Analysis

  • max time kernel
    130s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2024 04:24

General

  • Target

    b71fb82589e3532a9390352bc87f7c2edc2cd7fae723fe203500350a31559e17.exe

  • Size

    773KB

  • MD5

    4b393b41e5b7bdd02e481816bec9ff4a

  • SHA1

    35b60bdfa5130cc88b508f4fee9c226a2277517b

  • SHA256

    b71fb82589e3532a9390352bc87f7c2edc2cd7fae723fe203500350a31559e17

  • SHA512

    28ae160172d1d13a8b56dac51dd38f44c1cbf2c4755300d34adfc5c5638ee2375bc7cf8b29e8173933f0f3e672cd2e8e8469fa341e3356a0c7e34153e08ac0e3

  • SSDEEP

    12288:ipdY9shQgZCnoCKpJTH7uag0rQ8Vt7W68RNkBXKU5YYyTAo187Ce6m05/W:WdhlyzKrHSaVrQ8i6UkxKVaSR7m05/

Malware Config

Extracted

Family

vipkeylogger

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\b71fb82589e3532a9390352bc87f7c2edc2cd7fae723fe203500350a31559e17.exe
    "C:\Users\Admin\AppData\Local\Temp\b71fb82589e3532a9390352bc87f7c2edc2cd7fae723fe203500350a31559e17.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:4532
    • 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\b71fb82589e3532a9390352bc87f7c2edc2cd7fae723fe203500350a31559e17.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4300
    • C:\Users\Admin\AppData\Local\Temp\b71fb82589e3532a9390352bc87f7c2edc2cd7fae723fe203500350a31559e17.exe
      "C:\Users\Admin\AppData\Local\Temp\b71fb82589e3532a9390352bc87f7c2edc2cd7fae723fe203500350a31559e17.exe"
      2⤵
        PID:3308
      • C:\Users\Admin\AppData\Local\Temp\b71fb82589e3532a9390352bc87f7c2edc2cd7fae723fe203500350a31559e17.exe
        "C:\Users\Admin\AppData\Local\Temp\b71fb82589e3532a9390352bc87f7c2edc2cd7fae723fe203500350a31559e17.exe"
        2⤵
          PID:1804
        • C:\Users\Admin\AppData\Local\Temp\b71fb82589e3532a9390352bc87f7c2edc2cd7fae723fe203500350a31559e17.exe
          "C:\Users\Admin\AppData\Local\Temp\b71fb82589e3532a9390352bc87f7c2edc2cd7fae723fe203500350a31559e17.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:1428

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dfytlgsk.uu3.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/1428-63-0x0000000007370000-0x000000000789C000-memory.dmp

