Analysis
- max time kernel
150s - max time network
132s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
09/10/2026, 18:42
General
- Target jaffacakes118_Trojan-Dropper.Win32.Flystud.ko.exe
- Size 2.3MB
- Sample261009-xclsesdf79
- SHA256 5e75005048f714adca54ecf9e95f9b9c7a4831c9812ec1f1bf3a59180350c73c
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 4 IoCs
- 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 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies Internet Explorer settings 1 TTPs 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 44 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Flystud.ko.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Flystud.ko.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\e599d5fC:\Users\Admin\AppData\Local\Temp\e599d5f 3568C4825B4608553466824AE73FE11934A52298929844FD6BE151138B4FA18D2⤵
- Executes dropped EXE
- Loads dropped DLL
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
JHFDSNFJN
e599d5f
HtmlView.fne
eAPI.fne
eGrid.fne
krnln.fnr
memory/4812-28-0x0000000000400000-0x0000000000524000-memory.dmp
memory/4812-9-0x00000000100C3000-0x00000000100C4000-memory.dmp
memory/4812-0-0x0000000000400000-0x0000000000524000-memory.dmp
memory/4812-7-0x0000000010000000-0x000000001011D000-memory.dmp
memory/4812-29-0x0000000010000000-0x000000001011D000-memory.dmp
memory/4920-27-0x0000000010000000-0x000000001011D000-memory.dmp
memory/4920-20-0x0000000010000000-0x000000001011D000-memory.dmp
memory/4920-25-0x0000000002400000-0x0000000002438000-memory.dmp
memory/4920-30-0x0000000010000000-0x000000001011D000-memory.dmp
memory/4920-19-0x0000000010000000-0x000000001011D000-memory.dmp
memory/4920-49-0x0000000000400000-0x0000000000524000-memory.dmp
memory/4920-50-0x0000000010000000-0x000000001011D000-memory.dmp
memory/4920-51-0x0000000002400000-0x0000000002438000-memory.dmp