winmm[.]dll | Triage

Sharing

Copy URL Twitter E-mail

General

Target

winmm.dll
Size

257KB
MD5

c5bf99bc699a12c89783ec83c42a36c7
SHA1

acd45b08796a4932ae7ad3989c571993ebcf0352
SHA256

54a6ece54641ee6e437caa351e493ddf4435f3e23e3d4ab4655c35f57b94fc59
SHA512

2d86cf49181d66e2747dd6f8ada8eb0646b4a9767d4dc2ad5dfeed5c9737543693855a43c6c4e19334bad6116157caa0344518d2ca803ec0882ea630d9d32ebf
SSDEEP

6144:mP+o6GaSAZcnPOyUL/dKdpCdkohObqf6nGTp/hy:U+o6GafeOyULdkoVZy

Score

1^/10

Malware Config

Signatures

Files

winmm.dll
.dll windows:6 windows x64 arch:x64

d35c16c95a55a75561ea1d764e139684

Code Sign

3f:3e:1f:61:f6:ef:5c:6c:cd:4a:23:d6:9a:ca:97:3d:ce:16:2c:51
Certificate

Issuer

CN=Ascertia Public CA 1,O=Ascertia,C=GB

Not Before

16/02/2021, 23:11

Not After

16/03/2021, 23:11

Subject

CN=OnlineFix,OU=OnlineFix,O=OnlineFix,L=OnlineFix,ST=OnlineFix,C=CA,1.2.840.113549.1.9.1=#0c166f6e6c696e65666978406f6e6c696e656669782e6d65

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

e6
Certificate

Issuer

CN=Ascertia Root CA 2,O=Ascertia,C=GB

Not Before

21/04/2009, 12:15

Not After

14/04/2028, 23:59

Subject

CN=Ascertia Public CA 1,O=Ascertia,C=GB

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/01/2021, 00:00

Not After

06/01/2031, 00:00

Subject

CN=DigiCert Timestamp 2021,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

07/01/2016, 12:00

Not After

07/01/2031, 12:00

Subject

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

71:25:bc:4a:5e:45:b3:90:07:31:d1:83:bd:88:ae:5f:dd:02:c3:ca:a5:78:f0:3e:be:49:f5:a7:10:c5:ec:52
Signer

Actual PE Digest

71:25:bc:4a:5e:45:b3:90:07:31:d1:83:bd:88:ae:5f:dd:02:c3:ca:a5:78:f0:3e:be:49:f5:a7:10:c5:ec:52

Digest Algorithm

sha256

PE Digest Matches

true

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

GetModuleFileNameW
GetSystemDirectoryW
GetLastError
LoadLibraryW
GetProcAddress
ExitProcess
SetEndOfFile
WriteConsoleW
MultiByteToWideChar
GetStringTypeW
WideCharToMultiByte
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
EncodePointer
DecodePointer
LCMapStringEx
GetCPInfo
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwindEx
RtlPcToFileHeader
RaiseException
InterlockedFlushSList
SetLastError
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
GetModuleHandleExW
FlushFileBuffers
WriteFile
GetConsoleOutputCP
GetConsoleMode
HeapFree
CloseHandle
GetFileSizeEx
SetFilePointerEx
GetStdHandle
GetFileType
HeapAlloc
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
ReadFile
HeapReAlloc
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetProcessHeap
SetStdHandle
ReadConsoleW
CreateFileW
HeapSize
RtlUnwind

