Analysis
- max time kernel
148s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
06/10/2026, 14:36
General
- Target jaffacakes118_Trojan-Downloader.Win32.Vivia.aa.exe
- Size 84KB
- Sample261006-ryk55afc53
- SHA256 28b2eaf329f5378ee3ad26bbcde0bf09a5e044123f7bc22cb6cf05c21f4f05ba
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 3 IoCs
- Drops file in System32 directory 1 IoCs
- UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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.
- Modifies registry class 9 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Downloader.Win32.Vivia.aa.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Downloader.Win32.Vivia.aa.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\sncphle\monyaa.exeC:\Windows\system32\sncphle\monyaa.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\sncphle\monyaa.exeC:\Windows\SysWOW64\sncphle\monyaa.exe1⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
monyaa.exe
memory/1160-6-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1880-7-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4312-0-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4312-4-0x0000000000400000-0x0000000000441000-memory.dmp