Analysis
- max time kernel
148s - max time network
127s - 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, 10:15
Behavioral task
behavioral1
Sample
jaffacakes118__42edb8987185267b49a6cadf33cc44b1.dll
Resource
win10v2004-20260911-en
18 signatures
150 seconds
General
- Target jaffacakes118__42edb8987185267b49a6cadf33cc44b1.dll
- Size 163KB
- Sample260920-macfvsfn9z
- SHA256 68a9095453aa6c84ec523c08dff1d66fdb1896faadab0cf3e54a4caa7b871f53
- MD5 42edb8987185267b49a6cadf33cc44b1
- SHA1 c11e814cdf0e51f3d42cf9db33a2129f7deaa8ce
- SHA512 9025f7cc3a44ac0a1ab7179a192d5ce0c49f489edae9f9f61aa4ae6286a19404699ef78ebd9a2df66c0a6d6687603c93ea000f780e73afd949e0c56847f427a9
- SSDEEP 3072:aEZQasrm5D/cVj/dPKJzRb14ihg844BzfU10Fwn0poOYq4tQU28Z+OUhsA7wX0:L+aR5+jKW844Bja0qOn4tQl8rwBcX0
- TLSH T15CF3121850060B82E5ED8BFBBD6D99A5276DF0C650A70603AC645DAC74F3FE9933E027
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Conficker worm 4 IoCs
resource yara_rule behavioral2/memory/4372-4-0x0000000000E80000-0x0000000000EA1000-memory.dmp family_conficker behavioral2/memory/4372-5-0x0000000000E80000-0x0000000000EA1000-memory.dmp family_conficker behavioral2/memory/4372-7-0x0000000000E80000-0x0000000000EA1000-memory.dmp family_conficker behavioral2/memory/4372-11-0x0000000000E80000-0x0000000000EA1000-memory.dmp family_conficker - Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\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-1-5-21-4154726816-2055034831-2297277433-1000\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\Public\Pictures\desktop.ini explorer.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini explorer.exe File opened for modification C:\Users\Public\desktop.ini explorer.exe - Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\J: rundll32.exe -
resource yara_rule behavioral2/memory/4372-0-0x0000000010000000-0x000000001001B000-memory.dmp upx behavioral2/memory/4372-10-0x0000000010000000-0x000000001001B000-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-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Internet Explorer\Toolbar explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1" explorer.exe - Modifies registry class 43 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{374DE290-123F-4565-9164-39C4925E467B}\Instance\ explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\Instance\ explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\MRUListEx = 00000000ffffffff 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\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0 = 78003100000000002b5d627c1100557365727300640009000400efbe8158a93a345deb512e000000880600000000010000000000000000003a0000000000a410420055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0 = 50003100000000002b5de088100041646d696e003c0009000400efbe2b5d627c345deb512e00000071000000000002000000000000000000000000000000b256d900410064006d0069006e00000014000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\NotificationData explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{3ADD1653-EB32-4cb0-BBD7-DFA0ABB5ACCA}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 0202 explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\NodeSlot = "2" explorer.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_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\{A0953C92-50DC-43bf-BE83-3742FED03C9C}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 0100000000000000ffffffff explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell\SniffedFolderType = "Generic" explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{374DE290-123F-4565-9164-39C4925E467B}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0 = 56003100000000002b5d627c12004170704461746100400009000400efbe2b5d627c2b5d087d2e0000007c000000000002000000000000000000000000000000b98623004100700070004400610074006100000016000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2 explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1CF1260C-4DD0-4ebb-811F-33C572699FDE}\Instance\ explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A0953C92-50DC-43bf-BE83-3742FED03C9C}\Instance\ explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0 = 19002f433a5c000000000000000000000000000000000000000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0 explorer.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 572 explorer.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4372 rundll32.exe 4372 rundll32.exe 4372 rundll32.exe 4372 rundll32.exe 4372 rundll32.exe 4372 rundll32.exe - Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 4700 Process not Found 572 explorer.exe - Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeDebugPrivilege 4372 rundll32.exe Token: SeShutdownPrivilege 4700 Process not Found Token: SeCreatePagefilePrivilege 4700 Process not Found Token: SeShutdownPrivilege 4700 Process not Found Token: SeCreatePagefilePrivilege 4700 Process not Found Token: SeShutdownPrivilege 4700 Process not Found Token: SeCreatePagefilePrivilege 4700 Process not Found Token: SeShutdownPrivilege 4700 Process not Found Token: SeCreatePagefilePrivilege 4700 Process not Found Token: SeShutdownPrivilege 4700 Process not Found Token: SeCreatePagefilePrivilege 4700 Process not Found Token: SeShutdownPrivilege 4700 Process not Found Token: SeCreatePagefilePrivilege 4700 Process not Found Token: SeShutdownPrivilege 4700 Process not Found Token: SeCreatePagefilePrivilege 4700 Process not Found Token: SeShutdownPrivilege 4700 Process not Found Token: SeCreatePagefilePrivilege 4700 Process not Found - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 572 explorer.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 572 explorer.exe - Suspicious use of UnmapMainImage 1 IoCs
pid Process 4700 Process not Found - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4200 wrote to memory of 4372 4200 rundll32.exe 88 PID 4372 wrote to memory of 1464 4372 rundll32.exe 90
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118__42edb8987185267b49a6cadf33cc44b1.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4200 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118__42edb8987185267b49a6cadf33cc44b1.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:4372 -
C:\Windows\SysWOW64\explorer.exeexplorer C:\Users\Admin\AppData3⤵
- System Location Discovery: System Language Discovery
PID:1464
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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:572
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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:1356