Analysis
- max time kernel
83s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
16/04/2026, 21:37
General
- Target b6d30fb4024f649955dea51ec2ab7274f48ffe32484f3575afe510b5c479c30b.exe
- Size 1.4MB
- Sample260416-1gz3dset91
- SHA256 b6d30fb4024f649955dea51ec2ab7274f48ffe32484f3575afe510b5c479c30b
Malware Config
Signatures
- Family: FlyAgent
FlyAgent is a backdoor written in C++.
- Detects FlyAgent Backdoor 12 IoCs
- Deletes itself 1 IoCs
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 6 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 4 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\b6d30fb4024f649955dea51ec2ab7274f48ffe32484f3575afe510b5c479c30b.exe"C:\Users\Admin\AppData\Local\Temp\b6d30fb4024f649955dea51ec2ab7274f48ffe32484f3575afe510b5c479c30b.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
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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
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C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"5⤵
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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
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C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe"5⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Config.ini
VBS3.vbs
VBS3.vbs
svchcst.exe
svchcst.exe
memory/1268-58-0x0000000000400000-0x000000000055F000-memory.dmp
memory/1268-51-0x0000000000400000-0x000000000055F000-memory.dmp
memory/1268-37-0x0000000000400000-0x000000000055F000-memory.dmp
memory/1320-13-0x0000000003050000-0x00000000030A1000-memory.dmp
memory/2096-34-0x0000000000400000-0x000000000055F000-memory.dmp
memory/2096-0-0x0000000000400000-0x000000000055F000-memory.dmp
memory/2096-14-0x0000000000400000-0x000000000055F000-memory.dmp
memory/2096-11-0x0000000000400000-0x000000000055F000-memory.dmp
memory/2220-66-0x0000000000400000-0x000000000055F000-memory.dmp
memory/2220-62-0x0000000000400000-0x000000000055F000-memory.dmp
memory/3948-12-0x0000000002A60000-0x0000000002AB1000-memory.dmp
memory/4648-65-0x0000000004CE0000-0x0000000004CFD000-memory.dmp
memory/4648-64-0x0000000004C70000-0x0000000004CD8000-memory.dmp
memory/4648-52-0x0000000000830000-0x0000000000881000-memory.dmp
memory/4892-70-0x0000000000400000-0x000000000055F000-memory.dmp
memory/4976-53-0x0000000002D50000-0x0000000002DA1000-memory.dmp
memory/4976-69-0x0000000005750000-0x000000000576D000-memory.dmp
memory/4976-68-0x00000000056E0000-0x0000000005748000-memory.dmp