Analysis
- max time kernel
87s - max time network
136s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
15/10/2026, 08:51
Behavioral task
behavioral1
Sample
64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe
Resource
win10v2004-20260911-en
12 signatures
150 seconds
General
- Target 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe
- Size 1.1MB
- Sample261015-ksja1sys4k
- SHA256 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd
- MD5 d6c3c69ff1c8fcc9a91798f323ca35b9
- SHA1 f59502e8a94430e04fa4473e7c3fb7cf98d2b8df
- SHA512 e430c189610610c68b72a7feaf1d99c59fc5e683fd0ddb3695266a6a26930aae35b44c9b73aef0d6bf4726b65fa8d9b695bd4610c68979608c3f9a1257262ad7
- SSDEEP 24576:aH0dl8myX9Bg42QoXFkrzkmplSgRDYo0lG4Z8r7Qfbkiu5Qy:acallSllG4ZM7QzMv
- TLSH T153458D13F292C0F1E61C227124FB6739BE749B450A71CAC7E794DD791C32691ABA720E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects FlyAgent Backdoor 3 IoCs
resource yara_rule behavioral1/memory/3312-0-0x0000000000400000-0x000000000055F000-memory.dmp flyagent behavioral1/memory/3312-12-0x0000000000400000-0x000000000055F000-memory.dmp flyagent behavioral1/memory/3312-13-0x0000000000400000-0x000000000055F000-memory.dmp flyagent - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-939655444-3071939294-1401108526-1000\Control Panel\International\Geo\Nation 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe - Executes a VBScript file via the Windows Script Host. 1 TTPs 2 IoCs
pid Process 2540 WScript.exe 1232 WScript.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname WScript.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname WScript.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain WScript.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain WScript.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WScript.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WScript.exe - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-939655444-3071939294-1401108526-1000_Classes\Local Settings 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3312 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe 3312 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe 3312 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe 3312 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 3312 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3312 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe 3312 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3312 wrote to memory of 2540 3312 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe 90 PID 3312 wrote to memory of 1232 3312 64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.exe"C:\Users\Admin\AppData\Local\Temp\64b6d7fab059575dcaa81b9dd33c50d0d46a840a1e7560b0c12d9be189d6c2dd.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:3312 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"2⤵
- Executes a VBScript file via the Windows Script Host.
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
PID:1232
-
-
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"2⤵
- Executes a VBScript file via the Windows Script Host.
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
PID:2540
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs
- Size 753B
- SHA256 4ae452d3f994211a4a50c9907434bc4c761500e60420b68eb0eb01be1194ca64
- MD5 63e4e47c3a07f0de1edea6aad102e3b1
- SHA1 866318da3982b2e187e53c5d274a633e98c18344
- SHA512 560b4a9677a471f6dc031574cc1fa048f309cd21298365d02f53af1f76a0f873ce7af015c3030d205b05c9d80f07f0220a14dcde0e34fbde76e120573e19bb1e
- TLSH T1C201CB10ED4C826C613543B22432E84FF3EE1543A3039CE8B889D0A62F707689DB1A32
- MD5 SHA1 SHA512 TLSH