Analysis

  • max time kernel
    122s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09/09/2024, 03:34

General

  • Target
    MV XINHONG PARTICULARS.pdf.scr.exe
  • Size 659KB
  • Sample240909-d4ryzascrc
  • SHA256 cf5c60d3b7cbaf0ba4c33ca0d2a6710a00aec5671e2b494ade862dfde20ba011
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vipkeylogger

C2
  • https://api.telegram.org/bot7035334332:AAE8zHVleqNNXM6N6AzSZcjppZY2-hFR4fQ/sendMessage?chat_id=5229075943

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MV XINHONG PARTICULARS.pdf.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\MV XINHONG PARTICULARS.pdf.scr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\MV XINHONG PARTICULARS.pdf.scr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2392
    • C:\Users\Admin\AppData\Local\Temp\MV XINHONG PARTICULARS.pdf.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\MV XINHONG PARTICULARS.pdf.scr.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2428

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1960-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

        memory/1960-1-0x0000000000EE0000-0x0000000000F8A000-memory.dmp

        memory/1960-2-0x00000000743D0000-0x0000000074ABE000-memory.dmp

        memory/1960-3-0x0000000000370000-0x0000000000380000-memory.dmp

        memory/1960-4-0x00000000743DE000-0x00000000743DF000-memory.dmp

        memory/1960-5-0x00000000743D0000-0x0000000074ABE000-memory.dmp

        memory/1960-6-0x0000000005350000-0x00000000053DA000-memory.dmp

        memory/1960-23-0x00000000743D0000-0x0000000074ABE000-memory.dmp

        memory/2428-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/2428-13-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/2428-7-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/2428-11-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/2428-9-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/2428-22-0x00000000743D0000-0x0000000074ABE000-memory.dmp

        memory/2428-21-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/2428-19-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/2428-17-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/2428-24-0x00000000743D0000-0x0000000074ABE000-memory.dmp

        memory/2428-27-0x00000000743D0000-0x0000000074ABE000-memory.dmp