E:\PROJECT\FancyCache\release\drv\winlh\amd64\rxfcv_srv_raw.pdb
Static task
static1
Behavioral task
behavioral1
Sample
rxfcv.sys
Resource
win10v2004-20240426-en
General
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Target
3d461958429837445a013252f9c7c492235513c8cecb31686dd487d00218870a
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Size
112KB
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MD5
077c987760bbff1a2b9332f4ef668819
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SHA1
bd43b97046f7eb4721ee791afea4642c79dbf573
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SHA256
3d461958429837445a013252f9c7c492235513c8cecb31686dd487d00218870a
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SHA512
6895b99475ccef2f5e1e9cb26812c26dfdc7aa0921badc033c060e51689f744facad6bf2aa75cc08068b0c983a4c475524c80115c74ee3a0791883c318384265
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SSDEEP
1536:vZPZXiR8ChzrrZChkrrmBef63ldEmOlWN0QfSdsj8HbvoleyLmDeXQBDZuhPQVS8:ziRHrYhk3S3ldEjIN0QfNM7o1AeuS8
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/rxfcv.sys
Files
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3d461958429837445a013252f9c7c492235513c8cecb31686dd487d00218870a.zip
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rxfcv.sys.sys windows:10 windows x64 arch:x64
58ecbaaab3100bdda10da5c8f0945a4d
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
PDB Paths
Imports
rxbsknl.sys
RxbsCreateHyperDevice
RxbsCloseHyperDevice
RxbsSetParamHyperSystem
RxbsGetParamHyperSystem
RxbsStartHyperSystem
RxbsGetHyperSystemState
RxbsConnectHyperSystem
RxbsDisconnectHyperSystem
ntoskrnl.exe
KeSetPriorityThread
KeWaitForSingleObject
ExFreePoolWithTag
ExInterlockedRemoveHeadList
PsTerminateSystemThread
KeInitializeEvent
KeInitializeGuardedMutex
KeAcquireGuardedMutex
KeReleaseGuardedMutex
ExAllocatePoolWithTag
ExQueryDepthSList
ExpInterlockedPopEntrySList
ExpInterlockedPushEntrySList
ExInitializeNPagedLookasideList
ExDeleteNPagedLookasideList
MmMapLockedPagesSpecifyCache
MmUnmapLockedPages
MmMapIoSpace
MmUnmapIoSpace
IoAllocateMdl
IoFreeMdl
RtlCompareMemory
ExUuidCreate
RtlInitUnicodeString
KeClearEvent
KeSetEvent
ExInterlockedInsertTailList
IofCompleteRequest
IoCreateDevice
IoCreateSymbolicLink
IoDeleteDevice
IoDeleteSymbolicLink
IoRegisterShutdownNotification
IoRegisterLastChanceShutdownNotification
IoUnregisterShutdownNotification
ObfDereferenceObject
RtlCopyUnicodeString
IoAttachDeviceToDeviceStack
IoBuildSynchronousFsdRequest
IofCallDriver
IoInitializeRemoveLockEx
IoAcquireRemoveLockEx
IoReleaseRemoveLockEx
IoRegisterDeviceInterface
ZwClose
IoRegisterBootDriverReinitialization
IoRegisterDriverReinitialization
IoGetAttachedDevice
InitSafeBootMode
IoReleaseRemoveLockAndWaitEx
KeInitializeDpc
KeFlushQueuedDpcs
KeInitializeTimer
KeCancelTimer
KeSetTimerEx
KeInsertQueue
RtlFreeUnicodeString
RtlStringFromGUID
ZwEnumerateValueKey
ZwSetValueKey
KeReadStateEvent
KeReadStateTimer
KeSetTimer
KeWaitForMultipleObjects
KeAcquireInStackQueuedSpinLock
KeReleaseInStackQueuedSpinLock
KeQueryActiveProcessorCount
KeDelayExecutionThread
IoAllocateIrp
IoBuildPartialMdl
IoFreeIrp
KeRemoveQueue
ExAllocatePoolWithTagPriority
ZwQueryValueKey
KeEnterCriticalRegion
KeLeaveCriticalRegion
IoDetachDevice
IoSetDeviceInterfaceState
ZwCreateFile
ZwOpenFile
ZwQueryInformationFile
ZwReadFile
ZwWriteFile
ZwDeleteFile
_vsnwprintf
RtlAppendUnicodeStringToString
KdDisableDebugger
KdEnableDebugger
ZwCreateSection
ZwMapViewOfSection
ZwUnmapViewOfSection
KdDebuggerEnabled
_strnicmp
RtlGUIDFromString
RtlCreateSecurityDescriptor
RtlSetDaclSecurityDescriptor
ZwCreateKey
ZwOpenKey
ZwDeleteValueKey
RtlLengthSid
RtlCreateAcl
RtlAddAccessAllowedAce
RtlSetOwnerSecurityDescriptor
ZwSetSecurityObject
ObReferenceObjectByName
SeExports
KeGetCurrentIrql
IoGetStackLimits
ExEventObjectType
ExWindowStationObjectType
KeBugCheckEx
KeRevertToUserAffinityThreadEx
KeSetSystemAffinityThreadEx
MmBuildMdlForNonPagedPool
MmAllocatePagesForMdlEx
MmFreePagesFromMdl
MmCreateMdl
MmGetPhysicalMemoryRanges
ZwQuerySystemInformation
PsCreateSystemThread
ObReferenceObjectByHandle
KeInitializeQueue
KeRundownQueue
wcschr
RtlUnicodeStringToInteger
RtlEqualUnicodeString
IoAllocateErrorLogEntry
IoBuildDeviceIoControlRequest
IoGetDeviceObjectPointer
IoWriteErrorLogEntry
IoOpenDeviceRegistryKey
ObfReferenceObject
ZwOpenSymbolicLinkObject
ZwQuerySymbolicLinkObject
RtlPrefixUnicodeString
RtlQueryRegistryValues
MmGetSystemRoutineAddress
RtlCompareUnicodeString
Sections
.text Size: 121KB - Virtual size: 120KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
EXTRA Size: 10KB - Virtual size: 9KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
CPATA Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 16KB - Virtual size: 15KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 6KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
PAGE Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
INIT Size: 16KB - Virtual size: 16KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 196B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.juno Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE