widevinecdm[.]dll

Sharing

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General

Target

widevinecdm.dll
Size

11.8MB
MD5

b4f789693a8a9f457b03ce0402103fa8
SHA1

e900a0f60256fbfa17669e694678d1ebb4475c74
SHA256

1c8dfc8a470019423709550dad527f6a382262eb4ddf793d4b0d3fbe28db783c
SHA512

f8a40e278c31bc4f8d3391e4d9fff32e9a4fc535bfcf729320e6d60bea39cd377f0f3579066b5e1e4c1eb3bbbbec2f0cb6cd87fb1d82e842685b00990c3049eb
SSDEEP

196608:/P4/vkvbdjMq4ytbko4qIUcXkhrVp1HSTDsoTn90lcGeFaxJI3qLaLhFT7UA:/PcvyiXSWxRU/OpZXJFee3qGhFMA

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
widevinecdm.dll

Files

widevinecdm.dll
.dll windows x64

42c33d38978645f91996394298fd1cf3

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
IMAGE_FILE_DLL

Imports

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
CloseHandle
CompareStringW
CreateEventW
CreateFileW
CreateSemaphoreW
CreateThread
DeleteCriticalSection
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetEnvironmentStringsW
GetExitCodeThread
GetFileSizeEx
GetFileType
GetFinalPathNameByHandleW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLogicalDriveStringsW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemInfo
GetSystemTimeAsFileTime
GetThreadGroupAffinity
GetThreadId
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetVersionExW
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitOnceBeginInitialize
InitOnceComplete
InitOnceExecuteOnce
InitializeConditionVariable
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
InitializeSRWLock
InterlockedFlushSList
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
MultiByteToWideChar
OutputDebugStringA
OutputDebugStringW
QueryDosDeviceW
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ReleaseSRWLockShared
ReleaseSemaphore
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetCurrentDirectoryW
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableCS
SleepConditionVariableSRW
TerminateProcess
TerminateThread
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
TryEnterCriticalSection
UnhandledExceptionFilter
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile

advapi32

RegCloseKey
RegOpenKeyExW
RegQueryValueExW
SystemFunction036

winmm

timeBeginPeriod
timeEndPeriod
timeGetTime

user32

CharUpperW
EnumDisplayMonitors
GetMonitorInfoW

ole32

CoTaskMemFree

Exports

Exports

CreateCdmInstance
DeinitializeCdmModule
GetCdmVersion
GetHandleVerifier
InitializeCdmModule_4
VerifyCdmHost_0

Sections

.text
Size: 6.4MB - Virtual size: 6.4MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 5.3MB - Virtual size: 5.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 12KB - Virtual size: 12.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 67KB - Virtual size: 67KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 40B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rodata
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 305B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 148B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 15KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

42c33d38978645f91996394298fd1cf3

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

winmm

user32

ole32

Exports

Exports

Sections

.text Size: 6.4MB - Virtual size: 6.4MB

.rdata Size: 5.3MB - Virtual size: 5.3MB

.data Size: 12KB - Virtual size: 12.2MB

.pdata Size: 67KB - Virtual size: 67KB

.00cfg Size: 512B - Virtual size: 40B

.rodata Size: 2KB - Virtual size: 1KB

.tls Size: 512B - Virtual size: 305B

_RDATA Size: 512B - Virtual size: 148B

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 15KB - Virtual size: 14KB

.text
Size: 6.4MB - Virtual size: 6.4MB

.rdata
Size: 5.3MB - Virtual size: 5.3MB

.data
Size: 12KB - Virtual size: 12.2MB

.pdata
Size: 67KB - Virtual size: 67KB

.00cfg
Size: 512B - Virtual size: 40B

.rodata
Size: 2KB - Virtual size: 1KB

.tls
Size: 512B - Virtual size: 305B

_RDATA
Size: 512B - Virtual size: 148B

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 15KB - Virtual size: 14KB