Analysis

  • max time kernel
    107s
  • max time network
    138s
  • 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 08:40

General

  • Target

    TEKLFSTE-TUSATRKHAVACILIKUZAYSANAY_xlsx.exe

  • Size

    1.0MB

  • MD5

    711d0893a047d1aaabd5cb4c1fd8f4ad

  • SHA1

    e555d7e2ec5f631e9317b62d004ff4069a4b20e2

  • SHA256

    8b0966ac0b9d10efd2de59fd1f3949c0c5fd24a293193396022d949cecb8ef7d

  • SHA512

    32017ddff18679927a74a8697a122ab8388258335c9da4fd02ef5c75deec5587b3c4a07bf8a5a72a6558501f727cf698c9bf296f1d2d1cd5eccfc94a3eaa4c26

  • SSDEEP

    24576:IqDEvCTbMWu7rQYlBQcBiT6rprG8aUCqgHGLXx:ITvC/MTQYxsWR7aU

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 2 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 behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TEKLFSTE-TUSATRKHAVACILIKUZAYSANAY_xlsx.exe
    "C:\Users\Admin\AppData\Local\Temp\TEKLFSTE-TUSATRKHAVACILIKUZAYSANAY_xlsx.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4344
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\TEKLFSTE-TUSATRKHAVACILIKUZAYSANAY_xlsx.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:4552

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4344-6-0x0000000000A90000-0x0000000000E90000-memory.dmp

    Filesize

    4.0MB

  • memory/4552-7-0x0000000000500000-0x0000000000548000-memory.dmp

    Filesize

    288KB

  • memory/4552-8-0x000000007416E000-0x000000007416F000-memory.dmp

    Filesize

    4KB

  • memory/4552-9-0x0000000005000000-0x00000000055A4000-memory.dmp

    Filesize

    5.6MB

  • memory/4552-10-0x0000000004B30000-0x0000000004BCC000-memory.dmp

    Filesize

    624KB

  • memory/4552-11-0x0000000074160000-0x0000000074910000-memory.dmp

    Filesize

    7.7MB

  • memory/4552-12-0x000000007416E000-0x000000007416F000-memory.dmp

    Filesize

    4KB

  • memory/4552-13-0x0000000074160000-0x0000000074910000-memory.dmp

    Filesize

    7.7MB

  • memory/4552-14-0x0000000005FC0000-0x0000000006182000-memory.dmp

    Filesize

    1.8MB

  • memory/4552-15-0x0000000005E60000-0x0000000005EB0000-memory.dmp

    Filesize

    320KB

  • memory/4552-16-0x0000000006190000-0x0000000006222000-memory.dmp

    Filesize

    584KB

  • memory/4552-17-0x0000000005F70000-0x0000000005F7A000-memory.dmp

    Filesize

    40KB