Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2024 04:56

General

  • Target

    INQUIRY_pdf.exe

  • Size

    885KB

  • MD5

    0eff2e486b1c46cbf55bc4284355f1ee

  • SHA1

    f9a921a9ef66c0c1c0fcd6fe02aafc8461f05691

  • SHA256

    b7bbe88d2daceef7fdbd706adbdf6532976f23916701739ee0987f77f36b980a

  • SHA512

    b52122ca5444d606775d7426b7e19bd3090a89c486585c88b33b9fd57a7d87f0e591b7395b538646d93f2d9463d21f281ea5a4a57afb8c12a66d067dc0e3b20b

  • SSDEEP

    24576:t2xjaLCnYnbUX2bWOTk7k86ht45oS93GyIrKa:ADnYi6WMlxtxS93GNrK

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:1600
    • 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:1072
    • C:\Users\Admin\AppData\Local\Temp\INQUIRY_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\INQUIRY_pdf.exe"
      2⤵
        PID:3348
      • 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:2212

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_olh0pwbi.1pf.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1072-51-0x00000000073B0000-0x00000000073BA000-memory.dmp

      Filesize

      40KB

    • memory/1072-16-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/1072-60-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/1072-22-0x0000000005800000-0x0000000005866000-memory.dmp

      Filesize

      408KB

    • memory/1072-57-0x0000000007660000-0x0000000007668000-memory.dmp

      Filesize

      32KB

    • memory/1072-56-0x0000000007680000-0x000000000769A000-memory.dmp

      Filesize

      104KB

    • memory/1072-55-0x0000000007580000-0x0000000007594000-memory.dmp

      Filesize

      80KB

    • memory/1072-54-0x0000000007570000-0x000000000757E000-memory.dmp

      Filesize

      56KB

    • memory/1072-53-0x0000000007540000-0x0000000007551000-memory.dmp

      Filesize

      68KB

    • memory/1072-52-0x00000000075C0000-0x0000000007656000-memory.dmp

      Filesize

      600KB

    • memory/1072-23-0x00000000058E0000-0x0000000005946000-memory.dmp

      Filesize

      408KB

    • memory/1072-50-0x0000000007340000-0x000000000735A000-memory.dmp

      Filesize

      104KB

    • memory/1072-49-0x0000000007980000-0x0000000007FFA000-memory.dmp

      Filesize

      6.5MB

    • memory/1072-35-0x0000000006090000-0x00000000060DC000-memory.dmp

      Filesize

      304KB

    • memory/1072-17-0x00000000051D0000-0x00000000057F8000-memory.dmp

      Filesize

      6.2MB

    • memory/1072-48-0x00000000071F0000-0x0000000007293000-memory.dmp

      Filesize

      652KB

    • memory/1072-18-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/1072-19-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/1072-47-0x0000000006F90000-0x0000000006FAE000-memory.dmp

      Filesize

      120KB

    • memory/1072-21-0x0000000004F50000-0x0000000004F72000-memory.dmp

      Filesize

      136KB

    • memory/1072-37-0x0000000070580000-0x00000000705CC000-memory.dmp

      Filesize

      304KB

    • memory/1072-36-0x0000000006FB0000-0x0000000006FE2000-memory.dmp

      Filesize

      200KB

    • memory/1072-15-0x0000000004A70000-0x0000000004AA6000-memory.dmp

      Filesize

      216KB

    • memory/1072-33-0x0000000005A50000-0x0000000005DA4000-memory.dmp

      Filesize

      3.3MB

    • memory/1072-34-0x0000000006000000-0x000000000601E000-memory.dmp

      Filesize

      120KB

    • memory/1600-4-0x0000000004D70000-0x0000000004D7A000-memory.dmp

      Filesize

      40KB

    • memory/1600-9-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/1600-3-0x0000000004DA0000-0x0000000004E32000-memory.dmp

      Filesize

      584KB

    • memory/1600-5-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/1600-14-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/1600-1-0x0000000000290000-0x0000000000372000-memory.dmp

      Filesize

      904KB

    • memory/1600-6-0x0000000005030000-0x00000000050CC000-memory.dmp

      Filesize

      624KB

    • memory/1600-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

      Filesize

      4KB

    • memory/1600-10-0x0000000008150000-0x00000000081DE000-memory.dmp

      Filesize

      568KB

    • memory/1600-2-0x0000000005350000-0x00000000058F4000-memory.dmp

      Filesize

      5.6MB

    • memory/1600-8-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

      Filesize

      4KB

    • memory/1600-7-0x0000000005120000-0x0000000005138000-memory.dmp

      Filesize

      96KB

    • memory/2212-13-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/2212-20-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/2212-11-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2212-61-0x00000000069E0000-0x0000000006BA2000-memory.dmp

      Filesize

      1.8MB

    • memory/2212-62-0x0000000006880000-0x00000000068D0000-memory.dmp

      Filesize

      320KB

    • memory/2212-63-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/2212-64-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB