agenttesla | hxxps://updown[.]fun/XkrzoAYQmBOR/file

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	OneDriveSetup.exe

Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
persistence privilege_escalation

Component Object Model Hijacking
T1546.015

Executes dropped EXE 6 IoCs

pid	Process
4832	MelanExploit.exe
4260	MelanExploit.exe
2448	OneDriveSetup.exe
4228	OneDriveSetup.exe
5452	FileSyncConfig.exe
5572	OneDrive.exe

Loads dropped DLL 47 IoCs

pid	Process
4832	MelanExploit.exe
4832	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
5452	FileSyncConfig.exe
5452	FileSyncConfig.exe
5452	FileSyncConfig.exe
5452	FileSyncConfig.exe
5452	FileSyncConfig.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe

Modifies system executable filetype association 2 TTPs 7 IoCs

persistence

Modify Registry

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\lnkfile\shellex\ContextMenuHandlers\ FileSyncEx\ = "{CB3D0F55-BC2C-4C1A-85ED-23ED75B5106B}"	OneDrive.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\lnkfile\shellex\ContextMenuHandlers\ FileSyncEx	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\lnkfile\shellex\ContextMenuHandlers\ FileSyncEx	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\lnkfile\shellex\ContextMenuHandlers\ FileSyncEx\ = "{CB3D0F55-BC2C-4C1A-85ED-23ED75B5106B}"	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\lnkfile\shellex\ContextMenuHandlers\ FileSyncEx	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\lnkfile\shellex\ContextMenuHandlers\ FileSyncEx\ = "{CB3D0F55-BC2C-4C1A-85ED-23ED75B5106B}"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\lnkfile\shellex\ContextMenuHandlers\ FileSyncEx	OneDrive.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Delete Cached Update Binary = "C:\\Windows\\system32\\cmd.exe /q /c del /q \"C:\\Users\\Admin\\AppData\\Local\\Microsoft\\OneDrive\\Update\\OneDriveSetup.exe\""	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Delete Cached Standalone Update Binary = "C:\\Windows\\system32\\cmd.exe /q /c del /q \"C:\\Users\\Admin\\AppData\\Local\\Microsoft\\OneDrive\\StandaloneUpdater\\OneDriveSetup.exe\""	OneDriveSetup.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks system information in the registry 2 TTPs 6 IoCs

System information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemManufacturer	OneDriveSetup.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemProductName	OneDriveSetup.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemManufacturer	OneDriveSetup.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemProductName	OneDriveSetup.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemManufacturer	OneDrive.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemProductName	OneDrive.exe

Embeds OpenSSL 1 IoCs

Embeds OpenSSL, may be used to circumvent TLS interception.

resource	yara_rule
behavioral1/files/0x00070000000234f7-1396.dat	embeds_openssl

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OneDriveSetup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OneDriveSetup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FileSyncConfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OneDrive.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OneDrive.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe

Checks processor information in registry 2 TTPs 10 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~Mhz	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	firefox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~Mhz	firefox.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	OneDrive.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	OneDrive.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	MelanExploit.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	MelanExploit.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	MelanExploit.exe

Modifies Internet Explorer settings 1 TTPs 10 IoCs

adware spyware

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\OneDrive.exe = "11000"	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\IESettingSync	OneDrive.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	OneDriveSetup.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\OneDrive.exe = "11000"	OneDrive.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\OneDrive.exe = "11000"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	OneDrive.exe

