ffmpeg[.]dll | Triage

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General

Target

ffmpeg.dll
Size

2.3MB
MD5

57d17581e4164b733d277152fab0c92f
SHA1

cb26b597d9b1239460cd9700dfa6f0b8fb1252e2
SHA256

9c19d766e04af4cfba03ed4a88155422e9f5df88d9f1fb4f5c4a667a971deacf
SHA512

fd1baf66f93ed8e1ef1d0ef7386a9495c273c51a6c94f216f16ad504f9be16876064b3bae648b6d04f8831e2008c93ec19905e4e97a44bcd1d7b262f8aba172a
SSDEEP

49152:UYPcnq1a6HexEjitbKQLaalu1NLxDzWleXv1z9KAgSJyT/QVqU5rkJbdj02bSZg+:1cEal0Q+6u1NNBgkyT/QVqU5rkJGnF

Score

N/A

Malware Config

Signatures

Files

ffmpeg.dll
.dll windows x64

14338d2168d869b1b53d66354179e8c5

Code Sign

33:00:00:02:cc:8e:b5:96:a6:bd:d1:c9:4e:00:00:00:00:02:cc
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

12-05-2022 20:46

Not After

11-05-2023 20:46

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08-07-2011 20:59

Not After

08-07-2026 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

f7:4c:86:45:fb:d7:ad:72:dc:33:1e:1c:37:91:7b:62:c4:d2:0a:a6:56:11:3c:ab:8f:cd:95:03:66:f6:8b:39
Signer

Actual PE Digest

f7:4c:86:45:fb:d7:ad:72:dc:33:1e:1c:37:91:7b:62:c4:d2:0a:a6:56:11:3c:ab:8f:cd:95:03:66:f6:8b:39

Digest Algorithm

sha256

PE Digest Matches

false

Signature Validations

Trusted

false

Verification

Signing Certificate

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

15-12-2022 13:59
Valid: false

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

Imports

kernel32

AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateEventW
CreateFileW
CreateThread
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetDateFormatW
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessAffinityMask
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
HeapAlloc
HeapFree
HeapQueryInformation
HeapReAlloc
HeapSize
InitOnceBeginInitialize
InitOnceComplete
InitializeConditionVariable
InitializeCriticalSectionAndSpinCount
InitializeSListHead
InitializeSRWLock
InterlockedFlushSList
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ResetEvent
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile

Exports

Exports

av_buffer_create
av_buffer_get_opaque
av_dict_count
av_dict_free
av_dict_get
av_dict_set
av_force_cpu_flags
av_frame_alloc
av_frame_clone
av_frame_free
av_frame_unref
av_free
av_get_bytes_per_sample
av_get_cpu_flags
av_image_check_size
av_init_packet
av_log_set_level
av_malloc
av_max_alloc
av_new_packet
av_packet_alloc
av_packet_copy_props
av_packet_free
av_packet_get_side_data
av_packet_unref
av_rdft_calc
av_rdft_end
av_rdft_init
av_read_frame
av_rescale_q
av_samples_get_buffer_size
av_seek_frame
av_stream_get_first_dts
av_stream_get_side_data
av_strerror
avcodec_align_dimensions
avcodec_alloc_context3
avcodec_descriptor_get
avcodec_descriptor_next
avcodec_find_decoder
avcodec_flush_buffers
avcodec_free_context
avcodec_get_name
avcodec_open2
avcodec_parameters_to_context
avcodec_receive_frame
avcodec_send_packet
avformat_alloc_context
avformat_close_input
avformat_find_stream_info
avformat_free_context
avformat_open_input
avio_alloc_context
avio_close

Sections

.text
Size: 1.9MB - Virtual size: 1.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 376KB - Virtual size: 376KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 8KB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 40KB - Virtual size: 39KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 10KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 92B

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.voltbl
Size: 512B - Virtual size: 56B

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 11KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

14338d2168d869b1b53d66354179e8c5

Code Sign

33:00:00:02:cc:8e:b5:96:a6:bd:d1:c9:4e:00:00:00:00:02:ccCertificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

f7:4c:86:45:fb:d7:ad:72:dc:33:1e:1c:37:91:7b:62:c4:d2:0a:a6:56:11:3c:ab:8f:cd:95:03:66:f6:8b:39Signer

Signature Validations

Verification

15-12-2022 13:59 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

Exports

Exports

Sections

.text Size: 1.9MB - Virtual size: 1.9MB

.rdata Size: 376KB - Virtual size: 376KB

.data Size: 8KB - Virtual size: 1.1MB

.pdata Size: 40KB - Virtual size: 39KB

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

.gxfg Size: 10KB - Virtual size: 10KB

.retplne Size: 512B - Virtual size: 92B

.tls Size: 512B - Virtual size: 9B

.voltbl Size: 512B - Virtual size: 56B

_RDATA Size: 512B - Virtual size: 244B

.reloc Size: 11KB - Virtual size: 11KB

33:00:00:02:cc:8e:b5:96:a6:bd:d1:c9:4e:00:00:00:00:02:cc
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

f7:4c:86:45:fb:d7:ad:72:dc:33:1e:1c:37:91:7b:62:c4:d2:0a:a6:56:11:3c:ab:8f:cd:95:03:66:f6:8b:39
Signer

15-12-2022 13:59
Valid: false

.text
Size: 1.9MB - Virtual size: 1.9MB

.rdata
Size: 376KB - Virtual size: 376KB

.data
Size: 8KB - Virtual size: 1.1MB

.pdata
Size: 40KB - Virtual size: 39KB

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

.gxfg
Size: 10KB - Virtual size: 10KB

.retplne
Size: 512B - Virtual size: 92B

.tls
Size: 512B - Virtual size: 9B

.voltbl
Size: 512B - Virtual size: 56B

_RDATA
Size: 512B - Virtual size: 244B

.reloc
Size: 11KB - Virtual size: 11KB