Analysis
- max time kernel
149s - max time network
92s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
22/04/2026, 22:37
General
- Target fedbded3c0655f27cb32c5272bfab01eec0d439a25ab52ba0e0060fe61f1351b.exe
- Size 1.1MB
- Sample260422-2j57vsds8v
- SHA256 fedbded3c0655f27cb32c5272bfab01eec0d439a25ab52ba0e0060fe61f1351b
Malware Config
Signatures
- Family: FlyAgent
FlyAgent is a backdoor written in C++.
- Detects FlyAgent Backdoor 7 IoCs
- Deletes itself 1 IoCs
- Executes dropped EXE 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 3 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of SetWindowsHookEx 6 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\fedbded3c0655f27cb32c5272bfab01eec0d439a25ab52ba0e0060fe61f1351b.exe"C:\Users\Admin\AppData\Local\Temp\fedbded3c0655f27cb32c5272bfab01eec0d439a25ab52ba0e0060fe61f1351b.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
-
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⤵
- 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"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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
VBS3.vbs
svchcst.exe
memory/900-39-0x0000000000990000-0x0000000000F92000-memory.dmp
memory/900-40-0x0000000000400000-0x000000000055F000-memory.dmp
memory/2392-12-0x0000000000C00000-0x0000000001202000-memory.dmp
memory/2392-29-0x0000000000C00000-0x0000000001202000-memory.dmp
memory/2392-30-0x0000000000400000-0x000000000055F000-memory.dmp
memory/2392-0-0x0000000000400000-0x000000000055F000-memory.dmp
memory/2392-11-0x0000000000400000-0x000000000055F000-memory.dmp
memory/3248-34-0x0000000000400000-0x000000000055F000-memory.dmp
memory/3248-38-0x0000000000400000-0x000000000055F000-memory.dmp
memory/3248-37-0x00000000009A0000-0x0000000000FA2000-memory.dmp
memory/3724-36-0x00000000030C0000-0x00000000036C2000-memory.dmp
memory/4160-35-0x0000000003700000-0x0000000003D02000-memory.dmp