Analysis

  • max time kernel
    117s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 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⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2624
    • 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:1700
    • 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:4860

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        MV XINHONG PARTICULARS.pdf.scr.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\MV XINHONG PARTICULARS.pdf.scr.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        __PSScriptPolicyTest_wdsuvn2y.tyu.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wdsuvn2y.tyu.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        memory/1700-36-0x0000000005FE0000-0x0000000006012000-memory.dmp

        memory/1700-22-0x0000000004B70000-0x0000000004BD6000-memory.dmp

        memory/1700-55-0x0000000006F80000-0x0000000006F94000-memory.dmp

        memory/1700-54-0x0000000006F70000-0x0000000006F7E000-memory.dmp

        memory/1700-53-0x0000000006F40000-0x0000000006F51000-memory.dmp

        memory/1700-52-0x0000000006FC0000-0x0000000007056000-memory.dmp

        memory/1700-51-0x0000000006DB0000-0x0000000006DBA000-memory.dmp

        memory/1700-49-0x0000000007380000-0x00000000079FA000-memory.dmp

        memory/1700-50-0x0000000006D40000-0x0000000006D5A000-memory.dmp

        memory/1700-18-0x0000000004C60000-0x0000000005288000-memory.dmp

        memory/1700-60-0x0000000075280000-0x0000000075A30000-memory.dmp

        memory/1700-35-0x0000000005A40000-0x0000000005A8C000-memory.dmp

        memory/1700-47-0x0000000006020000-0x000000000603E000-memory.dmp

        memory/1700-16-0x00000000020F0000-0x0000000002126000-memory.dmp

        memory/1700-17-0x0000000075280000-0x0000000075A30000-memory.dmp

        memory/1700-19-0x0000000075280000-0x0000000075A30000-memory.dmp

        memory/1700-20-0x0000000004A60000-0x0000000004A82000-memory.dmp

        memory/1700-37-0x0000000070CB0000-0x0000000070CFC000-memory.dmp

        memory/1700-48-0x0000000006A00000-0x0000000006AA3000-memory.dmp

        memory/1700-21-0x0000000004B00000-0x0000000004B66000-memory.dmp

        memory/1700-57-0x0000000007060000-0x0000000007068000-memory.dmp

        memory/1700-56-0x0000000007080000-0x000000000709A000-memory.dmp

        memory/1700-33-0x00000000053D0000-0x0000000005724000-memory.dmp

        memory/1700-34-0x0000000005A00000-0x0000000005A1E000-memory.dmp

        memory/2624-0-0x000000007528E000-0x000000007528F000-memory.dmp

        memory/2624-1-0x0000000000500000-0x00000000005AA000-memory.dmp

        memory/2624-3-0x0000000005000000-0x0000000005092000-memory.dmp

        memory/2624-15-0x0000000075280000-0x0000000075A30000-memory.dmp

        memory/2624-2-0x0000000005510000-0x0000000005AB4000-memory.dmp

        memory/2624-10-0x0000000008C30000-0x0000000008CCC000-memory.dmp

        memory/2624-9-0x00000000064A0000-0x000000000652A000-memory.dmp

        memory/2624-8-0x0000000075280000-0x0000000075A30000-memory.dmp

        memory/2624-7-0x000000007528E000-0x000000007528F000-memory.dmp

        memory/2624-6-0x00000000052A0000-0x00000000052B0000-memory.dmp

        memory/2624-4-0x0000000004FA0000-0x0000000004FAA000-memory.dmp

        memory/2624-5-0x0000000075280000-0x0000000075A30000-memory.dmp

        memory/4860-11-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/4860-23-0x0000000075280000-0x0000000075A30000-memory.dmp

        memory/4860-14-0x0000000075280000-0x0000000075A30000-memory.dmp

        memory/4860-61-0x0000000075280000-0x0000000075A30000-memory.dmp

        memory/4860-62-0x00000000063C0000-0x0000000006582000-memory.dmp

        memory/4860-63-0x0000000006250000-0x00000000062A0000-memory.dmp

        memory/4860-64-0x0000000006AC0000-0x0000000006FEC000-memory.dmp

        memory/4860-65-0x0000000075280000-0x0000000075A30000-memory.dmp