Resubmissions

24/02/2025, 12:08

250224-pa55aa1pw5 10

24/02/2025, 09:40

250224-lnmnbavpt3 10

20/02/2025, 03:42

250220-d9d93awkdk 10

Analysis

  • max time kernel
    120s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    24/02/2025, 12:08

General

  • Target

    libvlc.dll

  • Size

    5.4MB

  • MD5

    e339e11223bb5e4ed51e7112dfa617da

  • SHA1

    510687d976c6253cb8b3569d71aaf85a2c69ee70

  • SHA256

    eeb4c6dd889c40d8b95ee00f2eff67a5d3e0d4a15034ab97a36662599b2e4f3e

  • SHA512

    aad3586e35bda596ccfad245856f5a59467b0a3ecc14ef39bc2dbda4e830038eaf80cacb62cdcf7dccdbc1982f72974ef21553a56f35a940657197655a7c34f2

  • SSDEEP

    49152:zUFv9Z4I+GBdNKgLLkFTaTMXWDIIWVAGe/IBlHelcPJOOr5V3P0jYThYFj52JPwW:omG8W2ZAGe/IBlGcPzi5W6P4a+GLQ1

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7518188422:AAHmsiSJGbuq2bkotqlSAYxEVWayoAQB6Rw/sendMessage?chat_id=5210110905

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\libvlc.dll,#1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2240
    • 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:2384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2240-0-0x00000000003A0000-0x00000000003B0000-memory.dmp

    Filesize

    64KB

  • memory/2384-3-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2384-8-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2384-10-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2384-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2384-6-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2384-5-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2384-1-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2384-12-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2384-13-0x000000007479E000-0x000000007479F000-memory.dmp

    Filesize

    4KB

  • memory/2384-14-0x0000000074790000-0x0000000074E7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2384-15-0x000000007479E000-0x000000007479F000-memory.dmp

    Filesize

    4KB

  • memory/2384-16-0x0000000074790000-0x0000000074E7E000-memory.dmp

    Filesize

    6.9MB