Analysis
- max time kernel
149s - max time network
94s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
09/05/2026, 06:49
General
- Target d9f60c778ccdc62309363a0ff5cc600f90584db64b805767c306268be37dc475.exe
- Size 1.3MB
- Sample260509-hld2lsb15x
- SHA256 d9f60c778ccdc62309363a0ff5cc600f90584db64b805767c306268be37dc475
Malware Config
Signatures
- Family: FlyAgent
FlyAgent is a backdoor written in C++.
- Detects FlyAgent Backdoor 5 IoCs
- Deletes itself 1 IoCs
- Executes dropped EXE 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 10 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 8 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of SetWindowsHookEx 10 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\d9f60c778ccdc62309363a0ff5cc600f90584db64b805767c306268be37dc475.exe"C:\Users\Admin\AppData\Local\Temp\d9f60c778ccdc62309363a0ff5cc600f90584db64b805767c306268be37dc475.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
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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
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"3⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"4⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"6⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"7⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"6⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"7⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"4⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Config.ini
VBS3.vbs
VBS3.vbs
VBS3.vbs
svchcst.exe
svchcst.exe
svchcst.exe
memory/388-53-0x00000000049D0000-0x0000000004A38000-memory.dmp
memory/388-54-0x0000000004A40000-0x0000000004A5D000-memory.dmp
memory/388-51-0x0000000000DF0000-0x0000000000E6C000-memory.dmp
memory/388-52-0x0000000002FC0000-0x0000000002FCE000-memory.dmp
memory/388-55-0x0000000004A60000-0x0000000004A6B000-memory.dmp
memory/1032-16-0x0000000001290000-0x000000000130C000-memory.dmp
memory/1032-10-0x0000000001290000-0x000000000130C000-memory.dmp
memory/2528-74-0x00000000009E0000-0x0000000000A5C000-memory.dmp
memory/2552-33-0x0000000000400000-0x0000000000551000-memory.dmp
memory/2552-8-0x0000000000400000-0x0000000000551000-memory.dmp
memory/2552-9-0x0000000000AF0000-0x0000000000B6C000-memory.dmp
memory/2668-70-0x0000000000B30000-0x0000000000BAC000-memory.dmp
memory/3068-76-0x0000000005CF0000-0x0000000005D78000-memory.dmp
memory/3068-75-0x00000000017E0000-0x000000000185C000-memory.dmp
memory/3068-77-0x0000000005350000-0x000000000536D000-memory.dmp
memory/3704-80-0x0000000005660000-0x000000000567D000-memory.dmp
memory/3704-79-0x00000000055D0000-0x0000000005658000-memory.dmp
memory/3704-78-0x0000000001050000-0x00000000010CC000-memory.dmp
memory/4148-48-0x0000000000AC0000-0x0000000000B3C000-memory.dmp
memory/5080-56-0x0000000001410000-0x000000000148C000-memory.dmp
memory/5080-57-0x0000000002DC0000-0x0000000002DCE000-memory.dmp
memory/5080-58-0x0000000005830000-0x0000000005898000-memory.dmp
memory/5080-59-0x00000000058A0000-0x00000000058BD000-memory.dmp
memory/5080-60-0x00000000058C0000-0x00000000058CB000-memory.dmp
memory/5284-81-0x0000000000A00000-0x0000000000A7C000-memory.dmp