Overview

overview

10

Static

static

10

d55df7fb63...6d.exe

windows10-2004-x64

10

d55df7fb63...6d.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    21/04/2026, 08:51

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General

  • Target
    d55df7fb63670337b47c25c6cec7a00d649e007f191b7241b996d30970de936d.exe
  • Size 1.3MB
  • Sample260421-kr7bfsev5x
  • SHA256 d55df7fb63670337b47c25c6cec7a00d649e007f191b7241b996d30970de936d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
backdoordiscoveryflyagent

Malware Config

Signatures

  • Family: FlyAgent

    FlyAgent is a backdoor written in C++.

    backdoorflyagent
  • Detects FlyAgent Backdoor 1 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.

    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\d55df7fb63670337b47c25c6cec7a00d649e007f191b7241b996d30970de936d.exe
    "C:\Users\Admin\AppData\Local\Temp\d55df7fb63670337b47c25c6cec7a00d649e007f191b7241b996d30970de936d.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:4460
    • 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:4492
    • 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:4496

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 26f218c5b4ac2c31f74af4b732cec4540c1b8ce6ef1835ead386dcfc9533c519
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/4460-10-0x0000000000400000-0x0000000000551000-memory.dmp
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        memory/4460-11-0x0000000000B20000-0x0000000000C03000-memory.dmp
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        memory/4492-12-0x0000000000F70000-0x0000000001053000-memory.dmp
        Download

        memory/4496-13-0x0000000000F70000-0x0000000001053000-memory.dmp
        Download