Analysis

  • max time kernel
    105s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/03/2025, 13:20

General

  • Target

    (STC) DRAFT BL.exe

  • Size

    1023KB

  • MD5

    1f2316cbbb6f340ea45753ea5c889f11

  • SHA1

    3b49e0d165f9be0ac0443fa75ce4dcd25901dbcf

  • SHA256

    81f89461fc1feee34ad39a56fb386ed8e65eabe13416a20baa5b7adc6593e138

  • SHA512

    2c20d1fa92ac69af1f9757681dd06ae06379ba329df79bd4c14b6b04b7797a697884f0693388259481c0c3db0bf4597c845133c18902296a53804b7b59ddcc4a

  • SSDEEP

    24576:eu6J33O0c+JY5UZ+XC0kGso6FarIr1i3t07aEWY:wu0c++OCvkGs9FarZ3t0gY

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7332888932:AAEd0xO46FUg-eZu8OorYiVnZ_y4D9P2pCE/sendMessage?chat_id=7128988401

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.

  • Program crash 1 IoCs
  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\(STC) DRAFT BL.exe
    "C:\Users\Admin\AppData\Local\Temp\(STC) DRAFT BL.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4592
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\(STC) DRAFT BL.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:5256
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 692
      2⤵
      • Program crash
      PID:1848
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4592 -ip 4592
    1⤵
      PID:5776

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4592-6-0x0000000000E60000-0x0000000001260000-memory.dmp

      Filesize

      4.0MB

    • memory/5256-7-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/5256-8-0x0000000073D1E000-0x0000000073D1F000-memory.dmp

      Filesize

      4KB

    • memory/5256-9-0x0000000005480000-0x0000000005A24000-memory.dmp

      Filesize

      5.6MB

    • memory/5256-10-0x0000000004FB0000-0x000000000504C000-memory.dmp

      Filesize

      624KB

    • memory/5256-11-0x0000000073D10000-0x00000000744C0000-memory.dmp

      Filesize

      7.7MB

    • memory/5256-12-0x0000000006300000-0x00000000064C2000-memory.dmp

      Filesize

      1.8MB

    • memory/5256-13-0x00000000061A0000-0x00000000061F0000-memory.dmp

      Filesize

      320KB

    • memory/5256-14-0x0000000006B00000-0x000000000702C000-memory.dmp

      Filesize

      5.2MB

    • memory/5256-15-0x0000000073D1E000-0x0000000073D1F000-memory.dmp

      Filesize

      4KB

    • memory/5256-16-0x0000000073D10000-0x00000000744C0000-memory.dmp

      Filesize

      7.7MB

    • memory/5256-18-0x0000000006620000-0x000000000662A000-memory.dmp

      Filesize

      40KB

    • memory/5256-17-0x0000000006670000-0x0000000006702000-memory.dmp

      Filesize

      584KB