Analysis

  • max time kernel
    117s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    27/02/2025, 13:23

General

  • Target

    BugSplat64.dll

  • Size

    12.4MB

  • MD5

    5dc0ed87146dacc6f84005f6667a977a

  • SHA1

    397fd547749314eca0780275e8c695067256d82d

  • SHA256

    5b0c0b5fab4030da17e80d45dddaacda910e443d3a270882196968b9309bfaaf

  • SHA512

    f3df02654ebee17d9b7c1346d6a4a69d8a5fb025731e27ac7cab4929e4ec87818d6ed446ad95a959000013730d65523ff24036af23847ab0646883883b7df786

  • SSDEEP

    98304:ppnzRymHDY4HFSnarEN1w7Kx7GdvrqexhNZZ0MG1qB1H7F2hjGXCcdWSxwxQ2jh:pNFD84H+NqelOBBZZsItR2hjGXPdcxF

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 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 9 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:2932
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.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:2492

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2492-5-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2492-2-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2492-9-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2492-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2492-7-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2492-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2492-4-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2492-3-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2492-12-0x00000000748CE000-0x00000000748CF000-memory.dmp

    Filesize

    4KB

  • memory/2492-13-0x00000000748C0000-0x0000000074FAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2492-14-0x00000000748CE000-0x00000000748CF000-memory.dmp

    Filesize

    4KB

  • memory/2492-15-0x00000000748C0000-0x0000000074FAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2932-0-0x0000000000330000-0x0000000000340000-memory.dmp

    Filesize

    64KB