OSProvider[.]dll

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General

Target

OSProvider.dll
Size

149KB
MD5

db4c3a07a1d3a45af53a4cf44ed550ad
SHA1

5dea737faadf0422c94f8f50e9588033d53d13b3
SHA256

2165d567aa47264abe2a866bb1bcb01a1455a75a6ea530b1b9a4dda54d08f758
SHA512

5182b80459447f3c1fb63b70ad0370e1da26828a7f73083bec0af875b37888dd12ec5a6d9dc84157fc5b535f473ad7019eb6a53b9a47a2e64e6a8b7fae4cddde
SSDEEP

3072:mT/wD4tK821qqa4SzpVYJyAu27gH3MgDXGy:mTasK6LpVObgH9DX

Score

1^/10

Malware Config

Signatures

Files

OSProvider.dll
.dll regsvr32 windows:10 windows x64 arch:x64

940e602fcc3c64d0a12a0fd111c6fb16

Code Sign

33:00:00:02:66:bd:15:80:ef:a7:5c:d6:d3:00:00:00:00:02:66
Certificate

Issuer

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

Not Before

04-03-2020 18:30

Not After

03-03-2021 18:30

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

ca:2b:a9:42:e3:16:21:19:b7:91:5a:78:1c:fb:74:69:2a:06:54:8a:12:d0:68:a6:61:65:da:b4:09:d9:35:87
Signer

Actual PE Digest

ca:2b:a9:42:e3:16:21:19:b7:91:5a:78:1c:fb:74:69:2a:06:54:8a:12:d0:68:a6:61:65:da:b4:09:d9:35:87

Digest Algorithm

sha256

PE Digest Matches

true

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_REMOVABLE_RUN_FROM_SWAP
IMAGE_FILE_NET_RUN_FROM_SWAP
IMAGE_FILE_DLL

Imports

msvcrt

towupper
wcschr
wcsrchr
_wcsnicmp
wcsncmp
_vsnwprintf
memset
memcmp
memcpy
??1type_info@@UEAA@XZ
_onexit
__dllonexit
_unlock
_lock
?terminate@@YAXXZ
_initterm
_amsg_exit
_XcptFilter
_CxxThrowException
_callnewh
?what@exception@@UEBAPEBDXZ
??1exception@@UEAA@XZ
??0exception@@QEAA@AEBV0@@Z
??0exception@@QEAA@AEBQEBDH@Z
malloc
memmove_s
memcpy_s
_purecall
wcsstr
_wcslwr_s
vswprintf_s
_vscwprintf
_wcsicmp
wcsncpy_s
wcscat_s
free
wcscpy_s
__C_specific_handler
__CxxFrameHandler3

advapi32

RegCreateKeyExW
RegSetValueExW
RegFlushKey
RegUnLoadKeyW
RegLoadKeyW
AdjustTokenPrivileges
LookupPrivilegeValueW
OpenProcessToken
RegQueryValueExW
RegOpenKeyExW
RegQueryInfoKeyW
RegCloseKey

kernel32

DisableThreadLibraryCalls
GetThreadLocale
SetThreadLocale
DeleteCriticalSection
RaiseException
GetLastError
GetModuleFileNameW
GetProcAddress
LoadLibraryExW
GetModuleHandleW
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
SetThreadUILanguage
GetCurrentThreadId
GetCurrentProcessId
MultiByteToWideChar
OutputDebugStringW
Sleep
GetFileAttributesW
GetCurrentProcess
OpenProcess
SetEnvironmentVariableW
FreeLibrary
GetEnvironmentVariableW
SizeofResource
LockResource
LoadResource
FindResourceExW
HeapSize
HeapReAlloc
HeapFree
HeapAlloc
GetProcessHeap
HeapDestroy
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
QueryPerformanceCounter
GetSystemTimeAsFileTime
GetTickCount
GetFullPathNameW
CreateFileW
GetFileInformationByHandle
LocalFree
FormatMessageW
ReadFile
SetFilePointer
SetLastError
GetVersionExW
CloseHandle
GetSystemWindowsDirectoryW
MapViewOfFile
CreateFileMappingW
UnmapViewOfFile
SearchPathW
GetModuleHandleExW
GetSystemInfo

ole32

StringFromGUID2
CoCreateInstance
CoTaskMemFree
ProgIDFromCLSID

user32

CharNextW
LoadStringW

oleaut32

SysFreeString
UnRegisterTypeLi
SysAllocString
LoadTypeLi
RegisterTypeLi
SysStringLen
SysAllocStringLen
SysStringByteLen
SysAllocStringByteLen
LoadRegTypeLi
SetErrorInfo
CreateErrorInfo

ntdll

RtlAllocateHeap
RtlFreeHeap
NtUnloadKey2
NtQueryInformationProcess
NtQueryOpenSubKeysEx
RtlInitUnicodeString

version

GetFileVersionInfoExW
VerQueryValueW
GetFileVersionInfoSizeExW

Exports

Exports

DLLGetDISMProviderCLSID
DllCanUnloadNow
DllGetClassObject
DllRegisterServer
DllUnregisterServer

Sections

.text
Size: 81KB - Virtual size: 80KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 50KB - Virtual size: 49KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 600B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

940e602fcc3c64d0a12a0fd111c6fb16

Code Sign

33:00:00:02:66:bd:15:80:ef:a7:5c:d6:d3:00:00:00:00:02:66Certificate

Extended Key Usages

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

Key Usages

ca:2b:a9:42:e3:16:21:19:b7:91:5a:78:1c:fb:74:69:2a:06:54:8a:12:d0:68:a6:61:65:da:b4:09:d9:35:87Signer

Headers

DLL Characteristics

File Characteristics

Imports

msvcrt

advapi32

kernel32

ole32

user32

oleaut32

ntdll

version

Exports

Exports

Sections

.text Size: 81KB - Virtual size: 80KB

.rdata Size: 50KB - Virtual size: 49KB

.data Size: 3KB - Virtual size: 4KB

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

.rsrc Size: 2KB - Virtual size: 1KB

.reloc Size: 1024B - Virtual size: 600B

33:00:00:02:66:bd:15:80:ef:a7:5c:d6:d3:00:00:00:00:02:66
Certificate

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

ca:2b:a9:42:e3:16:21:19:b7:91:5a:78:1c:fb:74:69:2a:06:54:8a:12:d0:68:a6:61:65:da:b4:09:d9:35:87
Signer

.text
Size: 81KB - Virtual size: 80KB

.rdata
Size: 50KB - Virtual size: 49KB

.data
Size: 3KB - Virtual size: 4KB

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

.rsrc
Size: 2KB - Virtual size: 1KB

.reloc
Size: 1024B - Virtual size: 600B