Analysis

  • max time kernel
    104s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-11-2024 16:40

General

  • Target

    TEKLFTALEPVEFYATTEKLF_xlxs.exe

  • Size

    3.2MB

  • MD5

    e3089a51cb8e5ea6a8b180929d7035df

  • SHA1

    48af8061347ba332ef963fd776b4740bc0b5e89c

  • SHA256

    682f2d80ff4ce0051e4f69035c89f9b30e7fc019aead7dd4c2f02b4fa2583851

  • SHA512

    186f6f8272a4899d14fce91f48f574c7fa57fd8ccddbdb438128b390931bc120c9bcf1b66ddda6c60b6a618a676837477ba132e9cda1508f7665e32c54e257d9

  • SSDEEP

    24576:JIpiKqbfBJCX29z/MUXtDUcBNNXdA1Dql+mcnwHN4zd:SpiKqbfBJYa5tDUo7XSol+mcnwtad

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
  • 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.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TEKLFTALEPVEFYATTEKLF_xlxs.exe
    "C:\Users\Admin\AppData\Local\Temp\TEKLFTALEPVEFYATTEKLF_xlxs.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1632
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.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:2924
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
      2⤵
        PID:1640

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1632-0-0x00007FFC61BE3000-0x00007FFC61BE5000-memory.dmp

      Filesize

      8KB

    • memory/1632-1-0x000001F8D63F0000-0x000001F8D63F8000-memory.dmp

      Filesize

      32KB

    • memory/1632-2-0x00007FFC61BE0000-0x00007FFC626A1000-memory.dmp

      Filesize

      10.8MB

    • memory/1632-3-0x000001F8F0890000-0x000001F8F092C000-memory.dmp

      Filesize

      624KB

    • memory/1632-9-0x00007FFC61BE0000-0x00007FFC626A1000-memory.dmp

      Filesize

      10.8MB

    • memory/2924-8-0x0000000074F40000-0x00000000756F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2924-6-0x0000000005E80000-0x0000000006424000-memory.dmp

      Filesize

      5.6MB

    • memory/2924-7-0x00000000057B0000-0x000000000584C000-memory.dmp

      Filesize

      624KB

    • memory/2924-5-0x0000000074F4E000-0x0000000074F4F000-memory.dmp

      Filesize

      4KB

    • memory/2924-4-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2924-10-0x0000000006B40000-0x0000000006D02000-memory.dmp

      Filesize

      1.8MB

    • memory/2924-11-0x00000000069C0000-0x0000000006A10000-memory.dmp

      Filesize

      320KB

    • memory/2924-12-0x0000000074F4E000-0x0000000074F4F000-memory.dmp

      Filesize

      4KB

    • memory/2924-13-0x0000000074F40000-0x00000000756F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2924-14-0x0000000006D10000-0x0000000006DA2000-memory.dmp

      Filesize

      584KB

    • memory/2924-15-0x0000000006AB0000-0x0000000006ABA000-memory.dmp

      Filesize

      40KB