DWrite.pdb
Static task
static1
Behavioral task
behavioral1
Sample
DWrite.dll
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
DWrite.dll
Resource
win10v2004-20240426-en
General
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Target
DWrite.dll
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Size
1.5MB
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MD5
df3b0cdb3a53067b315a836725c3acb5
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SHA1
8229b1a0ec09746dfb3d0fb7781e4359afb8e19b
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SHA256
46b47a1b45d6097b4476bfff35493c02a36693cc2a36f7c5b587073ef635849c
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SHA512
8270a81d3855bf964a3019833ea973b201e47cd7df9a01b93afbfe78fa4e47d7c2f2c8e455f2943de46cb2f21d108beafa64ce25de498e6d6b00b9596aef87a7
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SSDEEP
24576:qVfYYAfsNSstXItymL1M9pzgTn6M1WuCB4U7m9JbOCx5w6f6A5ahycYh:wNxOTn6M8z4pJf9ahycE
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource DWrite.dll
Files
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DWrite.dll.dll windows:6 windows x86 arch:x86
beafc7691f4f21093c2dcaa3a84b09f8
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
PDB Paths
Imports
msvcrt
__dllonexit
_unlock
_lock
_except_handler4_common
_onexit
_initterm
memcpy
abort
_ultow_s
_ftol2
_libm_sse2_exp_precise
??1type_info@@UAE@XZ
__CxxFrameHandler3
_CxxThrowException
_callnewh
memmove
wcsrchr
_wcsicmp
sprintf_s
ceil
wcschr
iswalpha
wcsnlen
calloc
realloc
_purecall
??0exception@@QAE@XZ
memmove_s
malloc
??0exception@@QAE@ABQBD@Z
??1exception@@UAE@XZ
?what@exception@@UBEPBDXZ
??0exception@@QAE@ABV0@@Z
memcpy_s
memcmp
floor
_libm_sse2_sqrt_precise
free
_libm_sse2_pow_precise
_libm_sse2_log_precise
_amsg_exit
?terminate@@YAXXZ
_XcptFilter
memset
ntdll
WinSqmCommonDatapointSetDWORD
WinSqmIsOptedIn
RtlInitUnicodeString
NtClose
NtSetInformationThread
NtQueryInformationThread
AlpcGetMessageAttribute
AlpcInitializeMessageAttribute
NtAlpcSendWaitReceivePort
NtAlpcConnectPort
RtlCaptureStackBackTrace
WinSqmAddToStreamEx
api-ms-win-core-libraryloader-l1-2-0
GetModuleHandleW
FindResourceExW
SizeofResource
LoadResource
LockResource
GetProcAddress
DisableThreadLibraryCalls
api-ms-win-core-synch-l1-2-0
DeleteCriticalSection
Sleep
EnterCriticalSection
ResetEvent
SetEvent
LeaveCriticalSection
CreateEventW
InitializeCriticalSection
WaitForMultipleObjectsEx
WaitForSingleObjectEx
api-ms-win-core-profile-l1-1-0
QueryPerformanceCounter
api-ms-win-core-processthreads-l1-1-2
GetCurrentProcessId
GetCurrentThreadId
GetCurrentThread
GetCurrentProcess
TerminateProcess
api-ms-win-core-sysinfo-l1-2-1
GetTickCount
GetSystemTimeAsFileTime
GetSystemInfo
GetSystemWindowsDirectoryW
api-ms-win-core-errorhandling-l1-1-1
SetUnhandledExceptionFilter
RaiseException
GetLastError
UnhandledExceptionFilter
SetLastError
SetErrorMode
api-ms-win-core-registry-l1-1-0
RegOpenKeyExW
RegQueryValueExW
RegGetValueW
RegNotifyChangeKeyValue
RegEnumValueW
RegCloseKey
api-ms-win-core-localization-l1-2-1
LCMapStringW
LocaleNameToLCID
GetSystemDefaultLCID
GetACP
GetUserDefaultLCID
GetLocaleInfoEx
api-ms-win-core-string-l1-1-0
CompareStringOrdinal
MultiByteToWideChar
WideCharToMultiByte
CompareStringW
api-ms-win-core-file-l1-2-1
CreateFileW
ReadFile
GetFileInformationByHandle
FindFirstFileW
FindClose
FindCloseChangeNotification
FindNextChangeNotification
FindFirstChangeNotificationW
api-ms-win-core-handle-l1-1-0
CloseHandle
api-ms-win-core-memory-l1-1-2
VirtualQuery
VirtualFree
UnmapViewOfFile
VirtualAlloc
CreateFileMappingW
MapViewOfFileEx
api-ms-win-core-debug-l1-1-1
OutputDebugStringA
api-ms-win-core-localization-obsolete-l1-2-0
LCIDToLocaleName
api-ms-win-eventing-provider-l1-1-0
EventRegister
EventWrite
EventEnabled
EventUnregister
api-ms-win-security-base-l1-2-0
CreateWellKnownSid
api-ms-win-core-delayload-l1-1-1
ResolveDelayLoadedAPI
DelayLoadFailureHook
Exports
Exports
DWriteCreateFactory
Sections
.text Size: 1.2MB - Virtual size: 1.2MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.didat Size: 512B - Virtual size: 196B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 201KB - Virtual size: 200KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 32KB - Virtual size: 32KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