ffmpeg[.]dll | Triage

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General

Target

ffmpeg.dll
Size

2.6MB
MD5

5f5abaee3925504ca6b1dcc358e639a9
SHA1

feca951b321e903254b6e0347d9f3e698471241d
SHA256

d12f0ce401dc6fcf5337f82b4cc7055d893f135ca5ed79978f1801fadaf0a39c
SHA512

5d3707f3c00a8b01ff29f3763817813170bf3b727960c5d5ea8a7e066d7eb80de2e947ae19b7d2de23d7594bb16ac0f2046ed6b1186cd239b239c0abaacbde92
SSDEEP

49152:seQ7nWBO4+L16gqkpkk4v3Hda7osRUAp3+UikWfqgjnP1Fy4Xoi:/LBOjMUq04b

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
ffmpeg.dll

Files

ffmpeg.dll
.dll windows:5 windows x64

b8f7d0e0f83de4cae7f7fece4a2f750e

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

Imports

kernel32

AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateEventW
CreateFileW
CreateThread
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleCP
GetConsoleMode
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_copy_props
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_strerror
avcodec_align_dimensions
avcodec_alloc_context3
avcodec_decode_video2
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: 2.1MB - Virtual size: 2.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 453KB - Virtual size: 453KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 16KB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 41KB - Virtual size: 40KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

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

.reloc
Size: 13KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

b8f7d0e0f83de4cae7f7fece4a2f750e

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

Exports

Exports

Sections

.text Size: 2.1MB - Virtual size: 2.1MB

.rdata Size: 453KB - Virtual size: 453KB

.data Size: 16KB - Virtual size: 1.1MB

.pdata Size: 41KB - Virtual size: 40KB

.00cfg Size: 512B - Virtual size: 16B

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

_RDATA Size: 512B - Virtual size: 148B

.reloc Size: 13KB - Virtual size: 13KB

.text
Size: 2.1MB - Virtual size: 2.1MB

.rdata
Size: 453KB - Virtual size: 453KB

.data
Size: 16KB - Virtual size: 1.1MB

.pdata
Size: 41KB - Virtual size: 40KB

.00cfg
Size: 512B - Virtual size: 16B

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

_RDATA
Size: 512B - Virtual size: 148B

.reloc
Size: 13KB - Virtual size: 13KB