Modifies registry class 64 IoCs

description	ioc	Process
Key deleted	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\TypeLib\{F904F88C-E60D-4327-9FA2-865AD075B400}\1.0	OneDriveSetup.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_CLASSES\NUCLEUSTOASTACTIVATOR.NUCLEUSTOASTACTIVATOR\CLSID	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{50487D09-FFA9-45E1-8DF5-D457F646CD83}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{ACDB5DB0-C9D5-461C-BAAA-5DCE0B980E40}\TypeLib	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\CLSID\{389510b7-9e58-40d7-98bf-60b911cb0ea9}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\OneDrive\\18.151.0729.0013\\FileCoAuth.exe"	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{AF60000F-661D-472A-9588-F062F6DB7A0E}\ = "ILoginCallback"	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\CLSID\{A926714B-7BFC-4D08-A035-80021395FFA8}\ = "FileSyncOutOfProcServices Class"	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{917E8742-AA3B-7318-FA12-10485FB322A2}\LocalServer32	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{71DCE5D6-4B57-496B-AC21-CD5B54EB93FD}\VersionIndependentProgID	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{9489FEB2-1925-4D01-B788-6D912C70F7F2}\LocalServer32	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{679EC955-75AA-4FB2-A7ED-8C0152ECF409}\ProxyStubClsid32	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{466F31F7-9892-477E-B189-FA5C59DE3603}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{6bb93b4e-44d8-40e2-bd97-42dbcf18a40f}	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{e9de26a1-51b2-47b4-b1bf-c87059cc02a7}\TypeLib\ = "{909A6CCD-6810-46C4-89DF-05BE7EB61E6C}"	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{a7126d4c-f492-4eb9-8a2a-f673dbdd3334}\ = "IContentProvider"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\SyncEngineFileInfoProvider.SyncEngineFileInfoProvider\CLSID	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{fac14b75-7862-4ceb-be41-f53945a61c17}\ProxyStubClsid32	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{AF60000F-661D-472A-9588-F062F6DB7A0E}\TypeLib\Version = "1.0"	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{f0440f4e-4884-4a8F-8a45-ba89c00f96f2}\ = "IUnmapLibraryCallback"	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{71DCE5D6-4B57-496B-AC21-CD5B54EB93FD}\ = "SyncEngineFileInfoProvider Class"	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{7B37E4E2-C62F-4914-9620-8FB5062718CC}\VersionIndependentProgID\ = "FileSyncClient.FileSyncClient"	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{C2FE84F5-E036-4A07-950C-9BFD3EAB983A}\TypeLib\Version = "1.0"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\SyncEngineStorageProviderHandlerProxy.SyncEngineStorageProviderHandlerProxy.1	OneDrive.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_CLASSES\WOW6432NODE\INTERFACE\{2B865677-AC3A-43BD-B9E7-BF6FCD3F0596}\TYPELIB	OneDriveSetup.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{d8c80ebb-099c-4208-afa3-fbc4d11f8a3c}\TypeLib	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\CLSID\{9489FEB2-1925-4D01-B788-6D912C70F7F2}\VersionIndependentProgID	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{2B865677-AC3A-43BD-B9E7-BF6FCD3F0596}\ = "IFileSyncClient11"	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{049FED7E-C3EA-4B66-9D92-10E8085D60FB}\TypeLib	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{2F12C599-7AA5-407A-B898-09E6E4ED2D1E}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{0f872661-c863-47a4-863f-c065c182858a}\ = "IFileSyncClient4"	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{021E4F06-9DCC-49AD-88CF-ECC2DA314C8A}\ = "FileSync ThumbnailProvider"	OneDrive.