wmfclearkey[.]dll | Triage™

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General

Target
wmfclearkey.dll
Size 870KB
Sample260727-v21lrsytd1
SHA256 79c2bd54ba4aeee47f1bc921720afb69cf99eb69f7629822e3d011e7a689156f
MD5 8a78737ebd300af998720a2cbdb3cb40
SHA1 b65299dac770275e7f32d4545f5994e0ebac70fa
SHA512 710739e65b6b35c219cbd2dced3fa7c1e45f50c788fdd45aaf2d7b34000c888368a7bebcd9429dc5b4bbcdf33f3035bae6cc24b9c1afc10db413feb26633d205
SSDEEP 12288:queIGOiM0zVD5N5bR+2GPg+yXN+8XQQnq8qvol:qz9zRvW2GDyXRXQQnq8
TLSH
T1B2159C53B695A27ED14BD074834B8ABEB531B0CA4622BCBB11E4D7343E96F950F1CB18
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
wmfclearkey.dll

File Explorer

wmfclearkey.dll

.dll 870KB

wmfclearkey.dll

IMPHASH 60b399fb592cebf52807ed01b20d5a37
SHA256 79c2bd54ba4aeee47f1bc921720afb69cf99eb69f7629822e3d011e7a689156f
MD5 8a78737ebd300af998720a2cbdb3cb40
SHA1 b65299dac770275e7f32d4545f5994e0ebac70fa
SHA512 710739e65b6b35c219cbd2dced3fa7c1e45f50c788fdd45aaf2d7b34000c888368a7bebcd9429dc5b4bbcdf33f3035bae6cc24b9c1afc10db413feb26633d205
SSDEEP 12288:queIGOiM0zVD5N5bR+2GPg+yXN+8XQQnq8qvol:qz9zRvW2GDyXRXQQnq8
TLSH
T1B2159C53B695A27ED14BD074834B8ABEB531B0CA4622BCBB11E4D7343E96F950F1CB18
MD5 SHA1 SHA512 SSDEEP TLSH

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

4928

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DEBUG_STRIPPED IMAGE_FILE_DLL

PDB paths

d:\agent\_work\7\s\out\Release\wmfclearkey.pdb

accessiblemarshal

AccessibleMarshal_Configure

api-ms-win-core-synch-l1-2-0

WaitOnAddress WakeByAddressAll WakeByAddressSingle

bcryptprimitives

ProcessPrng

advapi32

SystemFunction036

bcrypt

BCryptGenRandom

comctl32

InitCommonControlsEx

gdi32

GetDeviceCaps GetStockObject

kernel32

AddVectoredExceptionHandler CancelIo CloseHandle CompareStringOrdinal CopyFileExW CreateDirectoryW CreateEventW CreateFileMappingA CreateFileW CreateHardLinkW CreatePipe CreateProcessW CreateSymbolicLinkW CreateThread CreateToolhelp32Snapshot CreateWaitableTimerExW DeleteCriticalSection DeleteFileW DeleteProcThreadAttributeList DeviceIoControl DuplicateHandle EnterCriticalSection ExitProcess FindClose FindFirstFileExW FindNextFileW FlushFileBuffers FormatMessageW FreeEnvironmentStringsW GetCommandLineW GetConsoleMode GetConsoleOutputCP GetCurrentDirectoryW GetCurrentProcess GetCurrentProcessId GetCurrentThread GetCurrentThreadId GetEnvironmentStringsW GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileInformationByHandle GetFileInformationByHandleEx GetFileSizeEx GetFileType GetFinalPathNameByHandleW GetFullPathNameW GetLastError GetModuleFileNameW GetModuleHandleA GetModuleHandleW GetOverlappedResult GetProcAddress GetProcessHeap GetProcessId GetStdHandle GetSystemDirectoryW GetSystemInfo GetSystemTimePreciseAsFileTime GetTempPathW GetWindowsDirectoryW HeapAlloc HeapFree HeapReAlloc InitOnceBeginInitialize InitOnceComplete InitializeCriticalSection InitializeProcThreadAttributeList LeaveCriticalSection LockFileEx MapViewOfFile Module32FirstW Module32NextW MoveFileExW MultiByteToWideChar QueryPerformanceCounter QueryPerformanceFrequency RaiseException ReadConsoleW ReadFile ReadFileEx RemoveDirectoryW RtlCaptureContext RtlLookupFunctionEntry RtlUnwindEx RtlVirtualUnwind SetCurrentDirectoryW SetEnvironmentVariableW SetFileAttributesW SetFileInformationByHandle SetFilePointerEx SetFileTime SetHandleInformation SetLastError SetThreadStackGuarantee SetWaitableTimer Sleep SleepEx SwitchToThread TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue UnlockFile UnmapViewOfFile UpdateProcThreadAttribute VirtualProtect VirtualQuery WaitForMultipleObjects WaitForSingleObject WideCharToMultiByte WriteConsoleW WriteFileEx lstrlenW

msvcrt

__iob_func _amsg_exit _initterm _lock _unlock abort calloc free fwrite memcmp memcpy memmove memset realloc strlen strncmp vfprintf

ntdll

NtCreateFile NtCreateNamedPipeFile NtOpenFile NtReadFile NtWriteFile RtlNtStatusToDosError

ole32

CoCreateGuid CoInitializeEx CoUninitialize

shell32

SHGetFolderPathW

shlwapi

PathFileExistsW

user32

GetDesktopWindow GetSystemMetrics IsWindowVisible

userenv

GetUserProfileDirectoryW

version

GetFileVersionInfoSizeW

ws2_32

GetHostNameW WSACleanup WSADuplicateSocketW WSAGetLastError WSARecv WSASend WSASocketW WSAStartup accept bind closesocket connect freeaddrinfo getaddrinfo getpeername getsockname getsockopt ioctlsocket listen recv recvfrom select send sendto setsockopt shutdown

Name

.text

Size

653KB

Virtual Size

653KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

134KB

Virtual Size

134KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.pdata

Size

21KB

Virtual Size

20KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.xdata

Size

41KB

Virtual Size

41KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.bss

Size

Virtual Size

448B

Characteristics

IMAGE_SCN_CNT_UNINITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.edata

Size

512B

Virtual Size

169B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.idata

Size

8KB

Virtual Size

7KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.CRT

Size

512B

Virtual Size

96B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.tls

Size

512B

Virtual Size

32B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.reloc

Size

3KB

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

.rsrc

Size

1KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.debug

Size

512B

Virtual Size

99B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.lcfg

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

wmfclearkey.dll

accessiblemarshal

api-ms-win-core-synch-l1-2-0

bcryptprimitives

advapi32

bcrypt

comctl32

gdi32

kernel32

msvcrt

ntdll

ole32

shell32

shlwapi

user32

userenv

version

ws2_32

generic