Overview

overview

10

Static

static

10

93a421c39a...f9.exe

windows10-2004-x64

10

93a421c39a...f9.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    46s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/10/2026, 12:16

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General

  • Target
    93a421c39a3d9bc83e2cba249a2eaf249a53e1ad7083a74198b59b13cb5e8cf9.exe
  • Size 1.1MB
  • Sample261015-pflb3atvht
  • SHA256 93a421c39a3d9bc83e2cba249a2eaf249a53e1ad7083a74198b59b13cb5e8cf9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
backdoordiscoveryexecutionflyagent

Malware Config

Signatures

  • Family: FlyAgent

    FlyAgent is a backdoor written in C++.

    backdoorflyagent
  • Detects FlyAgent Backdoor 3 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 2 IoCs
    execution
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\93a421c39a3d9bc83e2cba249a2eaf249a53e1ad7083a74198b59b13cb5e8cf9.exe
    "C:\Users\Admin\AppData\Local\Temp\93a421c39a3d9bc83e2cba249a2eaf249a53e1ad7083a74198b59b13cb5e8cf9.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3276
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
      2⤵
      • Executes a VBScript file via the Windows Script Host.
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      PID:4524
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
      2⤵
      • Executes a VBScript file via the Windows Script Host.
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      PID:5692

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        VBS3.vbs
        • Path C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs
        • Size 753B
        • SHA256 449f0a21758bc16becc4ce5996180538f01156117a6af5529ad92b6f4be0cd09
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/3276-0-0x0000000000400000-0x000000000055F000-memory.dmp
        Download

        memory/3276-19-0x0000000000400000-0x000000000055F000-memory.dmp
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        memory/3276-28-0x0000000000400000-0x000000000055F000-memory.dmp
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