Analysis
- max time kernel
150s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
04/05/2026, 09:20
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
939ca98cdb740f9fdac09faf8715fffc.dll
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
939ca98cdb740f9fdac09faf8715fffc.dll
Resource
win11-20260130-en
windows11-21h2-x64
11 signatures
150 seconds
General
- Target 939ca98cdb740f9fdac09faf8715fffc.dll
- Size 251KB
- Sample260504-larecaft4z
- SHA256 3a9fba21f6614bedb735303fbafde689e9c9fc875ef21c4dd32860c7fa9129c0
- MD5 939ca98cdb740f9fdac09faf8715fffc
- SHA1 820ee7ce34983f712753f1db0a6c474af65d72dd
- SHA512 63ea86e3fc92ca6f1601326ffebd96cbcff4810fee9420430705d09e40f75e3ebb2e9a480e847ec1142af7f49baba0d92c13a7ad11f818d00a21442e84ea1f9e
- SSDEEP 6144:7HHY/I2jPMCOK1SVXjxu/i6sfNvvtjTINdGnr:7H4TrMCOIyXjxu1sfdvtjTedGr
- TLSH T16644E053E49B7EEFCB8403B07068552A0094D504D6E6EB2BEAC4B08EC407E95BF5BDE4
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
Malware Config
Signatures
- Disables Task Manager via registry modification
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language notepad.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Modifies Internet Explorer Protected Mode 1 TTPs 10 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0\2500 = "3" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" notepad.exe Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" notepad.exe Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0\2500 = "3" notepad.exe Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" notepad.exe Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3" notepad.exe - Modifies Internet Explorer Protected Mode Banner 1 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" notepad.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Internet Explorer\Main rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Internet Explorer\Toolbar explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1" explorer.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Internet Explorer\Toolbar\ShellBrowser explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Internet Explorer\Main notepad.exe - Modifies registry class 9 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Key created \Registry\User\S-1-5-21-3847269522-1618051987-1942096715-1000_Classes\NotificationData explorer.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4008 explorer.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5160 rundll32.exe 5160 rundll32.exe 3936 notepad.exe 3936 notepad.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe 5160 rundll32.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4008 explorer.exe 4008 explorer.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5112 wrote to memory of 5160 5112 rundll32.exe 80 PID 5160 wrote to memory of 5172 5160 rundll32.exe 81 PID 5160 wrote to memory of 3936 5160 rundll32.exe 85
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\939ca98cdb740f9fdac09faf8715fffc.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:5112 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\939ca98cdb740f9fdac09faf8715fffc.dll,#12⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer Protected Mode
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5160 -
C:\Windows\SysWOW64\explorer.exeexplorer.exe3⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:5172
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C:\Windows\SysWOW64\notepad.exenotepad.exe3⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer Protected Mode
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
PID:3936
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{682159d9-c321-47ca-b3f1-30e36b2ec8b9} -Embedding1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4008
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {3eef301f-b596-4c0b-bd92-013beafce793} -Embedding1⤵PID:2536