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\TypeLib\{BAE13F6C-0E2A-4DEB-AA46-B8F55319347C}\1.0\0	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{b5c25645-7426-433f-8a5f-42b7ff27a7b2}\ProxyStubClsid32	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{CB3D0F55-BC2C-4C1A-85ED-23ED75B5106B}	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{0f872661-c863-47a4-863f-c065c182858a}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\TypeLib\{4B1C80DA-FA45-468F-B42B-46496BDBE0C5}\1.0\HELPDIR	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{e9de26a1-51b2-47b4-b1bf-c87059cc02a7}\ProxyStubClsid32	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{A3CA1CF4-5F3E-4AC0-91B9-0D3716E1EAC3}\ProgID	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{389510b7-9e58-40d7-98bf-60b911cb0ea9}\LocalServer32\ = "\"C:\\Users\\Admin\\AppData\\Local\\Microsoft\\OneDrive\\21.220.1024.0005\\FileCoAuth.exe\""	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\CLSID\{4410DC33-BC7C-496B-AA84-4AEA3EEE75F7}\InProcServer32\ThreadingModel = "Both"	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{EA23A664-A558-4548-A8FE-A6B94D37C3CF}\TypeLib\Version = "1.0"	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{82CA8DE3-01AD-4CEA-9D75-BE4C51810A9E}\InprocServer32	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{a7126d4c-f492-4eb9-8a2a-f673dbdd3334}	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{94269C4E-071A-4116-90E6-52E557067E4E}\TypeLib\ = "{638805C3-4BA3-4AC8-8AAC-71A0BA2BC284}"	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{466F31F7-9892-477E-B189-FA5C59DE3603}\TypeLib\Version = "1.0"	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\FileSyncClient.AutoPlayHandler\CurVer\ = "FileSyncClient.AutoPlayHandler.1"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{2692D1F2-2C7C-4AE0-8E73-8F37736C912D}	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{a7126d4c-f492-4eb9-8a2a-f673dbdd3334}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\CLSID\{A926714B-7BFC-4D08-A035-80021395FFA8}\VersionIndependentProgID\ = "FileSyncOutOfProcServices.FileSyncOutOfProcServices"	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{7B37E4E2-C62F-4914-9620-8FB5062718CC}\ProgID\ = "FileSyncClient.FileSyncClient.1"	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\CLSID\{20894375-46AE-46E2-BAFD-CB38975CDCE6}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\OneDrive\\21.220.1024.0005\\amd64\\FileSyncShell64.dll"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{0776ae27-5ab9-4e18-9063-1836da63117a}\ProxyStubClsid32	OneDrive.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\odopen	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{4410DC33-BC7C-496B-AA84-4AEA3EEE75F7}\ProxyStubClsid32	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{2692D1F2-2C7C-4AE0-8E73-8F37736C912D}\TypeLib\ = "{909A6CCD-6810-46C4-89DF-05BE7EB61E6C}"	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{389510b7-9e58-40d7-98bf-60b911cb0ea9}\VersionIndependentProgID	OneDriveSetup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\Interface\{2B865677-AC3A-43BD-B9E7-BF6FCD3F0596}\TypeLib\ = "{909A6CCD-6810-46C4-89DF-05BE7EB61E6C}"	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{AF60000F-661D-472A-9588-F062F6DB7A0E}\TypeLib	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{466F31F7-9892-477E-B189-FA5C59DE3603}	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{f0440f4e-4884-4a8F-8a45-ba89c00f96f2}\TypeLib	OneDrive.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\odopen\shell\open\command	OneDrive.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\WOW6432Node\CLSID\{6bb93b4e-44d8-40e2-bd97-42dbcf18a40f}\ = "ToastActivator Class"	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\CLSID\{71DCE5D6-4B57-496B-AC21-CD5B54EB93FD}	OneDriveSetup.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Interface\{AF60000F-661D-472A-9588-F062F6DB7A0E}	OneDrive.exe

