MSAMRNBSource[.]dll

Sharing

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General

Target

MSAMRNBSource.dll
Size

85KB
MD5

4c90fb63962f36ae36d35911cac3f8c3
SHA1

24a518f3247d2da6faa97227fa4651de1f733ff0
SHA256

904fa7c210eaa8fadd3c15ceebd2be72376c8458606897b0b93c3633640969d3
SHA512

e25c8e2feea866e8320fa98a8896ef6bfebaa1dca3e3a28d267ca285945b9f03af6ff2d54137f82821f4ca4380688f3d723ed9c0866d3d206cf629191ae93f56
SSDEEP

1536:ijbkCpM0qwJXSvbRgi2eIW44AdxDkPCelPV73Sb9XR2Rq+h9Ku9nfAJ9sTHpvT9f:ivkG5JXLbe34fxD6Celd73Q2Rp9Kutfz

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
MSAMRNBSource.dll

Files

MSAMRNBSource.dll
.dll regsvr32 windows:10 windows x86 arch:x86

a4bfd749e25cb81040707ba3c1f53978

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

MSAMRNBSource.pdb

Imports

msvcrt

_vsnwprintf
memcpy
_except_handler4_common
??1type_info@@UAE@XZ
_initterm
_amsg_exit
_XcptFilter
_CxxThrowException
_callnewh
?what@exception@@UBEPBDXZ
??1exception@@UAE@XZ
??0exception@@QAE@ABV0@@Z
??0exception@@QAE@XZ
malloc
free
_purecall
memcmp
memset

api-ms-win-core-com-l1-1-0

PropVariantCopy
StringFromGUID2
PropVariantClear

api-ms-win-core-libraryloader-l1-2-0

GetModuleFileNameW
FreeLibrary
DisableThreadLibraryCalls
GetProcAddress
GetModuleHandleExW

api-ms-win-core-registry-l1-1-0

RegSetValueExW
RegCloseKey
RegDeleteTreeW
RegDeleteKeyExW
RegCreateKeyExW

api-ms-win-core-errorhandling-l1-1-0

GetLastError
SetLastError
SetUnhandledExceptionFilter
UnhandledExceptionFilter

api-ms-win-core-synch-l1-1-0

DeleteCriticalSection
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection

api-ms-win-core-synch-l1-2-0

Sleep

api-ms-win-core-profile-l1-1-0

QueryPerformanceCounter

api-ms-win-core-processthreads-l1-1-0

GetCurrentProcess
TerminateProcess
GetCurrentThreadId
GetCurrentProcessId

api-ms-win-core-sysinfo-l1-1-0

GetSystemTimeAsFileTime
GetTickCount

mfplat

MFCreateMediaType
MFCreateMemoryBuffer
MFPutWorkItem
MFInitMediaTypeFromWaveFormatEx
MFCreateMediaEvent
MFCreateStreamDescriptor
MFInvokeCallback
MFCreateEventQueue
MFCreateSample
MFCreatePresentationDescriptor
MFCreateAsyncResult

api-ms-win-core-heap-l1-1-0

GetProcessHeap
HeapFree
HeapAlloc

api-ms-win-core-processthreads-l1-1-1

GetProcessMitigationPolicy

api-ms-win-core-heap-l2-1-0

LocalFree
LocalAlloc

api-ms-win-core-handle-l1-1-0

CloseHandle

Exports

Exports

DllCanUnloadNow
DllGetClassObject
DllRegisterServer
DllUnregisterServer

Sections

.text
Size: 75KB - Virtual size: 75KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 1024B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 3KB - Virtual size: 2KB

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: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

a4bfd749e25cb81040707ba3c1f53978

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

api-ms-win-core-com-l1-1-0

api-ms-win-core-libraryloader-l1-2-0

api-ms-win-core-registry-l1-1-0

api-ms-win-core-errorhandling-l1-1-0

api-ms-win-core-synch-l1-1-0

api-ms-win-core-synch-l1-2-0

api-ms-win-core-profile-l1-1-0

api-ms-win-core-processthreads-l1-1-0

api-ms-win-core-sysinfo-l1-1-0

mfplat

api-ms-win-core-heap-l1-1-0

api-ms-win-core-processthreads-l1-1-1

api-ms-win-core-heap-l2-1-0

api-ms-win-core-handle-l1-1-0

Exports

Exports

Sections

.text Size: 75KB - Virtual size: 75KB

.data Size: 1024B - Virtual size: 1KB

.idata Size: 3KB - Virtual size: 2KB

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

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

.text
Size: 75KB - Virtual size: 75KB

.data
Size: 1024B - Virtual size: 1KB

.idata
Size: 3KB - Virtual size: 2KB

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

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