Analysis
- max time kernel
150s - max time network
143s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/09/2026, 01:48
Behavioral task
behavioral1
Sample
jaffacakes118__3398b3c6481b05474385fba06f4a5c72.dll
Resource
win10v2004-20260911-en
18 signatures
150 seconds
General
- Target jaffacakes118__3398b3c6481b05474385fba06f4a5c72.dll
- Size 186KB
- Sample260920-b77gqazelg
- SHA256 1425245d5411f7e4a84ca96c98c40a8e6f92ea1067e34b4e50a3836ebe4cf9b7
- MD5 3398b3c6481b05474385fba06f4a5c72
- SHA1 f012d66ae1966662de0065fbe3414bc26858d4be
- SHA512 a56357d0fc954307ada0082ebef37cf2cbc164d28a3075bda065671a659b2dbc8ea28ea69a4293c93b591ebe5ad50486e35186121afb3189b4cff9ab51b01739
- SSDEEP 3072:miWCS7xuM7OLOqWTVvUZBb16GnO0NjO7E4ogjI5YNGaUjv29KbXgftbw9EndJ6ow:mfVMM7OOqmVva6GO0af85Y0aEOMbyRw9
- TLSH T15914024BA040129AC6E505BC28EEEF67DB4846D0BEB18510CEB3959F1D09BF396FC706
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Conficker worm 3 IoCs
resource yara_rule behavioral2/memory/3648-3-0x0000000000BC0000-0x0000000000BE1000-memory.dmp family_conficker behavioral2/memory/3648-5-0x0000000000BC0000-0x0000000000BE1000-memory.dmp family_conficker behavioral2/memory/3648-2-0x0000000000BC0000-0x0000000000BE1000-memory.dmp family_conficker - Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "0" rundll32.exe - Modifies visibility of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" rundll32.exe - Drops desktop.ini file(s) 3 IoCs
description ioc Process File opened for modification C:\Users\Admin\Pictures\desktop.ini explorer.exe File opened for modification C:\Users\Public\desktop.ini explorer.exe File opened for modification C:\Users\Public\Pictures\desktop.ini explorer.exe - Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\V: rundll32.exe File opened (read-only) \??\U: rundll32.exe -
resource yara_rule behavioral2/memory/3648-0-0x0000000010000000-0x000000001001B000-memory.dmp upx behavioral2/memory/3648-7-0x0000000010000000-0x000000001001B000-memory.dmp upx - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language explorer.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000\Software\Microsoft\Internet Explorer\Toolbar explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1" explorer.exe - Modifies registry class 43 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 0100000000000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0 = 19002f433a5c000000000000000000000000000000000000000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0 = 50003100000000002c5d3113100041646d696e003c0009000400efbe2c5d8308345d090e2e000000720000000000020000000000000000000000000000002a979000410064006d0069006e00000014000000 explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1CF1260C-4DD0-4ebb-811F-33C572699FDE}\Instance\ explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\Instance\ explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{374DE290-123F-4565-9164-39C4925E467B}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2 explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{374DE290-123F-4565-9164-39C4925E467B}\Instance\ explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1CF1260C-4DD0-4ebb-811F-33C572699FDE}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A0953C92-50DC-43bf-BE83-3742FED03C9C}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell\SniffedFolderType = "Generic" explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{3ADD1653-EB32-4cb0-BBD7-DFA0ABB5ACCA}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0 = 78003100000000002c5d83081100557365727300640009000400efbe8158a93a345d090e2e000000880600000000010000000000000000003a0000000000afd0db0055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000 explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\NodeSlot = "2" explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\NotificationData explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0 = 56003100000000002c5d830812004170704461746100400009000400efbe2c5d83082c5d23092e0000007d00000000000200000000000000000000000000000041b7c4004100700070004400610074006100000016000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 0202 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4280978039-528710165-233981602-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{3ADD1653-EB32-4cb0-BBD7-DFA0ABB5ACCA}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A0953C92-50DC-43bf-BE83-3742FED03C9C}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\ explorer.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4224 explorer.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3648 rundll32.exe 3648 rundll32.exe 3648 rundll32.exe 3648 rundll32.exe 3648 rundll32.exe 3648 rundll32.exe - Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 5140 Process not Found 4224 explorer.exe - Suspicious use of AdjustPrivilegeToken 13 IoCs
description pid Process Token: SeDebugPrivilege 3648 rundll32.exe Token: SeShutdownPrivilege 5140 Process not Found Token: SeCreatePagefilePrivilege 5140 Process not Found Token: SeShutdownPrivilege 5140 Process not Found Token: SeCreatePagefilePrivilege 5140 Process not Found Token: SeShutdownPrivilege 5140 Process not Found Token: SeCreatePagefilePrivilege 5140 Process not Found Token: SeShutdownPrivilege 5140 Process not Found Token: SeCreatePagefilePrivilege 5140 Process not Found Token: SeShutdownPrivilege 5140 Process not Found Token: SeCreatePagefilePrivilege 5140 Process not Found Token: SeShutdownPrivilege 5140 Process not Found Token: SeCreatePagefilePrivilege 5140 Process not Found - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4224 explorer.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4224 explorer.exe - Suspicious use of UnmapMainImage 1 IoCs
pid Process 5140 Process not Found - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3748 wrote to memory of 3648 3748 rundll32.exe 88 PID 3648 wrote to memory of 4940 3648 rundll32.exe 90
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118__3398b3c6481b05474385fba06f4a5c72.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3748 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118__3398b3c6481b05474385fba06f4a5c72.dll,#12⤵
- Modifies visibility of file extensions in Explorer
- Modifies visibility of hidden/system files in Explorer
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3648 -
C:\Windows\SysWOW64\explorer.exeexplorer C:\Users\Admin\AppData3⤵
- System Location Discovery: System Language Discovery
PID:4940
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Drops desktop.ini file(s)
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4224
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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⤵PID:6116