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\Downloads\MelanExploit.rar:Zone.Identifier	firefox.exe

Opens file in notepad (likely ransom note) 2 IoCs

ransomware

pid	Process
3536	NOTEPAD.EXE
3984	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
996	OneDrive.exe
5572	OneDrive.exe

Suspicious behavior: EnumeratesProcesses 49 IoCs

pid	Process
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
4260	MelanExploit.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
996	OneDrive.exe
996	OneDrive.exe
2448	OneDriveSetup.exe
2448	OneDriveSetup.exe
2448	OneDriveSetup.exe
2448	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
4228	OneDriveSetup.exe
5572	OneDrive.exe
5572	OneDrive.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	firefox.exe
Token: SeDebugPrivilege	2744	firefox.exe
Token: SeDebugPrivilege	2744	firefox.exe
Token: SeDebugPrivilege	2744	firefox.exe
Token: SeDebugPrivilege	2744	firefox.exe
Token: SeDebugPrivilege	2744	firefox.exe
Token: SeRestorePrivilege	3536	7zG.exe
Token: 35	3536	7zG.exe
Token: SeSecurityPrivilege	3536	7zG.exe
Token: SeSecurityPrivilege	3536	7zG.exe
Token: SeRestorePrivilege	4228	7z.exe
Token: 35	4228	7z.exe
Token: SeSecurityPrivilege	4228	7z.exe
Token: SeSecurityPrivilege	4228	7z.exe
Token: SeDebugPrivilege	4260	MelanExploit.exe
Token: SeDebugPrivilege	2744	firefox.exe
Token: SeDebugPrivilege	3508	taskmgr.exe
Token: SeSystemProfilePrivilege	3508	taskmgr.exe
Token: SeCreateGlobalPrivilege	3508	taskmgr.exe
Token: 33	3508	taskmgr.exe
Token: SeIncBasePriorityPrivilege	3508	taskmgr.exe
Token: SeIncreaseQuotaPrivilege	2448	OneDriveSetup.exe
Token: SeIncreaseQuotaPrivilege	4228	OneDriveSetup.exe
Token: SeDebugPrivilege	2744	firefox.exe

Suspicious use of FindShellTrayWindow 61 IoCs

pid	Process
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
3536	7zG.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
996	OneDrive.exe
996	OneDrive.exe
996	OneDrive.exe
996	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe

Suspicious use of SendNotifyMessage 59 IoCs

pid	Process
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
3508	taskmgr.exe
996	OneDrive.exe
996	OneDrive.exe
996	OneDrive.exe
996	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
4832	MelanExploit.exe
2744	firefox.exe
2744	firefox.exe
2744	firefox.exe
996	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe
5572	OneDrive.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 2744	2984	firefox.exe	84
PID 2984 wrote to memory of 2744	2984	firefox.exe	84
PID 2984 wrote to memory of 2744	2984	firefox.exe	84
PID 2984 wrote to memory of 2744	2984	firefox.exe	84
PID 2984 wrote to memory of 2744	2984	firefox.exe	84
PID 2984 wrote to memory of 2744	2984	firefox.exe	84
PID 2984 wrote to memory of 2744	2984	firefox.exe	84
PID 2984 wrote to memory of 2744	2984	firefox.exe	84
PID 2984 wrote to memory of 2744	2984	firefox.exe	84
PID 2984 wrote to memory of 2744	2984	firefox.exe	84
PID 2984 wrote to memory of 2744	2984	firefox.exe	84
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1644	2744	firefox.exe	85
PID 2744 wrote to memory of 1516	2744	firefox.exe	86
PID 2744 wrote to memory of 1516	2744	firefox.exe	86
PID 2744 wrote to memory of 1516	2744	firefox.exe	86
PID 2744 wrote to memory of 1516	2744	firefox.exe	86
PID 2744 wrote to memory of 1516	2744	firefox.exe	86
PID 2744 wrote to memory of 1516	2744	firefox.exe	86
PID 2744 wrote to memory of 1516	2744	firefox.exe	86
PID 2744 wrote to memory of 1516	2744	firefox.exe	86

