Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-11-2024 17:39

General

  • Target

    INQUIRY_pdf.exe

  • Size

    750KB

  • MD5

    aad0e1f44c81477576e5b1a1a31f3513

  • SHA1

    aaa55fd38d696c09f0ba9b8511efac0c9d68b63a

  • SHA256

    5e8880438f921f4bd81f137cc9b4c44f1ba12b321a178d4d50a0601d75aef049

  • SHA512

    2f70c69d20a1d6f252c29bd8e2f01958a25e6710f8e4bbb47721a3a621be32503bfd66cf96981b77edf9a370492f4b6f60d1b7706c61dee3df5ca47724c8b44d

  • SSDEEP

    12288:k3qNW8BeviONx9C/1kmWRlgofeQELf5J2POsSY9K3sYKA:73wsmmWRlFQAPO1YwMA

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 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\INQUIRY_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\INQUIRY_pdf.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:1972
    • 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\INQUIRY_pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4808
    • C:\Users\Admin\AppData\Local\Temp\INQUIRY_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\INQUIRY_pdf.exe"
      2⤵
        PID:3196
      • C:\Users\Admin\AppData\Local\Temp\INQUIRY_pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\INQUIRY_pdf.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:1064

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gxc3wj0u.1na.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1064-12-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/1064-18-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1064-62-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1064-63-0x0000000006DD0000-0x0000000006F92000-memory.dmp

      Filesize

      1.8MB

    • memory/1064-64-0x0000000006C50000-0x0000000006CA0000-memory.dmp

      Filesize

      320KB

    • memory/1064-15-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1972-5-0x0000000005530000-0x000000000553A000-memory.dmp

      Filesize

      40KB

    • memory/1972-8-0x000000007464E000-0x000000007464F000-memory.dmp

      Filesize

      4KB

    • memory/1972-9-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1972-10-0x0000000005FF0000-0x0000000006002000-memory.dmp

      Filesize

      72KB

    • memory/1972-11-0x0000000007070000-0x00000000070FE000-memory.dmp

      Filesize

      568KB

    • memory/1972-7-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1972-14-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB

    • memory/1972-6-0x0000000005F50000-0x0000000005FEC000-memory.dmp

      Filesize

      624KB

    • memory/1972-0-0x000000007464E000-0x000000007464F000-memory.dmp

      Filesize

      4KB

    • memory/1972-4-0x0000000005340000-0x00000000053EA000-memory.dmp

      Filesize

      680KB

    • memory/1972-3-0x00000000051F0000-0x0000000005282000-memory.dmp

      Filesize

      584KB

    • memory/1972-2-0x0000000005700000-0x0000000005CA4000-memory.dmp

      Filesize

      5.6MB

    • memory/1972-1-0x0000000000730000-0x00000000007F0000-memory.dmp

      Filesize

      768KB

    • memory/4808-20-0x00000000058B0000-0x00000000058D2000-memory.dmp

      Filesize

      136KB

    • memory/4808-51-0x0000000007AB0000-0x0000000007ACA000-memory.dmp

      Filesize

      104KB

    • memory/4808-23-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4808-21-0x0000000005950000-0x00000000059B6000-memory.dmp

      Filesize

      408KB

    • memory/4808-29-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4808-34-0x0000000006170000-0x00000000064C4000-memory.dmp

      Filesize

      3.3MB

    • memory/4808-35-0x0000000006770000-0x000000000678E000-memory.dmp

      Filesize

      120KB

    • memory/4808-36-0x00000000067B0000-0x00000000067FC000-memory.dmp

      Filesize

      304KB

    • memory/4808-37-0x0000000006D40000-0x0000000006D72000-memory.dmp

      Filesize

      200KB

    • memory/4808-38-0x0000000070190000-0x00000000701DC000-memory.dmp

      Filesize

      304KB

    • memory/4808-48-0x0000000006D80000-0x0000000006D9E000-memory.dmp

      Filesize

      120KB

    • memory/4808-49-0x00000000079C0000-0x0000000007A63000-memory.dmp

      Filesize

      652KB

    • memory/4808-50-0x00000000080F0000-0x000000000876A000-memory.dmp

      Filesize

      6.5MB

    • memory/4808-22-0x00000000059C0000-0x0000000005A26000-memory.dmp

      Filesize

      408KB

    • memory/4808-52-0x0000000007B20000-0x0000000007B2A000-memory.dmp

      Filesize

      40KB

    • memory/4808-53-0x0000000007D30000-0x0000000007DC6000-memory.dmp

      Filesize

      600KB

    • memory/4808-54-0x0000000007CB0000-0x0000000007CC1000-memory.dmp

      Filesize

      68KB

    • memory/4808-55-0x0000000007CE0000-0x0000000007CEE000-memory.dmp

      Filesize

      56KB

    • memory/4808-56-0x0000000007CF0000-0x0000000007D04000-memory.dmp

      Filesize

      80KB

    • memory/4808-57-0x0000000007DF0000-0x0000000007E0A000-memory.dmp

      Filesize

      104KB

    • memory/4808-58-0x0000000007DD0000-0x0000000007DD8000-memory.dmp

      Filesize

      32KB

    • memory/4808-61-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4808-19-0x0000000005A40000-0x0000000006068000-memory.dmp

      Filesize

      6.2MB

    • memory/4808-16-0x0000000002E80000-0x0000000002EB6000-memory.dmp

      Filesize

      216KB

    • memory/4808-17-0x0000000074640000-0x0000000074DF0000-memory.dmp

      Filesize

      7.7MB