Analysis
- max time kernel
139s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
16/04/2026, 21:35
General
- Target c4b40464da5ff62b2b224e0f5932faedbd6e79e9dad63bc899cfcf4b9200b73c.exe
- Size 1.4MB
- Sample260416-1fkw3set61
- SHA256 c4b40464da5ff62b2b224e0f5932faedbd6e79e9dad63bc899cfcf4b9200b73c
Score
10/10
Malware Config
Signatures
- Family: FlyAgent
FlyAgent is a backdoor written in C++.
- Detects FlyAgent Backdoor 2 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\c4b40464da5ff62b2b224e0f5932faedbd6e79e9dad63bc899cfcf4b9200b73c.exe"C:\Users\Admin\AppData\Local\Temp\c4b40464da5ff62b2b224e0f5932faedbd6e79e9dad63bc899cfcf4b9200b73c.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
-
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
-
-
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
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
VBS3.vbs
memory/2916-0-0x0000000000400000-0x000000000055F000-memory.dmp
memory/2916-11-0x0000000000400000-0x000000000055F000-memory.dmp
memory/2916-12-0x00000000022D0000-0x000000000232F000-memory.dmp
memory/4508-13-0x0000000000EE0000-0x0000000000F3F000-memory.dmp
memory/4520-14-0x00000000021F0000-0x000000000224F000-memory.dmp