Analysis
- max time kernel
136s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
26/04/2026, 03:20
Behavioral task
behavioral1
Sample
27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe
Resource
win10v2004-20260130-en
10 signatures
150 seconds
General
- Target 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe
- Size 1.1MB
- Sample260426-dvtffacx5v
- SHA256 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720
- MD5 749df0f4650ebadf671905dbf09a35e6
- SHA1 05e2074af3a68235149e6fa7a1907f3ad42abc1e
- SHA512 6c6b43d410a41820d3d169cb1f5f9c8b58764fab42ba7a6f1fd2bbb9db3910aa4613a2598070cd9ad6c7ac68c413cab64c443257444e33df85bcbb0858948d6d
- SSDEEP 24576:aH0dl8myX9Bg42QoXFkrzkmplSgRDYo0lG4Z8r7Qfbkiu5Qt:acallSllG4ZM7QzMU
- TLSH T1F8458D13F292C0F1E61C227124FB6739BE749B450A71CAC7E794DD791C32691ABA720E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects FlyAgent Backdoor 3 IoCs
resource yara_rule behavioral1/memory/2540-0-0x0000000000400000-0x000000000055F000-memory.dmp flyagent behavioral1/memory/2540-11-0x0000000000400000-0x000000000055F000-memory.dmp flyagent behavioral1/memory/2540-13-0x0000000000400000-0x000000000055F000-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-1-5-21-745935970-1373868228-562466063-1000\Control Panel\International\Geo\Nation 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.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-1-5-21-745935970-1373868228-562466063-1000_Classes\Local Settings 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2540 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe 2540 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe 2540 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe 2540 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 2540 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2540 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe 2540 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2540 wrote to memory of 3988 2540 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe 85 PID 2540 wrote to memory of 4332 2540 27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.exe"C:\Users\Admin\AppData\Local\Temp\27f00cd0add3c1cc9beee47c86c3f835e58bce92fd89123927c83760861f5720.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:2540 -
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
PID:3988
-
-
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
PID:4332
-
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 f77273288dad4aeb4ad12f75fb0d3c68503566d34e3b262cf548c9ad62d0186e
- MD5 134473d29ea538c0c6493c4b93b7bf09
- SHA1 d93d6a8458888ef1539d0f6284bf233914870892
- SHA512 153c09888657f6d419f5e0a545f5f80bcd987959cc92899b9f8953968826f44de931b90eb0056f4f7df413c8277d1ca911da3ec3ee9f7ded31687e6148f8604c
- TLSH T15E01CB10DD9CC258603593B22533E44EF7AA2553A303ACE9B985D1B12FB076C8CB1A37
- MD5 SHA1 SHA512 TLSH