Analysis

  • max time kernel
    130s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/10/2024, 01:47

General

  • Target
    c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe
  • Size 857KB
  • Sample241023-b7tkvsvgna
  • SHA256 c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd
  • 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.

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe
    "C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4436
    • 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\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4424
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EUjCRllSu.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4576
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EUjCRllSu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE753.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3904
    • C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe
      "C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.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:1192

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        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 8c991078b6eed5e5e234cbdafc4f3d2e64671dd092cbada1b2952038c4f6fd62
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_zwfhylzo.0gp.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zwfhylzo.0gp.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmpE753.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpE753.tmp
        • Size 1KB
        • SHA256 6c2c214c7860977e9ffcbb70ca8e30a698149ad87e481ac234074b0a14bc7b20
        • MD5 SHA1 SHA512

        memory/1192-90-0x0000000006770000-0x00000000067C0000-memory.dmp

        memory/1192-89-0x00000000068E0000-0x0000000006AA2000-memory.dmp

        memory/1192-45-0x0000000000400000-0x0000000000448000-memory.dmp

        memory/4424-16-0x0000000004EC0000-0x0000000004EF6000-memory.dmp

        memory/4424-78-0x00000000079F0000-0x00000000079FE000-memory.dmp

        memory/4424-87-0x0000000074550000-0x0000000074D00000-memory.dmp

        memory/4424-81-0x0000000007AE0000-0x0000000007AE8000-memory.dmp

        memory/4424-15-0x0000000074550000-0x0000000074D00000-memory.dmp

        memory/4424-73-0x0000000007E00000-0x000000000847A000-memory.dmp

        memory/4424-17-0x0000000005550000-0x0000000005B78000-memory.dmp

        memory/4424-18-0x0000000074550000-0x0000000074D00000-memory.dmp

        memory/4424-71-0x0000000006A50000-0x0000000006A6E000-memory.dmp

        memory/4424-50-0x0000000007420000-0x0000000007452000-memory.dmp

        memory/4424-51-0x0000000070AE0000-0x0000000070B2C000-memory.dmp

        memory/4424-48-0x00000000064A0000-0x00000000064BE000-memory.dmp

        memory/4436-0-0x000000007455E000-0x000000007455F000-memory.dmp

        memory/4436-1-0x00000000005E0000-0x00000000006BC000-memory.dmp

        memory/4436-7-0x0000000005250000-0x000000000525E000-memory.dmp

        memory/4436-2-0x0000000005650000-0x0000000005BF4000-memory.dmp

        memory/4436-6-0x0000000005360000-0x00000000053FC000-memory.dmp

        memory/4436-5-0x0000000074550000-0x0000000074D00000-memory.dmp

        memory/4436-47-0x0000000074550000-0x0000000074D00000-memory.dmp

        memory/4436-9-0x0000000074550000-0x0000000074D00000-memory.dmp

        memory/4436-3-0x00000000050A0000-0x0000000005132000-memory.dmp

        memory/4436-4-0x0000000005160000-0x000000000516A000-memory.dmp

        memory/4436-10-0x00000000066E0000-0x000000000676C000-memory.dmp

        memory/4436-8-0x000000007455E000-0x000000007455F000-memory.dmp

        memory/4576-23-0x00000000057D0000-0x0000000005836000-memory.dmp

        memory/4576-61-0x0000000070AE0000-0x0000000070B2C000-memory.dmp

        memory/4576-74-0x00000000079A0000-0x00000000079BA000-memory.dmp

        memory/4576-19-0x0000000074550000-0x0000000074D00000-memory.dmp

        memory/4576-75-0x0000000007A10000-0x0000000007A1A000-memory.dmp

        memory/4576-76-0x0000000007C20000-0x0000000007CB6000-memory.dmp

        memory/4576-77-0x0000000007BA0000-0x0000000007BB1000-memory.dmp

        memory/4576-21-0x00000000055C0000-0x00000000055E2000-memory.dmp

        memory/4576-79-0x0000000007BE0000-0x0000000007BF4000-memory.dmp

        memory/4576-72-0x0000000007690000-0x0000000007733000-memory.dmp

        memory/4576-80-0x0000000007CE0000-0x0000000007CFA000-memory.dmp

        memory/4576-24-0x0000000074550000-0x0000000074D00000-memory.dmp

        memory/4576-49-0x0000000006710000-0x000000000675C000-memory.dmp

        memory/4576-35-0x00000000060D0000-0x0000000006424000-memory.dmp

        memory/4576-88-0x0000000074550000-0x0000000074D00000-memory.dmp

        memory/4576-22-0x0000000005760000-0x00000000057C6000-memory.dmp

        memory/4576-34-0x0000000074550000-0x0000000074D00000-memory.dmp