Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-11-2024 04:10

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 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:1088
    • 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:4616
    • 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:2000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2vv4f33g.d40.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1088-8-0x000000007527E000-0x000000007527F000-memory.dmp

    Filesize

    4KB

  • memory/1088-3-0x00000000054B0000-0x0000000005542000-memory.dmp

    Filesize

    584KB

  • memory/1088-10-0x0000000008760000-0x00000000087EE000-memory.dmp

    Filesize

    568KB

  • memory/1088-9-0x0000000075270000-0x0000000075A20000-memory.dmp

    Filesize

    7.7MB

  • memory/1088-6-0x0000000075270000-0x0000000075A20000-memory.dmp

    Filesize

    7.7MB

  • memory/1088-5-0x00000000056E0000-0x000000000577C000-memory.dmp

    Filesize

    624KB

  • memory/1088-7-0x00000000058C0000-0x00000000058D8000-memory.dmp

    Filesize

    96KB

  • memory/1088-1-0x0000000000A50000-0x0000000000B32000-memory.dmp

    Filesize

    904KB

  • memory/1088-0-0x000000007527E000-0x000000007527F000-memory.dmp

    Filesize

    4KB

  • memory/1088-2-0x0000000005A60000-0x0000000006004000-memory.dmp

    Filesize

    5.6MB

  • memory/1088-4-0x0000000005400000-0x000000000540A000-memory.dmp

    Filesize

    40KB

  • memory/1088-14-0x0000000075270000-0x0000000075A20000-memory.dmp

    Filesize

    7.7MB

  • memory/2000-13-0x0000000075270000-0x0000000075A20000-memory.dmp

    Filesize

    7.7MB

  • memory/2000-63-0x0000000075270000-0x0000000075A20000-memory.dmp

    Filesize

    7.7MB

  • memory/2000-62-0x0000000006B40000-0x0000000006B90000-memory.dmp

    Filesize

    320KB

  • memory/2000-61-0x0000000006CB0000-0x0000000006E72000-memory.dmp

    Filesize

    1.8MB

  • memory/2000-27-0x0000000075270000-0x0000000075A20000-memory.dmp

    Filesize

    7.7MB

  • memory/2000-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/4616-28-0x0000000005B10000-0x0000000005E64000-memory.dmp

    Filesize

    3.3MB

  • memory/4616-50-0x0000000007440000-0x000000000745A000-memory.dmp

    Filesize

    104KB

  • memory/4616-19-0x0000000005A30000-0x0000000005A96000-memory.dmp

    Filesize

    408KB

  • memory/4616-20-0x0000000005AA0000-0x0000000005B06000-memory.dmp

    Filesize

    408KB

  • memory/4616-18-0x0000000005990000-0x00000000059B2000-memory.dmp

    Filesize

    136KB

  • memory/4616-33-0x0000000075270000-0x0000000075A20000-memory.dmp

    Filesize

    7.7MB

  • memory/4616-34-0x0000000006100000-0x000000000611E000-memory.dmp

    Filesize

    120KB

  • memory/4616-35-0x0000000006190000-0x00000000061DC000-memory.dmp

    Filesize

    304KB

  • memory/4616-36-0x00000000066D0000-0x0000000006702000-memory.dmp

    Filesize

    200KB

  • memory/4616-37-0x0000000070CA0000-0x0000000070CEC000-memory.dmp

    Filesize

    304KB

  • memory/4616-47-0x0000000006710000-0x000000000672E000-memory.dmp

    Filesize

    120KB

  • memory/4616-48-0x0000000007190000-0x0000000007233000-memory.dmp

    Filesize

    652KB

  • memory/4616-49-0x0000000007AC0000-0x000000000813A000-memory.dmp

    Filesize

    6.5MB

  • memory/4616-26-0x0000000075270000-0x0000000075A20000-memory.dmp

    Filesize

    7.7MB

  • memory/4616-51-0x00000000074B0000-0x00000000074BA000-memory.dmp

    Filesize

    40KB

  • memory/4616-52-0x00000000076C0000-0x0000000007756000-memory.dmp

    Filesize

    600KB

  • memory/4616-53-0x0000000007640000-0x0000000007651000-memory.dmp

    Filesize

    68KB

  • memory/4616-54-0x0000000007670000-0x000000000767E000-memory.dmp

    Filesize

    56KB

  • memory/4616-55-0x0000000007680000-0x0000000007694000-memory.dmp

    Filesize

    80KB

  • memory/4616-56-0x0000000007780000-0x000000000779A000-memory.dmp

    Filesize

    104KB

  • memory/4616-57-0x0000000007760000-0x0000000007768000-memory.dmp

    Filesize

    32KB

  • memory/4616-60-0x0000000075270000-0x0000000075A20000-memory.dmp

    Filesize

    7.7MB

  • memory/4616-17-0x0000000075270000-0x0000000075A20000-memory.dmp

    Filesize

    7.7MB

  • memory/4616-16-0x0000000005290000-0x00000000058B8000-memory.dmp

    Filesize

    6.2MB

  • memory/4616-15-0x0000000002800000-0x0000000002836000-memory.dmp

    Filesize

    216KB