Analysis
- user interaction
yes - max time kernel
113s - max time network
75s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
23/07/2026, 12:50
General
- Target Sylenth1 3.073+Skin+A Super Crazy Number Of Presets.7z
- Size 96.4MB
- Sample260723-p29a1sxtbs
- SHA256 fdd86ee4caafaedb7e6d7e1926505d8ca7761643b62efe9516ce493d423f541b
Malware Config
Signatures
- Drops file in Drivers directory 1 IoCs
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 8 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 Program Files directory 2 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.
- 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.
- Inno Setup is an open-source installation builder for Windows applications. 1 IoCs
Inno Setup installer
- Modifies registry class 1 IoCs
- Runs net.exe
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 3 IoCs
- Suspicious use of SetWindowsHookEx 13 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Program Files\7-Zip\7zFM.exe"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Sylenth1 3.073+Skin+A Super Crazy Number Of Presets.7z"1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
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C:\Users\Admin\Desktop\Sylenth1 3.073+Skin+A Super Crazy Number Of Presets\Setup Sylenth1 v3.073.exe"C:\Users\Admin\Desktop\Sylenth1 3.073+Skin+A Super Crazy Number Of Presets\Setup Sylenth1 v3.073.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-ABKSB.tmp\Setup Sylenth1 v3.073.tmp"C:\Users\Admin\AppData\Local\Temp\is-ABKSB.tmp\Setup Sylenth1 v3.073.tmp" /SL5="$20280,72061678,799744,C:\Users\Admin\Desktop\Sylenth1 3.073+Skin+A Super Crazy Number Of Presets\Setup Sylenth1 v3.073.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe" /C ""C:\Users\Admin\Documents\LennarDigital\Sylenth1\Bassincewtik.bat""3⤵
- Drops file in Drivers directory
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\net.exeNET SESSION4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\net1.exeC:\Windows\system32\net1 SESSION5⤵
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C:\Windows\system32\findstr.exefindstr /C:"127.0.0.1 www.lennardigital.com" "C:\Windows\System32\drivers\etc\hosts"4⤵
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C:\Windows\system32\findstr.exefindstr /C:"127.0.0.1 rhea.exsilia.net" "C:\Windows\System32\drivers\etc\hosts"4⤵
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C:\Users\Admin\Documents\LennarDigital\Sylenth1\keygen.exe"C:\Users\Admin\Documents\LennarDigital\Sylenth1\keygen.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x2ec 0x2f81⤵
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {c82192ee-6cb5-4bc0-9ef0-fb818773790a} -Embedding1⤵
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Windows\System32\drivers\etc\hosts2⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Bassincewtik_ls.cjstyles
isskin.dll
waterctrl.dll
Setup Sylenth1 v3.073.tmp
BASSMOD.dll
Bassincewtik.bat
R2RSYL1KG.dll
keygen.exe
hosts
hosts
memory/4092-71-0x0000000076D80000-0x0000000077333000-memory.dmp
memory/4092-64-0x00000000755B0000-0x00000000757C0000-memory.dmp
memory/4092-84-0x0000000076A30000-0x0000000076ADF000-memory.dmp
memory/4092-99-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-97-0x0000000074DC0000-0x0000000074DE2000-memory.dmp
memory/4092-96-0x00000000757E0000-0x0000000075854000-memory.dmp
memory/4092-95-0x0000000075E30000-0x0000000075F13000-memory.dmp
memory/4092-94-0x00000000755B0000-0x00000000757C0000-memory.dmp
memory/4092-93-0x0000000076D80000-0x0000000077333000-memory.dmp
memory/4092-92-0x0000000075A20000-0x0000000075AFC000-memory.dmp
memory/4092-91-0x0000000076A30000-0x0000000076ADF000-memory.dmp
memory/4092-90-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-89-0x0000000074C90000-0x0000000074DB4000-memory.dmp
memory/4092-88-0x0000000074DC0000-0x0000000074DE2000-memory.dmp
memory/4092-87-0x00000000757E0000-0x0000000075854000-memory.dmp
memory/4092-86-0x00000000755B0000-0x00000000757C0000-memory.dmp
memory/4092-85-0x0000000076D80000-0x0000000077333000-memory.dmp
memory/4092-82-0x0000000074C90000-0x0000000074DB4000-memory.dmp
memory/4092-81-0x00000000757E0000-0x0000000075854000-memory.dmp
memory/4092-80-0x0000000076BF0000-0x0000000076C15000-memory.dmp
memory/4092-79-0x00000000755B0000-0x00000000757C0000-memory.dmp
memory/4092-78-0x0000000076D80000-0x0000000077333000-memory.dmp
memory/4092-77-0x0000000076A30000-0x0000000076ADF000-memory.dmp
memory/4092-76-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-75-0x0000000074C90000-0x0000000074DB4000-memory.dmp
memory/4092-74-0x0000000074DC0000-0x0000000074DE2000-memory.dmp
memory/4092-73-0x00000000757E0000-0x0000000075854000-memory.dmp
memory/4092-72-0x00000000755B0000-0x00000000757C0000-memory.dmp
memory/4092-53-0x0000000074C90000-0x0000000074DB4000-memory.dmp
memory/4092-68-0x0000000074C90000-0x0000000074DB4000-memory.dmp
memory/4092-67-0x0000000074DC0000-0x0000000074DE2000-memory.dmp
memory/4092-66-0x00000000757E0000-0x0000000075854000-memory.dmp
memory/4092-65-0x0000000075E30000-0x0000000075F13000-memory.dmp
memory/4092-70-0x0000000076A30000-0x0000000076ADF000-memory.dmp
memory/4092-62-0x0000000075A20000-0x0000000075AFC000-memory.dmp
memory/4092-61-0x0000000076A30000-0x0000000076ADF000-memory.dmp
memory/4092-60-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-59-0x0000000074DC0000-0x0000000074DE2000-memory.dmp
memory/4092-58-0x0000000075E30000-0x0000000075F13000-memory.dmp
memory/4092-57-0x00000000755B0000-0x00000000757C0000-memory.dmp
memory/4092-83-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-69-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-63-0x0000000076D80000-0x0000000077333000-memory.dmp
memory/4092-55-0x0000000076A30000-0x0000000076ADF000-memory.dmp
memory/4092-56-0x0000000076D80000-0x0000000077333000-memory.dmp
memory/4092-42-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-50-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-49-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-48-0x0000000074E50000-0x0000000074E80000-memory.dmp
memory/4092-47-0x0000000076BF0000-0x0000000076C15000-memory.dmp
memory/4092-46-0x0000000077560000-0x00000000775DA000-memory.dmp
memory/4092-43-0x0000000077560000-0x00000000775DA000-memory.dmp
memory/4092-52-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-41-0x0000000077560000-0x00000000775DA000-memory.dmp
memory/4092-45-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-40-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-38-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-54-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4092-51-0x0000000076BF0000-0x0000000076C15000-memory.dmp
memory/4092-44-0x0000000076BF0000-0x0000000076C15000-memory.dmp
memory/4092-39-0x0000000077560000-0x00000000775DA000-memory.dmp
memory/4092-37-0x0000000077560000-0x00000000775DA000-memory.dmp
memory/4092-27-0x0000000004110000-0x0000000004170000-memory.dmp
memory/4592-2174-0x0000000010000000-0x0000000010013000-memory.dmp
memory/4640-10-0x0000000000605000-0x0000000000606000-memory.dmp
memory/4640-11-0x0000000000550000-0x0000000000621000-memory.dmp