dxtmsft[.]dll | Triage

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General

Target

dxtmsft.dll
Size

479KB
MD5

ca8dcf5822efdbaaf26b39c5f3bb4cb2
SHA1

9d7cf4157b97c29242d63e78af21f468c4ee5213
SHA256

ef7a81cb26e5b9ae4a59da35730c4e0b9c384bf2c69aa002b5b950c15dc05798
SHA512

4eb41897b4e5a59c42fcf32f816582702e6fda4e58ec3fec781c4674816b54200e815f754b779f5c2cacc0901109525af071cdf49d0fffe1cf18251358c53a19
SSDEEP

6144:dkklqjbxBy5s8nS89x/V2X6r4jpXIJMnIgIVS4sS92Okb+kIt3DtXWtR4irn2eBU:3l4qxP8jpAVSmgOAE

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
dxtmsft.dll

Files

dxtmsft.dll
.dll regsvr32 windows:6 windows x64 arch:x64

df243ab4b4cd99501c1b90f0c277c580

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

PDB Paths

dxtmsft.pdb

Imports

msvcrt

memset
powf
sin
sinf
sqrt
_purecall
memcpy
__C_specific_handler
_initterm
_amsg_exit
_XcptFilter
malloc
memcmp
cos
__CxxFrameHandler3
free
memcpy_s
_resetstkoflw
_wcsicmp
_vsnwprintf
srand
time
rand
sqrtf

atl

ord16
ord21
ord15
ord23
ord30
ord32

kernel32

SetUnhandledExceptionFilter
UnhandledExceptionFilter
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
GetTickCount
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
Sleep
HeapFree
DisableThreadLibraryCalls
HeapAlloc
HeapSetInformation
GetProcessHeap
CloseHandle
GetCurrentThreadId
VirtualProtect
GetSystemInfo
CreateEventW
VirtualAlloc
GetVersionExW
WideCharToMultiByte
GetCurrentProcess
VirtualQuery
DeleteCriticalSection
EnterCriticalSection
IsBadWritePtr
LeaveCriticalSection
IsBadCodePtr
InitializeCriticalSection
IsBadReadPtr
TerminateProcess

user32

GetSysColor
CopyRect
OffsetRect
IntersectRect

ole32

CoCreateFreeThreadedMarshaler
CoCreateInstance

oleaut32

VariantClear
VariantInit
SysFreeString
SysAllocString
SysStringLen
VariantCopy
SysAllocStringLen
VariantChangeType
SetErrorInfo
LoadRegTypeLi
SafeArrayCreate
SafeArrayAccessData
SafeArrayUnaccessData

gdi32

DeleteDC
CreateCompatibleDC
CreateCompatibleBitmap
SelectObject
BitBlt
GetDIBits
SetICMMode
CreateColorSpaceW
SetColorSpace
SetDIBitsToDevice
DeleteObject
DeleteColorSpace

dxtrans

?DXOverArray@@YAXPEAVDXPMSAMPLE@@PEBV1@K@Z
?DXDitherArray@@YAXPEBUDXDITHERDESC@@@Z
?DXOverArrayMMX@@YAXPEAVDXPMSAMPLE@@PEBV1@K@Z

shlwapi

UrlCombineW

Exports

Exports

DllCanUnloadNow
DllEnumClassObjects
DllGetClassObject
DllRegisterServer
DllUnregisterServer

Sections

.text
Size: 360KB - Virtual size: 360KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 11KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 16KB - Virtual size: 16KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.idata
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 78KB - Virtual size: 77KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

df243ab4b4cd99501c1b90f0c277c580

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

atl

kernel32

user32

ole32

oleaut32

gdi32

dxtrans

shlwapi

Exports

Exports

Sections

.text Size: 360KB - Virtual size: 360KB

.data Size: 11KB - Virtual size: 10KB

.pdata Size: 16KB - Virtual size: 16KB

.idata Size: 3KB - Virtual size: 3KB

.rsrc Size: 78KB - Virtual size: 77KB

.reloc Size: 9KB - Virtual size: 8KB

.text
Size: 360KB - Virtual size: 360KB

.data
Size: 11KB - Virtual size: 10KB

.pdata
Size: 16KB - Virtual size: 16KB

.idata
Size: 3KB - Virtual size: 3KB

.rsrc
Size: 78KB - Virtual size: 77KB

.reloc
Size: 9KB - Virtual size: 8KB