Analysis
- max time kernel
148s - max time network
133s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
15/09/2026, 16:51
General
- Target jaffacakes118_e712448c0f3f13a56caff93ef14094f9_JaffaCakes118.exe
- Size 165KB
- Sample260915-vc3d3agd97
- SHA256 a15002997a4a2702d764701b82bb8071271e26d1fa1c7679cab529564c6cbf00
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_e712448c0f3f13a56caff93ef14094f9_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_e712448c0f3f13a56caff93ef14094f9_JaffaCakes118.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ins6358\ins6358.exe"C:\Users\Admin\AppData\Local\Temp\ins6358\ins6358.exe" ins.exe /e10760664 /u4dc9054e-38b0-4614-bdd5-20605bc06f262⤵
- 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
ins6358.exe
memory/3404-10-0x00000000018A0000-0x00000000018B0000-memory.dmp
memory/3404-11-0x0000000073A72000-0x0000000073A74000-memory.dmp
memory/3404-14-0x0000000073A70000-0x0000000074091000-memory.dmp
memory/3404-15-0x0000000073A70000-0x0000000074091000-memory.dmp
memory/3404-16-0x0000000073A70000-0x0000000074091000-memory.dmp
memory/3404-18-0x00000000018A0000-0x00000000018B0000-memory.dmp
memory/3404-19-0x0000000073A70000-0x0000000074091000-memory.dmp
memory/4472-0-0x0000000000400000-0x000000000047C000-memory.dmp
memory/4472-17-0x0000000000400000-0x000000000047C000-memory.dmp
memory/4472-20-0x0000000000400000-0x000000000047C000-memory.dmp