        Filesize

        5.2MB

      • memory/1428-62-0x0000000006AF0000-0x0000000006B40000-memory.dmp

        Filesize

        320KB

      • memory/1428-61-0x0000000006C70000-0x0000000006E32000-memory.dmp

        Filesize

        1.8MB

      • memory/1428-55-0x0000000000400000-0x0000000000448000-memory.dmp

        Filesize

        288KB

      • memory/4300-30-0x0000000006690000-0x00000000066DC000-memory.dmp

        Filesize

        304KB

      • memory/4300-32-0x000000006F500000-0x000000006F54C000-memory.dmp

        Filesize

        304KB

      • memory/4300-60-0x0000000074CC0000-0x0000000075470000-memory.dmp

        Filesize

        7.7MB

      • memory/4300-54-0x0000000007A30000-0x0000000007A38000-memory.dmp

        Filesize

        32KB

      • memory/4300-53-0x0000000007A50000-0x0000000007A6A000-memory.dmp

        Filesize

        104KB

      • memory/4300-52-0x0000000007950000-0x0000000007964000-memory.dmp

        Filesize

        80KB

      • memory/4300-11-0x0000000004E10000-0x0000000004E46000-memory.dmp

        Filesize

        216KB

      • memory/4300-12-0x0000000074CC0000-0x0000000075470000-memory.dmp

        Filesize

        7.7MB

      • memory/4300-14-0x0000000005530000-0x0000000005B58000-memory.dmp

        Filesize

        6.2MB

      • memory/4300-13-0x0000000074CC0000-0x0000000075470000-memory.dmp

        Filesize

        7.7MB

      • memory/4300-15-0x0000000074CC0000-0x0000000075470000-memory.dmp

        Filesize

        7.7MB

      • memory/4300-16-0x0000000005310000-0x0000000005332000-memory.dmp

        Filesize

        136KB

      • memory/4300-17-0x0000000005B60000-0x0000000005BC6000-memory.dmp

        Filesize

        408KB

      • memory/4300-18-0x0000000005C40000-0x0000000005CA6000-memory.dmp

        Filesize

        408KB

      • memory/4300-51-0x0000000007940000-0x000000000794E000-memory.dmp

        Filesize

        56KB

      • memory/4300-28-0x0000000005DE0000-0x0000000006134000-memory.dmp

        Filesize

        3.3MB

      • memory/4300-29-0x00000000063F0000-0x000000000640E000-memory.dmp

        Filesize

        120KB

      • memory/4300-50-0x0000000007910000-0x0000000007921000-memory.dmp

        Filesize

        68KB

      • memory/4300-31-0x00000000069B0000-0x00000000069E2000-memory.dmp

        Filesize

        200KB

      • memory/4300-49-0x0000000007990000-0x0000000007A26000-memory.dmp

        Filesize

        600KB

      • memory/4300-43-0x0000000074CC0000-0x0000000075470000-memory.dmp

        Filesize

        7.7MB

      • memory/4300-42-0x0000000006990000-0x00000000069AE000-memory.dmp

        Filesize

        120KB

      • memory/4300-44-0x0000000074CC0000-0x0000000075470000-memory.dmp

        Filesize

        7.7MB

      • memory/4300-45-0x00000000075E0000-0x0000000007683000-memory.dmp

        Filesize

        652KB

      • memory/4300-46-0x0000000007D60000-0x00000000083DA000-memory.dmp

        Filesize

        6.5MB

      • memory/4300-47-0x0000000007710000-0x000000000772A000-memory.dmp

        Filesize

        104KB

      • memory/4300-48-0x0000000007780000-0x000000000778A000-memory.dmp

        Filesize

        40KB

      • memory/4532-6-0x00000000053E0000-0x00000000053FE000-memory.dmp

        Filesize

        120KB

      • memory/4532-0-0x0000000074CCE000-0x0000000074CCF000-memory.dmp

        Filesize

        4KB

      • memory/4532-5-0x0000000005250000-0x000000000525A000-memory.dmp

        Filesize

        40KB

      • memory/4532-10-0x000000000AE50000-0x000000000AEEC000-memory.dmp

        Filesize

        624KB

      • memory/4532-9-0x00000000083C0000-0x000000000844E000-memory.dmp

        Filesize

        568KB

      • memory/4532-8-0x0000000074CC0000-0x0000000075470000-memory.dmp

        Filesize

        7.7MB

      • memory/4532-4-0x0000000074CC0000-0x0000000075470000-memory.dmp

        Filesize

        7.7MB

      • memory/4532-57-0x0000000074CC0000-0x0000000075470000-memory.dmp

        Filesize

        7.7MB

      • memory/4532-7-0x0000000074CCE000-0x0000000074CCF000-memory.dmp

        Filesize

        4KB

      • memory/4532-3-0x0000000005270000-0x0000000005302000-memory.dmp

        Filesize

        584KB

      • memory/4532-2-0x0000000005950000-0x0000000005EF4000-memory.dmp

        Filesize

        5.6MB

      • memory/4532-1-0x0000000000780000-0x0000000000848000-memory.dmp

        Filesize

        800KB