Analysis

  • max time kernel
    120s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2024 08:04

General

  • Target

    INQUIRY_pdf.exe

  • Size

    749KB

  • MD5

    3885966389f63ca00a45ff5aa413ec37

  • SHA1

    b154cc76e443fa9b3f697a430c95146e5d7261f3

  • SHA256

    0c8cf2991746319e1f1782ad0677c671abc6c3b53129fcbafd93ede7e60c4a8b

  • SHA512

    330b6f2f09ae9600134e4280f1a7b9f92ddc44b6fcb107bb42285eb810cb408a05b6c5f6b113991a6d365d37757caacf6f0315a3f75a1a6092d24fcb0501dfb9

  • SSDEEP

    12288:kbeXO/k6POZAJZhwDFkc+shhna2BE6tRcbi+gwrHBAnfBKPtM:KeXGk6WShoxhnaIRRc++guCAV

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 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\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 use of WriteProcessMemory
    PID:4528
    • 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:3252
    • 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:1208

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fvcyedgw.j5o.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1208-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1208-63-0x0000000006540000-0x0000000006590000-memory.dmp

    Filesize

    320KB

  • memory/1208-62-0x00000000066B0000-0x0000000006872000-memory.dmp

    Filesize

    1.8MB

  • memory/1208-61-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1208-22-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1208-14-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3252-20-0x00000000056A0000-0x0000000005706000-memory.dmp

    Filesize

    408KB

  • memory/3252-35-0x00000000060D0000-0x000000000611C000-memory.dmp

    Filesize

    304KB

  • memory/3252-60-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3252-57-0x00000000073B0000-0x00000000073B8000-memory.dmp

    Filesize

    32KB

  • memory/3252-56-0x00000000073D0000-0x00000000073EA000-memory.dmp

    Filesize

    104KB

  • memory/3252-55-0x00000000072D0000-0x00000000072E4000-memory.dmp

    Filesize

    80KB

  • memory/3252-54-0x00000000072C0000-0x00000000072CE000-memory.dmp

    Filesize

    56KB

  • memory/3252-15-0x00000000047D0000-0x0000000004806000-memory.dmp

    Filesize

    216KB

  • memory/3252-16-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3252-17-0x0000000004E40000-0x0000000005468000-memory.dmp

    Filesize

    6.2MB

  • memory/3252-18-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3252-19-0x0000000004DA0000-0x0000000004DC2000-memory.dmp

    Filesize

    136KB

  • memory/3252-53-0x0000000007290000-0x00000000072A1000-memory.dmp

    Filesize

    68KB

  • memory/3252-52-0x0000000007310000-0x00000000073A6000-memory.dmp

    Filesize

    600KB

  • memory/3252-21-0x0000000005710000-0x0000000005776000-memory.dmp

    Filesize

    408KB

  • memory/3252-51-0x0000000007100000-0x000000000710A000-memory.dmp

    Filesize

    40KB

  • memory/3252-32-0x0000000005880000-0x0000000005BD4000-memory.dmp

    Filesize

    3.3MB

  • memory/3252-33-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3252-34-0x0000000005D60000-0x0000000005D7E000-memory.dmp

    Filesize

    120KB

  • memory/3252-50-0x0000000007090000-0x00000000070AA000-memory.dmp

    Filesize

    104KB

  • memory/3252-36-0x0000000006320000-0x0000000006352000-memory.dmp

    Filesize

    200KB

  • memory/3252-37-0x0000000070A70000-0x0000000070ABC000-memory.dmp

    Filesize

    304KB

  • memory/3252-47-0x0000000006360000-0x000000000637E000-memory.dmp

    Filesize

    120KB

  • memory/3252-48-0x0000000006D60000-0x0000000006E03000-memory.dmp

    Filesize

    652KB

  • memory/3252-49-0x00000000076D0000-0x0000000007D4A000-memory.dmp

    Filesize

    6.5MB

  • memory/4528-8-0x000000007504E000-0x000000007504F000-memory.dmp

    Filesize

    4KB

  • memory/4528-0-0x000000007504E000-0x000000007504F000-memory.dmp

    Filesize

    4KB

  • memory/4528-4-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4528-5-0x00000000054A0000-0x00000000054AA000-memory.dmp

    Filesize

    40KB

  • memory/4528-6-0x00000000055B0000-0x000000000564C000-memory.dmp

    Filesize

    624KB

  • memory/4528-13-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4528-7-0x00000000056C0000-0x00000000056DC000-memory.dmp

    Filesize

    112KB

  • memory/4528-10-0x0000000006A20000-0x0000000006AAE000-memory.dmp

    Filesize

    568KB

  • memory/4528-9-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4528-3-0x0000000005300000-0x0000000005392000-memory.dmp

    Filesize

    584KB

  • memory/4528-2-0x00000000058B0000-0x0000000005E54000-memory.dmp

    Filesize

    5.6MB

  • memory/4528-1-0x0000000000840000-0x0000000000902000-memory.dmp

    Filesize

    776KB