Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/07/2026, 01:40

General

  • Target
    1ae3530acc95583b7628c8e455ff1aef752ddffba7eb11a2c56b000510c46ef6.exe
  • Size 560KB
  • Sample260727-b3kr6atzdx
  • SHA256 1ae3530acc95583b7628c8e455ff1aef752ddffba7eb11a2c56b000510c46ef6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • vipkeylogger

C2
  • https://api.telegram.org/bot7383703871:AAE8li35TJ3TFths46ZztmCMXMbqOmO2lP0/sendMessage?chat_id=7618581100

Signatures

  • Family: Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Family: VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • 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 NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 WriteProcessMemory 2 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1ae3530acc95583b7628c8e455ff1aef752ddffba7eb11a2c56b000510c46ef6.exe
    "C:\Users\Admin\AppData\Local\Temp\1ae3530acc95583b7628c8e455ff1aef752ddffba7eb11a2c56b000510c46ef6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:5360
    • C:\Users\Admin\AppData\Local\Temp\1ae3530acc95583b7628c8e455ff1aef752ddffba7eb11a2c56b000510c46ef6.exe
      "C:\Users\Admin\AppData\Local\Temp\1ae3530acc95583b7628c8e455ff1aef752ddffba7eb11a2c56b000510c46ef6.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:848

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsr39D5.tmp\System.dll
        • Size 12KB
        • SHA256 014f1dfeb842cf7265a3644bc6903c592abe9049bfc7396829172d3d72c4d042
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/848-43-0x00000000723E2000-0x00000000723E3000-memory.dmp

        memory/848-45-0x0000000035680000-0x0000000035C3A000-memory.dmp

        memory/848-26-0x0000000001740000-0x0000000002167000-memory.dmp

        memory/848-27-0x000000007795F000-0x0000000077960000-memory.dmp

        memory/848-28-0x00000000779E5000-0x00000000779E6000-memory.dmp

        memory/848-35-0x0000000001740000-0x0000000002167000-memory.dmp

        memory/848-36-0x0000000000450000-0x0000000001736000-memory.dmp

        memory/848-37-0x00000000779E5000-0x00000000779E6000-memory.dmp

        memory/848-42-0x0000000000450000-0x0000000001736000-memory.dmp

        memory/848-56-0x0000000032E60000-0x0000000032E6A000-memory.dmp

        memory/848-55-0x0000000032D70000-0x0000000032E02000-memory.dmp

        memory/848-46-0x00000000354A0000-0x000000003553C000-memory.dmp

        memory/848-44-0x0000000000450000-0x000000000049A000-memory.dmp

        memory/848-47-0x00000000723D0000-0x0000000072B8C000-memory.dmp

        memory/848-48-0x0000000036070000-0x0000000036232000-memory.dmp

        memory/848-49-0x0000000036260000-0x00000000362B0000-memory.dmp

        memory/848-50-0x0000000036330000-0x000000003685C000-memory.dmp

        memory/848-52-0x00000000723E2000-0x00000000723E3000-memory.dmp

        memory/848-53-0x00000000723D0000-0x0000000072B8C000-memory.dmp

        memory/5360-25-0x00000000745E5000-0x00000000745E6000-memory.dmp

        memory/5360-24-0x0000000004FB0000-0x00000000059D7000-memory.dmp