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "https://updown.fun/XkrzoAYQmBOR/file"
1⤵
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://updown.fun/XkrzoAYQmBOR/file
  2⤵
  - Checks processor information in registry
  - NTFS ADS
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=1980 -parentBuildID 20240401114208 -prefsHandle 1896 -prefMapHandle 1888 -prefsLen 23680 -prefMapSize 244658 -appDir "C:\Program Files\Mozilla Firefox\browser" - {61620a58-56ba-4116-9f7a-514ec4747e73} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" gpu
    3⤵
    PID:1644
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=2476 -parentBuildID 20240401114208 -prefsHandle 2452 -prefMapHandle 2448 -prefsLen 24600 -prefMapSize 244658 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {3773d98d-9994-41e3-98b8-800a9e40a57e} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" socket
    3⤵
    PID:1516
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=3296 -childID 1 -isForBrowser -prefsHandle 3348 -prefMapHandle 2812 -prefsLen 22652 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {7d95a5c4-eaca-44a3-a795-4f28dfcca6f1} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:4968
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=3712 -childID 2 -isForBrowser -prefsHandle 2944 -prefMapHandle 2784 -prefsLen 29090 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {24e6acca-f284-4cdc-bdca-0e2f8ef86aed} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:432
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=4620 -parentBuildID 20240401114208 -sandboxingKind 0 -prefsHandle 4612 -prefMapHandle 4608 -prefsLen 29090 -prefMapSize 244658 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {0c94da76-ee50-4935-bf0d-cb060122e7e7} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" utility
    3⤵
    - Checks processor information in registry
    PID:3736
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5232 -childID 3 -isForBrowser -prefsHandle 5276 -prefMapHandle 5272 -prefsLen 26944 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {669c909d-487d-4c70-86c8-eafe757682e9} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:4144
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5424 -childID 4 -isForBrowser -prefsHandle 5432 -prefMapHandle 5440 -prefsLen 26944 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {16d58b29-0444-4003-9a1d-35b7b6baf434} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:4660
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5616 -childID 5 -isForBrowser -prefsHandle 5692 -prefMapHandle 5688 -prefsLen 26944 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {708af743-135c-4fc1-8db7-b875d61821f0} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:936
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=6128 -childID 6 -isForBrowser -prefsHandle 6124 -prefMapHandle 6120 -prefsLen 27132 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {606bb19b-3250-453c-9a2f-bb5b9d8badd0} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:3472
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=2760 -childID 7 -isForBrowser -prefsHandle 5424 -prefMapHandle 5844 -prefsLen 27132 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {a67b97c7-92ef-4fde-b30c-49ccce009cac} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:4080
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=4564 -childID 8 -isForBrowser -prefsHandle 1328 -prefMapHandle 6076 -prefsLen 27919 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {743e1c71-0203-4b93-b80a-a5d8c8436131} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:916
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=6212 -childID 9 -isForBrowser -prefsHandle 6200 -prefMapHandle 6204 -prefsLen 27919 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {d0ba87f0-8ba2-426a-b30d-532f2a9e2d6c} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:4580
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5620 -childID 10 -isForBrowser -prefsHandle 6448 -prefMapHandle 6436 -prefsLen 28163 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {f8fe818d-31be-44d3-bb36-1cb748f82771} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:3880
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5560 -childID 11 -isForBrowser -prefsHandle 5896 -prefMapHandle 5948 -prefsLen 28163 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {2a49fdbe-d09a-4335-80d9-5340ad8f3bf4} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:4984
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5528 -childID 12 -isForBrowser -prefsHandle 4564 -prefMapHandle 5508 -prefsLen 28163 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {72ee6ba1-9f19-403d-b6a3-0585aa485401} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:760
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=6272 -childID 13 -isForBrowser -prefsHandle 6480 -prefMapHandle 6412 -prefsLen 28163 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {f7cff8f7-f42d-41f6-a573-4f3819f63337} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:3692
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5400 -childID 14 -isForBrowser -prefsHandle 1436 -prefMapHandle 4072 -prefsLen 28163 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {c7b1472d-47b2-4bfe-ac42-ba1915afc359} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:3388
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5788 -childID 15 -isForBrowser -prefsHandle 5388 -prefMapHandle 3672 -prefsLen 28163 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {548ad4a3-685a-4a7f-bc03-c96581f8d971} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:5100
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=6724 -childID 16 -isForBrowser -prefsHandle 4516 -prefMapHandle 1440 -prefsLen 28163 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {fdef9965-07ce-4372-9539-b264c16f63ca} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:636
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=6988 -childID 17 -isForBrowser -prefsHandle 5940 -prefMapHandle 5160 -prefsLen 28259 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {ac03022b-ea9a-48e3-8ad0-e12ab6e0a80f} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:1116
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5756 -childID 18 -isForBrowser -prefsHandle 5088 -prefMapHandle 2084 -prefsLen 28259 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {67d528d4-76d6-4b33-9939-55f2d9859481} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:1480
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=6508 -childID 19 -isForBrowser -prefsHandle 6888 -prefMapHandle 6920 -prefsLen 28259 -prefMapSize 244658 -jsInitHandle 892 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {8dab0899-f556-4377-9e49-2d9805ea3b40} 2744 "\\.\pipe\gecko-crash-server-pipe.2744" tab
    3⤵
    PID:5004

