fontdrvhost[.]exe

Sharing

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General

Target

fontdrvhost.exe
Size

832KB
MD5

e33a2a9d7b11c8a3e3fc9ffc4c884ce0
SHA1

23bc86a2fdb8805c83aec710770bfed6e7b102a2
SHA256

42415a9f5bcc261abcd096783353af335c242e19c8b14c4df36e1845c39d35cf
SHA512

37d3a27e4e730a1379a470e362e7c6ad5d467bb77c39999b34cb913c204817e329889688dd0e8040674134c0785f1d11a9a2dc540b74aeaf9a9b33abce4bfbce
SSDEEP

12288:SNZq33jH+5EAQzuSdenGOR+5tB/qJqQUQvM4qSSkbaNmnnMO0FnefAUxlRf:SG48uSdNo+zkY/Q0aC1FnGAcl

Score

1^/10

Malware Config

Signatures

Files

fontdrvhost.exe
.exe windows x64

c84cda6302cd382ca12c172e8dcb0f30

Code Sign

33:00:00:03:8b:79:45:c1:8b:0e:b6:87:ec:00:00:00:00:03:8b
Certificate

Issuer

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

05/05/2022, 19:23

Not After

04/05/2023, 19:23

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:07:76:56:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

19/10/2011, 18:41

Not After

19/10/2026, 18:51

Subject

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

4d:ff:93:7a:b8:d8:83:e8:b3:74:fa:9a:72:d0:97:49:e5:0f:ae:76:19:61:c0:31:11:94:31:21:49:7f:d5:9e
Signer

Actual PE Digest

4d:ff:93:7a:b8:d8:83:e8:b3:74:fa:9a:72:d0:97:49:e5:0f:ae:76:19:61:c0:31:11:94:31:21:49:7f:d5:9e

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

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

07/02/2023, 20:44
Valid: false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

msvcp_win

?_Xlength_error@std@@YAXPEBD@Z

api-ms-win-crt-runtime-l1-1-0

_initterm_e
_initterm
_register_thread_local_exe_atexit_callback
_c_exit

api-ms-win-crt-private-l1-1-0

_o__callnewh
_o__cexit
_o__configthreadlocale
_o__configure_narrow_argv
_o__crt_atexit
_o__errno
_o__exit
_o__get_initial_narrow_environment
_o__initialize_narrow_environment
_o__initialize_onexit_table
_o__invalid_parameter_noinfo
_o__invalid_parameter_noinfo_noreturn
_o__itow
_o__lfind
_o__purecall
_o__register_onexit_function
_o__seh_filter_exe
_o__set_app_type
_o__set_fmode
_o__set_new_mode
_o__stricmp
memmove
_o__strlwr
_o__wcsicmp
_o__wcsnicmp
_o_atoi
_o_atol
_o_bsearch
_o_exit
_o_free
_o_isdigit
_o_islower
_o_iswdigit
_o_isxdigit
_o_malloc
_o_qsort
_o_rand
_o_rand_s
_o_realloc
_o_sqrt
_o_strtol
_o_terminate
__current_exception
__current_exception_context
_o___stdio_common_vswprintf
_o___stdio_common_vsprintf
_o___stdio_common_vsnprintf_s
_o___stdio_common_vfprintf
_o___std_exception_destroy
_o___std_exception_copy
_o___p__commode
_o___p___argv
_o___p___argc
_o___acrt_iob_func
__std_terminate
__C_specific_handler
__CxxFrameHandler4
strchr
wcschr
wcsrchr
strstr
__CxxFrameHandler3
_CxxThrowException
memcmp
memcpy

api-ms-win-crt-string-l1-1-0

strnlen
strncmp
strcmp
memset
wcsncmp

kernel32

RaiseException
GetACP
GetOEMCP
MapViewOfFile
CreateFileMappingW
TlsGetValue
SetFileInformationByHandle
GetFileInformationByHandle
MultiByteToWideChar
UnmapViewOfFile
RtlRaiseException
MulDiv
GlobalFree
GlobalAlloc
InitializeSListHead
GetSystemTimeAsFileTime
QueryPerformanceCounter
IsProcessorFeaturePresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
IsDebuggerPresent
DebugBreak
GetModuleHandleW
GetProcessHeap
GetCurrentProcessId
ExitProcess
DeleteCriticalSection
AcquireSRWLockShared
CreateMutexExW
HeapAlloc
CreateThread
CreateThreadpoolTimer
ReleaseSRWLockShared
SetThreadpoolTimer
CloseHandle
OpenSemaphoreW
TlsAlloc
WaitForSingleObjectEx
AcquireSRWLockExclusive
CloseThreadpoolTimer
OutputDebugStringW
ReleaseSRWLockExclusive
GetLastError
FormatMessageW
SetProcessMitigationPolicy
ReleaseMutex
GetCurrentThreadId
WaitForSingleObject
WaitForThreadpoolTimerCallbacks
InitializeCriticalSectionEx
GetEnvironmentVariableW
InitializeCriticalSection
LeaveCriticalSection
SetProcessShutdownParameters
WaitForMultipleObjects
TerminateProcess
GetModuleHandleExW
ReleaseSemaphore
GetCurrentProcess
EnterCriticalSection
SetLastError
HeapFree
CreateSemaphoreExW
TlsSetValue
GetModuleFileNameA
GetProcAddress
WideCharToMultiByte

ntdll

RtlMultiByteToUnicodeN
RtlUnicodeToMultiByteN
RtlAllocateHeap

win32u

NtGdiExtEscape

Sections

.text
Size: 644KB - Virtual size: 642KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 104KB - Virtual size: 102KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 24KB - Virtual size: 34KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 28KB - Virtual size: 27KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 4KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 8KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

c84cda6302cd382ca12c172e8dcb0f30

Code Sign

33:00:00:03:8b:79:45:c1:8b:0e:b6:87:ec:00:00:00:00:03:8bCertificate

Extended Key Usages

61:07:76:56:00:00:00:00:00:08Certificate

Key Usages

4d:ff:93:7a:b8:d8:83:e8:b3:74:fa:9a:72:d0:97:49:e5:0f:ae:76:19:61:c0:31:11:94:31:21:49:7f:d5:9eSigner

Signature Validations

Verification

07/02/2023, 20:44 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

msvcp_win

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-private-l1-1-0

api-ms-win-crt-string-l1-1-0

kernel32

ntdll

win32u

Sections

.text Size: 644KB - Virtual size: 642KB

.rdata Size: 104KB - Virtual size: 102KB

.data Size: 24KB - Virtual size: 34KB

.pdata Size: 28KB - Virtual size: 27KB

.rsrc Size: 4KB - Virtual size: 1KB

.reloc Size: 8KB - Virtual size: 4KB

33:00:00:03:8b:79:45:c1:8b:0e:b6:87:ec:00:00:00:00:03:8b
Certificate

61:07:76:56:00:00:00:00:00:08
Certificate

4d:ff:93:7a:b8:d8:83:e8:b3:74:fa:9a:72:d0:97:49:e5:0f:ae:76:19:61:c0:31:11:94:31:21:49:7f:d5:9e
Signer

07/02/2023, 20:44
Valid: false

.text
Size: 644KB - Virtual size: 642KB

.rdata
Size: 104KB - Virtual size: 102KB

.data
Size: 24KB - Virtual size: 34KB

.pdata
Size: 28KB - Virtual size: 27KB

.rsrc
Size: 4KB - Virtual size: 1KB

.reloc
Size: 8KB - Virtual size: 4KB