Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/02/2025, 10:12

General

  • Target

    BugSplat64.dll

  • Size

    8.5MB

  • MD5

    1ff0255fb75d95d65da33e95cc93d871

  • SHA1

    5e59e19d377381faa9c842b3abc53cd1d15c6451

  • SHA256

    b28a3906a0ea16e8766f9c14ed934e1f689cf5b0d95c5463bd3e4de97873c046

  • SHA512

    b4c693f3499be2a7b38f68caf9241f7f3fe917b329e480420270e342c7a7d398747700ee33de05e08b52bc5ca3b4636ade3a01cc299006d01f0c4cb88a4ceaa4

  • SSDEEP

    98304:1gaqeCWnlBVJKsWZiV5wn6dMPdXPE7m2PPf1Gf6:iaqeznl/wsWZiVG6I2NGf

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.groupscrea.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    cletus1905@

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
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 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 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\BugSplat64.dll,#1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
      2⤵
        PID:3796
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.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:2864

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2108-0-0x0000027F0A120000-0x0000027F0A130000-memory.dmp

      Filesize

      64KB

    • memory/2864-1-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/2864-2-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/2864-3-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/2864-4-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/2864-5-0x00000000748CE000-0x00000000748CF000-memory.dmp

      Filesize

      4KB

    • memory/2864-6-0x00000000056E0000-0x0000000005730000-memory.dmp

      Filesize

      320KB

    • memory/2864-8-0x0000000005CE0000-0x0000000006284000-memory.dmp

      Filesize

      5.6MB

    • memory/2864-7-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/2864-9-0x0000000005730000-0x0000000005780000-memory.dmp

      Filesize

      320KB

    • memory/2864-10-0x0000000005820000-0x00000000058BC000-memory.dmp

      Filesize

      624KB

    • memory/2864-11-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/2864-12-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/2864-13-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/2864-14-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/2864-15-0x00000000748CE000-0x00000000748CF000-memory.dmp

      Filesize

      4KB

    • memory/2864-16-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/2864-17-0x0000000006E60000-0x0000000007022000-memory.dmp

      Filesize

      1.8MB

    • memory/2864-18-0x0000000006CF0000-0x0000000006D40000-memory.dmp

      Filesize

      320KB

    • memory/2864-19-0x0000000007560000-0x0000000007A8C000-memory.dmp

      Filesize

      5.2MB

    • memory/2864-20-0x00000000070D0000-0x0000000007162000-memory.dmp

      Filesize

      584KB

    • memory/2864-21-0x0000000007030000-0x000000000703A000-memory.dmp

      Filesize

      40KB

    • memory/2864-22-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/2864-23-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/2864-24-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/2864-25-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/2864-26-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB