fontdrvhost[.]exe

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General

Target

fontdrvhost.exe
Size

660KB
MD5

8d0da0c5dcf1a14f9d65f5c0bea53f3d
SHA1

43c9544cb49f5c356cc26ac999b330db618a29de
SHA256

8e9b0bc80ceb39aca1d12bb1e3bb91d3a4f2fa28aab18b179d884087a806aa5f
SHA512

696cc6bfd58da109baa2b8c05b2d10fb2ab9bbbe95abdd12bb5c002c5ab5bc9bbd83e1d25da4e35779085671ff00fbf888683dc5ae8dd7e27fcf2b2c9f747e31
SSDEEP

12288:CA5oLIK090fMT7+vccrGreU6IZnoEHJI0C1y/S6:CA5oLImK7erGrGIZnoEZC1+

Score

1^/10

Malware Config

Signatures

Files

fontdrvhost.exe
.exe windows x86

01c23a3c5a28dc50d51f7bcee9861a47

Code Sign

33:00:00:03:3c:89:c6:6a:7b:45:bb:1f:bd:00:00:00:00:03:3c
Certificate

Issuer

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

Not Before

02-09-2021 18:23

Not After

01-09-2022 18:23

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

f1:d4:80:e0:72:ef:a5:08:b0:27:1c:95:ad:9a:81:64:44:d9:77:29:50:04:0a:89:9a:e6:2e:6e:84:47:43:eb
Signer

Actual PE Digest

f1:d4:80:e0:72:ef:a5:08:b0:27:1c:95:ad:9a:81:64:44:d9:77:29:50:04:0a:89:9a:e6:2e:6e:84:47:43:eb

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

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_32BIT_MACHINE

Imports

msvcp_win

?_Xlength_error@std@@YAXPBD@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___stdio_common_vsprintf
_o___stdio_common_vswprintf
_o__callnewh
_o__cexit
_o__configthreadlocale
_o__configure_narrow_argv
_o__controlfp_s
_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
memmove
_o__set_new_mode
_o___stdio_common_vsnprintf_s
_o__stricmp
_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_strtol
_o_terminate
_except_handler4_common
_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
strchr
wcschr
wcsrchr
strstr
__CxxFrameHandler3
__std_terminate
_CxxThrowException
memcmp
memcpy

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

wcsncmp
strncmp
memset
strnlen

kernel32

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

ntdll

RtlMultiByteToUnicodeN
RtlRaiseException
RtlUnicodeToMultiByteN
RtlSetThreadWorkOnBehalfTicket
RtlAllocateHeap
RtlClearThreadWorkOnBehalfTicket

win32u

NtGdiExtEscape

Sections

.text
Size: 605KB - Virtual size: 604KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 11KB - Virtual size: 27KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 22KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

01c23a3c5a28dc50d51f7bcee9861a47

Code Sign

33:00:00:03:3c:89:c6:6a:7b:45:bb:1f:bd:00:00:00:00:03:3cCertificate

Extended Key Usages

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

Key Usages

f1:d4:80:e0:72:ef:a5:08:b0:27:1c:95:ad:9a:81:64:44:d9:77:29:50:04:0a:89:9a:e6:2e:6e:84:47:43:ebSigner

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: 605KB - Virtual size: 604KB

.data Size: 11KB - Virtual size: 27KB

.idata Size: 4KB - Virtual size: 4KB

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

.reloc Size: 22KB - Virtual size: 21KB

33:00:00:03:3c:89:c6:6a:7b:45:bb:1f:bd:00:00:00:00:03:3c
Certificate

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

f1:d4:80:e0:72:ef:a5:08:b0:27:1c:95:ad:9a:81:64:44:d9:77:29:50:04:0a:89:9a:e6:2e:6e:84:47:43:eb
Signer

.text
Size: 605KB - Virtual size: 604KB

.data
Size: 11KB - Virtual size: 27KB

.idata
Size: 4KB - Virtual size: 4KB

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

.reloc
Size: 22KB - Virtual size: 21KB