Analysis
- max time kernel
148s - max time network
111s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
15/09/2026, 16:53
General
- Target jaffacakes118_e7260aadfa660fd399990d23ba7bf222_JaffaCakes118.exe
- Size 165KB
- Sample260915-vd8bps1cmf
- SHA256 c4cf29d4cea2225c7c596c0efc95f4177cae6e3c9786c75cb316900a3df0672f
Malware Config
Signatures
- Family: Firseria
Firseria a downloader/adware written in C++.
- Detects Firseria 2 IoCs
- Executes dropped EXE 1 IoCs
- Drops desktop.ini file(s) 2 IoCs
- Drops file in Windows directory 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_e7260aadfa660fd399990d23ba7bf222_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_e7260aadfa660fd399990d23ba7bf222_JaffaCakes118.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ins4791\ins4791.exe"C:\Users\Admin\AppData\Local\Temp\ins4791\ins4791.exe" ins.exe /e4788187 /u4f2b9a7a-4984-4696-9db8-240f5bc06f2f2⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
ins4791.exe
memory/3060-0-0x0000000000400000-0x000000000047C000-memory.dmp
memory/3060-17-0x0000000000400000-0x000000000047C000-memory.dmp
memory/3060-21-0x0000000000400000-0x000000000047C000-memory.dmp
memory/3436-10-0x0000000000F10000-0x0000000000F20000-memory.dmp
memory/3436-11-0x0000000073B82000-0x0000000073B84000-memory.dmp
memory/3436-14-0x0000000073B80000-0x00000000741A1000-memory.dmp
memory/3436-15-0x0000000073B80000-0x00000000741A1000-memory.dmp
memory/3436-16-0x0000000073B80000-0x00000000741A1000-memory.dmp
memory/3436-18-0x0000000000F10000-0x0000000000F20000-memory.dmp
memory/3436-19-0x0000000073B82000-0x0000000073B84000-memory.dmp
memory/3436-20-0x0000000073B80000-0x00000000741A1000-memory.dmp