Analysis
- max time kernel
149s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
27/09/2026, 04:39
General
- Target jaffacakes118_39a2d03ee7aad14ed0d70a7a8da81f4c606fcb14128073b4ce52b44d5d0aabe1.exe
- Size 2.0MB
- Sample260927-e9588a1tbw
- SHA256 39a2d03ee7aad14ed0d70a7a8da81f4c606fcb14128073b4ce52b44d5d0aabe1
Malware Config
Signatures
- Family: ProRat
ProRat is a Windows RAT written in C++.
- Detects ProRat payload 17 IoCs
- Modifies WinLogon for persistence 2 TTPs 2 IoCs
- Adds policy Run key to start application 2 TTPs 4 IoCs
- Boot or Logon Autostart Execution: Active Setup 2 TTPs 5 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
- ASPack v2.12-2.42 1 IoCs
Detects executables packed with ASPack v2.12-2.42
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 5 IoCs
- Modifies WinLogon 2 TTPs 2 IoCs
- Drops file in System32 directory 7 IoCs
- Drops file in Windows directory 7 IoCs
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- 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 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Runs net.exe
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_39a2d03ee7aad14ed0d70a7a8da81f4c606fcb14128073b4ce52b44d5d0aabe1.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_39a2d03ee7aad14ed0d70a7a8da81f4c606fcb14128073b4ce52b44d5d0aabe1.exe"1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Boot or Logon Autostart Execution: Active Setup
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\fservice.exeC:\Windows\system32\fservice.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\services.exeC:\Windows\services.exe -XP3⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Boot or Logon Autostart Execution: Active Setup
- Executes dropped EXE
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\NET.exeNET STOP srservice4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 STOP srservice5⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\NET.exeNET STOP navapsvc4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 STOP navapsvc5⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\jaffacakes118_39a2d03ee7aad14ed0d70a7a8da81f4c606fcb14128073b4ce52b44d5d0aabe1.exe.bat2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
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Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
4Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
2Privilege Escalation
Boot or Logon Autostart Execution
4Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
2Replay Monitor
Loading Replay Monitor...
Downloads
jaffacakes118_39a2d03ee7aad14ed0d70a7a8da81f4c606fcb14128073b4ce52b44d5d0aabe1.exe.bat
fservice.exe
reginv.dll
winkey.dll
memory/1044-8-0x0000000000AC0000-0x0000000000AC1000-memory.dmp
memory/1044-34-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-38-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-44-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-64-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-17-0x0000000002760000-0x0000000002761000-memory.dmp
memory/4028-37-0x0000000002760000-0x0000000002761000-memory.dmp
memory/4028-39-0x0000000010000000-0x000000001000B000-memory.dmp
memory/4028-62-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-40-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-42-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-21-0x0000000010000000-0x000000001000B000-memory.dmp
memory/4028-46-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-48-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-50-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-52-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-54-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-56-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-58-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4028-60-0x0000000000400000-0x00000000005F8000-memory.dmp
memory/4160-0-0x0000000000C00000-0x0000000000C01000-memory.dmp
memory/4160-35-0x0000000000400000-0x00000000005F8000-memory.dmp