Analysis

  • max time kernel
    149s
  • max time network
    131s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/07/2026, 22:03

General

  • Target
    640d4390b574d98cd36bd206a65fceec9c322b4008a915519f55a8d39265c78c.exe
  • Size 478KB
  • Sample260703-1yp9hsgy21
  • SHA256 640d4390b574d98cd36bd206a65fceec9c322b4008a915519f55a8d39265c78c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • vipkeylogger

C2
  • https://api.telegram.org/bot7852563330:AAFXFP-iYUbBznbIZbszekH4YOYGTd6rj2c/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 web browsers 3 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\640d4390b574d98cd36bd206a65fceec9c322b4008a915519f55a8d39265c78c.exe
    "C:\Users\Admin\AppData\Local\Temp\640d4390b574d98cd36bd206a65fceec9c322b4008a915519f55a8d39265c78c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1052
    • C:\Users\Admin\AppData\Local\Temp\640d4390b574d98cd36bd206a65fceec9c322b4008a915519f55a8d39265c78c.exe
      "C:\Users\Admin\AppData\Local\Temp\640d4390b574d98cd36bd206a65fceec9c322b4008a915519f55a8d39265c78c.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5220

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsdC04F.tmp\System.dll
        • Size 12KB
        • SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1052-21-0x0000000005210000-0x00000000065A5000-memory.dmp

        memory/1052-18-0x0000000005210000-0x00000000065A5000-memory.dmp

        memory/1052-19-0x0000000073F45000-0x0000000073F46000-memory.dmp

        memory/5220-33-0x0000000000460000-0x00000000004A0000-memory.dmp

        memory/5220-22-0x000000007733F000-0x0000000077340000-memory.dmp

        memory/5220-23-0x00000000773C5000-0x00000000773C6000-memory.dmp

        memory/5220-32-0x0000000000460000-0x0000000001746000-memory.dmp

        memory/5220-20-0x0000000001750000-0x0000000002AE5000-memory.dmp

        memory/5220-34-0x0000000036120000-0x00000000366DA000-memory.dmp

        memory/5220-35-0x00000000366E0000-0x000000003677C000-memory.dmp

        memory/5220-36-0x0000000001750000-0x0000000002AE5000-memory.dmp

        memory/5220-37-0x0000000036CC0000-0x00000000371EC000-memory.dmp

        memory/5220-39-0x00000000773C5000-0x00000000773C6000-memory.dmp

        memory/5220-42-0x0000000037250000-0x00000000372E2000-memory.dmp

        memory/5220-43-0x0000000037340000-0x000000003734A000-memory.dmp