Analysis

  • max time kernel
    129s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2024, 05:46

General

  • Target
    3279f79164633c0881c50971c98ca39bc9367111410f77582700468f2c0e3dd1.exe
  • Size 743KB
  • Sample241002-gglefstflg
  • SHA256 3279f79164633c0881c50971c98ca39bc9367111410f77582700468f2c0e3dd1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vipkeylogger

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 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\3279f79164633c0881c50971c98ca39bc9367111410f77582700468f2c0e3dd1.exe
    "C:\Users\Admin\AppData\Local\Temp\3279f79164633c0881c50971c98ca39bc9367111410f77582700468f2c0e3dd1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3272
    • 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\3279f79164633c0881c50971c98ca39bc9367111410f77582700468f2c0e3dd1.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4500
    • C:\Users\Admin\AppData\Local\Temp\3279f79164633c0881c50971c98ca39bc9367111410f77582700468f2c0e3dd1.exe
      "C:\Users\Admin\AppData\Local\Temp\3279f79164633c0881c50971c98ca39bc9367111410f77582700468f2c0e3dd1.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:2852

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        3279f79164633c0881c50971c98ca39bc9367111410f77582700468f2c0e3dd1.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\3279f79164633c0881c50971c98ca39bc9367111410f77582700468f2c0e3dd1.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        __PSScriptPolicyTest_jpxlpk2u.o2o.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jpxlpk2u.o2o.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        memory/2852-23-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        memory/2852-11-0x0000000000400000-0x000000000044A000-memory.dmp

        memory/2852-64-0x00000000063B0000-0x0000000006400000-memory.dmp

        memory/2852-63-0x0000000006510000-0x00000000066D2000-memory.dmp

        memory/2852-62-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        memory/2852-61-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        memory/2852-14-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        memory/3272-1-0x00000000009B0000-0x0000000000A70000-memory.dmp

        memory/3272-3-0x0000000005520000-0x00000000055B2000-memory.dmp

        memory/3272-9-0x00000000015B0000-0x000000000163C000-memory.dmp

        memory/3272-2-0x0000000005A30000-0x0000000005FD4000-memory.dmp

        memory/3272-15-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        memory/3272-8-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        memory/3272-4-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        memory/3272-5-0x0000000005480000-0x000000000548A000-memory.dmp

        memory/3272-6-0x0000000006DE0000-0x0000000006DFE000-memory.dmp

        memory/3272-7-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

        memory/3272-10-0x000000000C790000-0x000000000C82C000-memory.dmp

        memory/3272-0-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

        memory/4500-35-0x0000000006930000-0x000000000697C000-memory.dmp

        memory/4500-50-0x0000000007BC0000-0x0000000007BDA000-memory.dmp

        memory/4500-21-0x0000000005980000-0x00000000059E6000-memory.dmp

        memory/4500-22-0x0000000005910000-0x0000000005976000-memory.dmp

        memory/4500-34-0x00000000068A0000-0x00000000068BE000-memory.dmp

        memory/4500-24-0x00000000061F0000-0x0000000006544000-memory.dmp

        memory/4500-36-0x0000000007A40000-0x0000000007A72000-memory.dmp

        memory/4500-47-0x0000000007A00000-0x0000000007A1E000-memory.dmp

        memory/4500-37-0x0000000070A00000-0x0000000070A4C000-memory.dmp

        memory/4500-48-0x0000000007A80000-0x0000000007B23000-memory.dmp

        memory/4500-49-0x0000000008210000-0x000000000888A000-memory.dmp

        memory/4500-19-0x00000000057E0000-0x0000000005802000-memory.dmp

        memory/4500-51-0x0000000007C30000-0x0000000007C3A000-memory.dmp

        memory/4500-52-0x0000000007E40000-0x0000000007ED6000-memory.dmp

        memory/4500-53-0x0000000007DC0000-0x0000000007DD1000-memory.dmp

        memory/4500-54-0x0000000007E00000-0x0000000007E0E000-memory.dmp

        memory/4500-55-0x0000000007E10000-0x0000000007E24000-memory.dmp

        memory/4500-56-0x0000000007F00000-0x0000000007F1A000-memory.dmp

        memory/4500-57-0x0000000007EE0000-0x0000000007EE8000-memory.dmp

        memory/4500-60-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        memory/4500-20-0x0000000074FF0000-0x00000000757A0000-memory.dmp

        memory/4500-18-0x0000000005B80000-0x00000000061A8000-memory.dmp

        memory/4500-16-0x0000000002FC0000-0x0000000002FF6000-memory.dmp

        memory/4500-17-0x0000000074FF0000-0x00000000757A0000-memory.dmp