Analysis
- max time kernel
148s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
15/10/2026, 23:14
General
- Target jaffacakes118_Trojan.Win32.Agent.qwezsl.exe
- Size 1.6MB
- Sample261015-272vcaew7p
- SHA256 b7d2613750a4bde39bc92687763a228288343303ff156891e4bbb9f5d617129d
Malware Config
Signatures
- Executes dropped EXE 4 IoCs
- Loads dropped DLL 4 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in System32 directory 1 IoCs
- Drops file in Program Files directory 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies Control Panel 4 IoCs
- Modifies registry class 4 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Agent.qwezsl.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Agent.qwezsl.exe"1⤵
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Holland Screen Saver.scr"C:\Windows\system32\Holland Screen Saver.scr" /Splash2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\control.exe"C:\Windows\System32\control.exe" desk.cpl,,13⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" Shell32.dll,Control_RunDLL desk.cpl,,14⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Holland Screen Saver.scr"C:\Windows\system32\Holland Screen Saver.scr" /p 6554865⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Program Files (x86)\Holland Screen Saver\Holland Screen Saver.scr"C:\Program Files (x86)\Holland Screen Saver\Holland Screen Saver.scr" /ShowFromInstaller3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Holland Screen Saver\saver.exe"saver.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
mhproc.dll
saver.exe
Holland Screen Saver.scr
memory/1396-5-0x00000000023E0000-0x00000000023E1000-memory.dmp
memory/1396-8-0x00000000023E0000-0x00000000023E1000-memory.dmp
memory/1396-7-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/1396-20-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/1452-29-0x0000000002120000-0x000000000212F000-memory.dmp
memory/1452-30-0x0000000002120000-0x000000000212F000-memory.dmp
memory/2140-33-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2584-21-0x0000000000400000-0x0000000000451000-memory.dmp
memory/2584-6-0x0000000000400000-0x0000000000451000-memory.dmp
memory/4228-26-0x0000000002500000-0x000000000250F000-memory.dmp
memory/4228-31-0x0000000000400000-0x00000000004D1000-memory.dmp