3aac840550fcdecd43cd7697680

      SHA512

      1be29027426a78aabcd9e5c073dabec8591a4d68465cc6af730c048229c6f020477751824957c4cf5f8b644ea2e339dd20c0cac4901202703104e06448a95d75

    • \Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      502KB

      MD5

      ebcc0755522b8e1ac38b43992bbab045

      SHA1

      6888d7957ce553b35f98442024b58f333e4ee590

      SHA256

      822972deb4622e30ff40629f66ce291d0830f3aac840550fcdecd43cd7697680

      SHA512

      1be29027426a78aabcd9e5c073dabec8591a4d68465cc6af730c048229c6f020477751824957c4cf5f8b644ea2e339dd20c0cac4901202703104e06448a95d75

    • memory/664-70-0x0000000000265000-0x0000000000276000-memory.dmp
      Filesize

      68KB

    • memory/664-81-0x0000000000265000-0x0000000000276000-memory.dmp
      Filesize

      68KB

    • memory/664-57-0x0000000000000000-mapping.dmp
    • memory/664-62-0x00000000740B0000-0x000000007465B000-memory.dmp
      Filesize

      5.7MB

    • memory/664-64-0x00000000740B0000-0x000000007465B000-memory.dmp
      Filesize

      5.7MB

    • memory/1264-72-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1264-73-0x0000000000442628-mapping.dmp
    • memory/1264-76-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1264-77-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1264-80-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1580-66-0x0000000000411654-mapping.dmp
    • memory/1580-69-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1580-65-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1580-71-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1580-78-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1680-54-0x0000000075671000-0x0000000075673000-memory.dmp
      Filesize

      8KB

    • memory/1680-61-0x00000000740B0000-0x000000007465B000-memory.dmp
      Filesize

      5.7MB

    • memory/1680-55-0x00000000740B0000-0x000000007465B000-memory.dmp
      Filesize

      5.7MB