Analysis

  • max time kernel
    136s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    26/04/2026, 03:20

General

  • Target
    27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe
  • Size 1.1MB
  • Sample260426-dvtffacx5v
  • SHA256 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: FlyAgent

    FlyAgent is a backdoor written in C++.

  • Detects FlyAgent Backdoor 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • 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\27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe
    "C:\Users\Admin\AppData\Local\Temp\27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2540
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3988
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4332

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        VBS3.vbs

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs
        • Size 753B
        • SHA256 f77273288dad4aeb4ad12f75fb0d3c68503566d34e3b262cf548c9ad62d0186e
        • MD5 SHA1 SHA512 TLSH

        memory/2540-0-0x0000000000400000-0x000000000055F000-memory.dmp

        memory/2540-11-0x0000000000400000-0x000000000055F000-memory.dmp

        memory/2540-12-0x0000000004120000-0x0000000004139000-memory.dmp

        memory/2540-13-0x0000000000400000-0x000000000055F000-memory.dmp

        memory/3988-14-0x00000000011D0000-0x00000000011E9000-memory.dmp

        memory/4332-15-0x0000000001660000-0x0000000001679000-memory.dmp