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:408

C:\Program Files\7-Zip\7zG.exe
"C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\MelanExploit\" -ad -an -ai#7zMap28676:86:7zEvent1717
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3536

C:\Users\Admin\Downloads\MelanExploit\MelanExploit.exe
"C:\Users\Admin\Downloads\MelanExploit\MelanExploit.exe"
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
PID:4832
- C:\Program Files\7-Zip\7z.exe
  "C:\Program Files\7-Zip\7z.exe" x "MelanExploit.rar" -o"MelanExploit"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4228

C:\Users\Admin\Downloads\MelanExploit\MelanExploit\MelanExploit.exe
"C:\Users\Admin\Downloads\MelanExploit\MelanExploit\MelanExploit.exe"
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4260

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Downloads\MelanExploit\zlib1.txt
1⤵
- Opens file in notepad (likely ransom note)
PID:3536

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Downloads\MelanExploit\libcurl.txt
1⤵
- Opens file in notepad (likely ransom note)
PID:3984

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3508

C:\Users\Admin\AppData\Local\Microsoft\OneDrive\OneDrive.exe
"C:\Users\Admin\AppData\Local\Microsoft\OneDrive\OneDrive.exe"
1⤵
- Modifies system executable filetype association
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:996
- C:\Users\Admin\AppData\Local\Microsoft\OneDrive\Update\OneDriveSetup.exe
  "C:\Users\Admin\AppData\Local\Microsoft\OneDrive\Update\OneDriveSetup.exe" /update /restart
  2⤵
  - Executes dropped EXE
  - Checks system information in the registry
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2448
- - C:\Users\Admin\AppData\Local\Microsoft\OneDrive\Update\OneDriveSetup.exe
    C:\Users\Admin\AppData\Local\Microsoft\OneDrive\Update\OneDriveSetup.exe /update /restart /peruser /childprocess /extractFilesWithLessThreadCount /renameReplaceOneDriveExe /renameReplaceODSUExe /removeNonCurrentVersions /enableODSUReportingMode
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Modifies system executable filetype association
    - Adds Run key to start application
    - Checks system information in the registry
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4228
  - - C:\Users\Admin\AppData\Local\Microsoft\OneDrive\21.220.1024.0005\FileSyncConfig.exe
      "C:\Users\Admin\AppData\Local\Microsoft\OneDrive\21.220.1024.0005\FileSyncConfig.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:5452
  - - C:\Users\Admin\AppData\Local\Microsoft\OneDrive\OneDrive.exe
      /updateInstalled /background
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Modifies system executable filetype association
      Checks system information in the registry
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Modifies registry class
      Suspicious behavior: AddClipboardFormatListener
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of FindShellTrayWindow
      Suspicious use of SendNotifyMessage
      Suspicious use of SetWindowsHookEx
      PID:5572

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s fdPHost
1⤵
PID:5388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Component Object Model Hijacking

T1546.015

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Component Object Model Hijacking

T1546.015

Defense Evasion

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery