Analysis

  • max time kernel
    131s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2024, 04:33

General

  • Target
    AE RFx 12085262.exe
  • Size 724KB
  • Sample241106-e6x4favhjr
  • SHA256 88c6471b464a92a57786e37123f8f2b5a6f6df732d290481b58ac2650ecb8054
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vipkeylogger

Credentials

Signatures

  • VIPKeylogger

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

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 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 5 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AE RFx 12085262.exe
    "C:\Users\Admin\AppData\Local\Temp\AE RFx 12085262.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:2936
    • 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\AE RFx 12085262.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2004
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TUKbxq.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2520
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TUKbxq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFF20.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4464
    • C:\Users\Admin\AppData\Local\Temp\AE RFx 12085262.exe
      "C:\Users\Admin\AppData\Local\Temp\AE RFx 12085262.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:1400

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 6c2a5efa0670794aab78c5451616fb6cdf237af7726a0d8c1c067d61a5d3ce6a
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_gjul14at.ge1.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gjul14at.ge1.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmpFF20.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpFF20.tmp
        • Size 1KB
        • SHA256 149143ae3943a75c275f96bf826149e33ab4073673c0d7b23e4bde28cabd77d7
        • MD5 SHA1 SHA512

        memory/1400-91-0x0000000006660000-0x00000000066B0000-memory.dmp

        memory/1400-90-0x00000000067C0000-0x0000000006982000-memory.dmp

        memory/1400-32-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/2004-63-0x0000000075A90000-0x0000000075ADC000-memory.dmp

        memory/2004-18-0x00000000751E0000-0x0000000075990000-memory.dmp

        memory/2004-78-0x0000000007770000-0x0000000007781000-memory.dmp

        memory/2004-80-0x00000000077B0000-0x00000000077C4000-memory.dmp

        memory/2004-15-0x00000000028D0000-0x0000000002906000-memory.dmp

        memory/2004-16-0x00000000751E0000-0x0000000075990000-memory.dmp

        memory/2004-17-0x00000000053D0000-0x00000000059F8000-memory.dmp

        memory/2004-79-0x00000000077A0000-0x00000000077AE000-memory.dmp

        memory/2004-50-0x00000000062F0000-0x000000000633C000-memory.dmp

        memory/2004-49-0x0000000006240000-0x000000000625E000-memory.dmp

        memory/2004-81-0x00000000078B0000-0x00000000078CA000-memory.dmp

        memory/2004-89-0x00000000751E0000-0x0000000075990000-memory.dmp

        memory/2004-22-0x00000000751E0000-0x0000000075990000-memory.dmp

        memory/2004-24-0x0000000005220000-0x0000000005242000-memory.dmp

        memory/2520-25-0x0000000004DE0000-0x0000000004E46000-memory.dmp

        memory/2520-74-0x0000000007690000-0x0000000007D0A000-memory.dmp

        memory/2520-23-0x00000000751E0000-0x0000000075990000-memory.dmp

        memory/2520-88-0x00000000751E0000-0x0000000075990000-memory.dmp

        memory/2520-33-0x00000000055A0000-0x00000000058F4000-memory.dmp

        memory/2520-82-0x0000000007370000-0x0000000007378000-memory.dmp

        memory/2520-20-0x00000000751E0000-0x0000000075990000-memory.dmp

        memory/2520-19-0x00000000751E0000-0x0000000075990000-memory.dmp

        memory/2520-73-0x0000000006EF0000-0x0000000006F93000-memory.dmp

        memory/2520-77-0x00000000072D0000-0x0000000007366000-memory.dmp

        memory/2520-62-0x0000000006C80000-0x0000000006C9E000-memory.dmp

        memory/2520-52-0x0000000075A90000-0x0000000075ADC000-memory.dmp

        memory/2520-51-0x0000000006CA0000-0x0000000006CD2000-memory.dmp

        memory/2520-26-0x0000000004EC0000-0x0000000004F26000-memory.dmp

        memory/2520-75-0x0000000007050000-0x000000000706A000-memory.dmp

        memory/2520-76-0x00000000070C0000-0x00000000070CA000-memory.dmp

        memory/2936-10-0x0000000002A80000-0x0000000002B0C000-memory.dmp

        memory/2936-9-0x00000000751E0000-0x0000000075990000-memory.dmp

        memory/2936-8-0x00000000751EE000-0x00000000751EF000-memory.dmp

        memory/2936-7-0x00000000064F0000-0x000000000650C000-memory.dmp

        memory/2936-6-0x00000000053F0000-0x000000000548C000-memory.dmp

        memory/2936-48-0x00000000751E0000-0x0000000075990000-memory.dmp

        memory/2936-5-0x0000000005140000-0x000000000514A000-memory.dmp

        memory/2936-4-0x00000000751E0000-0x0000000075990000-memory.dmp

        memory/2936-3-0x0000000005170000-0x0000000005202000-memory.dmp

        memory/2936-0-0x00000000751EE000-0x00000000751EF000-memory.dmp

        memory/2936-2-0x0000000005680000-0x0000000005C24000-memory.dmp

        memory/2936-1-0x0000000000690000-0x000000000074A000-memory.dmp