Analysis
- max time kernel
149s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
09/10/2026, 19:55
General
- Target jaffacakes118_Trojan-Dropper.Win32.Small.ej.exe
- Size 8KB
- Sample261009-ym4xeseb44
- SHA256 780ed1c60b5f345b8b20f1da3a8d00dd03b1839fa06eb76a2a0d4a8210a39f5f
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Windows directory 1 IoCs
- Reads the TCP/IP host and domain name from the registry 1 TTPs 4 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.
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Small.ej.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Small.ej.exe"1⤵
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\winupdate.exeC:\Windows\winupdate.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
-
-
C:\Windows\winupdate.exeC:\Windows\winupdate.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
winupdate.exe
memory/2084-8-0x0000000000400000-0x0000000000408000-memory.dmp
memory/2684-0-0x0000000000400000-0x000000000040A000-memory.dmp
memory/2684-9-0x0000000000400000-0x000000000040A000-memory.dmp
memory/4376-4-0x0000000000400000-0x0000000000408000-memory.dmp
memory/4376-10-0x0000000000400000-0x0000000000408000-memory.dmp