Analysis

  • max time kernel
    117s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2024, 02:01

General

  • Target
    c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe
  • Size 864KB
  • Sample241004-cflavasdjc
  • SHA256 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.obaambalaj.com.tr

  • Port

    587

  • Password

    Beyza2022

Extracted

Family
  • vipkeylogger

Credentials

Signatures

  • VIPKeylogger

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

  • 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 3 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe
    "C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5036
    • 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\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3632
    • C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe
      "C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe"
      2⤵
        PID:5024
      • C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe
        "C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.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:4048

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          __PSScriptPolicyTest_4jlqcvlg.bqo.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4jlqcvlg.bqo.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          memory/3632-51-0x0000000006EF0000-0x0000000006EFA000-memory.dmp

          memory/3632-53-0x0000000007070000-0x0000000007081000-memory.dmp

          memory/3632-60-0x0000000074BE0000-0x0000000075390000-memory.dmp

          memory/3632-57-0x0000000007190000-0x0000000007198000-memory.dmp

          memory/3632-56-0x00000000071B0000-0x00000000071CA000-memory.dmp

          memory/3632-55-0x00000000070B0000-0x00000000070C4000-memory.dmp

          memory/3632-54-0x00000000070A0000-0x00000000070AE000-memory.dmp

          memory/3632-52-0x00000000070F0000-0x0000000007186000-memory.dmp

          memory/3632-50-0x0000000006E70000-0x0000000006E8A000-memory.dmp

          memory/3632-49-0x00000000074C0000-0x0000000007B3A000-memory.dmp

          memory/3632-48-0x0000000006B90000-0x0000000006C33000-memory.dmp

          memory/3632-47-0x0000000006100000-0x000000000611E000-memory.dmp

          memory/3632-37-0x0000000070610000-0x000000007065C000-memory.dmp

          memory/3632-34-0x0000000005B50000-0x0000000005B6E000-memory.dmp

          memory/3632-15-0x0000000002220000-0x0000000002256000-memory.dmp

          memory/3632-28-0x0000000074BE0000-0x0000000075390000-memory.dmp

          memory/3632-18-0x0000000004E10000-0x0000000005438000-memory.dmp

          memory/3632-36-0x0000000006B50000-0x0000000006B82000-memory.dmp

          memory/3632-19-0x0000000004BB0000-0x0000000004BD2000-memory.dmp

          memory/3632-21-0x0000000004CC0000-0x0000000004D26000-memory.dmp

          memory/3632-20-0x0000000004C50000-0x0000000004CB6000-memory.dmp

          memory/3632-29-0x0000000005640000-0x0000000005994000-memory.dmp

          memory/3632-35-0x0000000005B80000-0x0000000005BCC000-memory.dmp

          memory/3632-17-0x0000000074BE0000-0x0000000075390000-memory.dmp

          memory/3632-16-0x0000000074BE0000-0x0000000075390000-memory.dmp

          memory/4048-30-0x0000000074BE0000-0x0000000075390000-memory.dmp

          memory/4048-65-0x0000000074BE0000-0x0000000075390000-memory.dmp

          memory/4048-64-0x0000000006F50000-0x000000000747C000-memory.dmp

          memory/4048-13-0x0000000074BE0000-0x0000000075390000-memory.dmp

          memory/4048-11-0x0000000000400000-0x000000000044A000-memory.dmp

          memory/4048-63-0x00000000066E0000-0x0000000006730000-memory.dmp

          memory/4048-62-0x0000000006850000-0x0000000006A12000-memory.dmp

          memory/4048-61-0x0000000074BE0000-0x0000000075390000-memory.dmp

          memory/5036-10-0x000000000C560000-0x000000000C5FC000-memory.dmp

          memory/5036-2-0x0000000005B00000-0x00000000060A4000-memory.dmp

          memory/5036-7-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

          memory/5036-8-0x0000000074BE0000-0x0000000075390000-memory.dmp

          memory/5036-5-0x0000000005530000-0x000000000553A000-memory.dmp

          memory/5036-4-0x0000000074BE0000-0x0000000075390000-memory.dmp

          memory/5036-3-0x0000000005470000-0x0000000005502000-memory.dmp

          memory/5036-0-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

          memory/5036-9-0x0000000004EB0000-0x0000000004F3C000-memory.dmp

          memory/5036-6-0x0000000006BB0000-0x0000000006BCE000-memory.dmp

          memory/5036-14-0x0000000074BE0000-0x0000000075390000-memory.dmp

          memory/5036-1-0x00000000009D0000-0x0000000000AAE000-memory.dmp