user32

MessageBoxW

Exports

Exports

CloseDriver
DefDriverProc
DriverCallback
DrvGetModuleHandle
GetDriverModuleHandle
NotifyCallbackData
OnlineFix
OpenDriver
PlaySound
PlaySoundA
PlaySoundW
SendDriverMessage
WOW32DriverCallback
WOW32ResolveMultiMediaHandle
WOWAppExit
aux32Message
auxGetDevCapsA
auxGetDevCapsW
auxGetNumDevs
auxGetVolume
auxOutMessage
auxSetVolume
joy32Message
joyConfigChanged
joyGetDevCapsA
joyGetDevCapsW
joyGetNumDevs
joyGetPos
joyGetPosEx
joyGetThreshold
joyReleaseCapture
joySetCapture
joySetThreshold
mci32Message
mciDriverNotify
mciDriverYield
mciExecute
mciFreeCommandResource
mciGetCreatorTask
mciGetDeviceIDA
mciGetDeviceIDFromElementIDA
mciGetDeviceIDFromElementIDW
mciGetDeviceIDW
mciGetDriverData
mciGetErrorStringA
mciGetErrorStringW
mciGetYieldProc
mciLoadCommandResource
mciSendCommandA
mciSendCommandW
mciSendStringA
mciSendStringW
mciSetDriverData
mciSetYieldProc
mid32Message
midiConnect
midiDisconnect
midiInAddBuffer
midiInClose
midiInGetDevCapsA
midiInGetDevCapsW
midiInGetErrorTextA
midiInGetErrorTextW
midiInGetID
midiInGetNumDevs
midiInMessage
midiInOpen
midiInPrepareHeader
midiInReset
midiInStart
midiInStop
midiInUnprepareHeader
midiOutCacheDrumPatches
midiOutCachePatches
midiOutClose
midiOutGetDevCapsA
midiOutGetDevCapsW
midiOutGetErrorTextA
midiOutGetErrorTextW
midiOutGetID
midiOutGetNumDevs
midiOutGetVolume
midiOutLongMsg
midiOutMessage
midiOutOpen
midiOutPrepareHeader
midiOutReset
midiOutSetVolume
midiOutShortMsg
midiOutUnprepareHeader
midiStreamClose
midiStreamOpen
midiStreamOut
midiStreamPause
midiStreamPosition
midiStreamProperty
midiStreamRestart
midiStreamStop
mixerClose
mixerGetControlDetailsA
mixerGetControlDetailsW
mixerGetDevCapsA
mixerGetDevCapsW
mixerGetID
mixerGetLineControlsA
mixerGetLineControlsW
mixerGetLineInfoA
mixerGetLineInfoW
mixerGetNumDevs
mixerMessage
mixerOpen
mixerSetControlDetails
mmDrvInstall
mmGetCurrentTask
mmTaskBlock
mmTaskCreate
mmTaskSignal
mmTaskYield
mmioAdvance
mmioAscend
mmioClose
mmioCreateChunk
mmioDescend
mmioFlush
mmioGetInfo
mmioInstallIOProcA
mmioInstallIOProcW
mmioOpenA
mmioOpenW
mmioRead
mmioRenameA
mmioRenameW
mmioSeek
mmioSendMessage
mmioSetBuffer
mmioSetInfo
mmioStringToFOURCCA
mmioStringToFOURCCW
mmioWrite
mmsystemGetVersion
mod32Message
mxd32Message
sndPlaySoundA
sndPlaySoundW
tid32Message
timeBeginPeriod
timeEndPeriod
timeGetDevCaps
timeGetSystemTime
timeGetTime
timeKillEvent
timeSetEvent
waveInAddBuffer
waveInClose
waveInGetDevCapsA
waveInGetDevCapsW
waveInGetErrorTextA
waveInGetErrorTextW
waveInGetID
waveInGetNumDevs
waveInGetPosition
waveInMessage
waveInOpen
waveInPrepareHeader
waveInReset
waveInStart
waveInStop
waveInUnprepareHeader
waveOutBreakLoop
waveOutClose
waveOutGetDevCapsA
waveOutGetDevCapsW
waveOutGetErrorTextA
waveOutGetErrorTextW
waveOutGetID
waveOutGetNumDevs
waveOutGetPitch
waveOutGetPlaybackRate
waveOutGetPosition
waveOutGetVolume
waveOutMessage
waveOutOpen
waveOutPause
waveOutPrepareHeader
waveOutReset
waveOutRestart
waveOutSetPitch
waveOutSetPlaybackRate
waveOutSetVolume
waveOutUnprepareHeader
waveOutWrite
wid32Message
wod32Message

Sections

.text
Size: 147KB - Virtual size: 147KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 81KB - Virtual size: 81KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1024B - Virtual size: 632B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

d35c16c95a55a75561ea1d764e139684

Code Sign

3f:3e:1f:61:f6:ef:5c:6c:cd:4a:23:d6:9a:ca:97:3d:ce:16:2c:51Certificate

Extended Key Usages

Key Usages

e6Certificate

Key Usages

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:ddCertificate

Extended Key Usages

Key Usages

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15Certificate

Extended Key Usages

Key Usages

71:25:bc:4a:5e:45:b3:90:07:31:d1:83:bd:88:ae:5f:dd:02:c3:ca:a5:78:f0:3e:be:49:f5:a7:10:c5:ec:52Signer

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

Exports

Exports

Sections

.text Size: 147KB - Virtual size: 147KB

.rdata Size: 81KB - Virtual size: 81KB

.data Size: 5KB - Virtual size: 11KB

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

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 1024B - Virtual size: 632B

.reloc Size: 3KB - Virtual size: 2KB

3f:3e:1f:61:f6:ef:5c:6c:cd:4a:23:d6:9a:ca:97:3d:ce:16:2c:51
Certificate

e6
Certificate

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

71:25:bc:4a:5e:45:b3:90:07:31:d1:83:bd:88:ae:5f:dd:02:c3:ca:a5:78:f0:3e:be:49:f5:a7:10:c5:ec:52
Signer

.text
Size: 147KB - Virtual size: 147KB

.rdata
Size: 81KB - Virtual size: 81KB

.data
Size: 5KB - Virtual size: 11KB

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

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 1024B - Virtual size: 632B

.reloc
Size: 3KB - Virtual size: 2KB