MSAMRNBSource.pdb
Static task
static1
Behavioral task
behavioral1
Sample
MSAMRNBSource.dll
Resource
win10v2004-20240426-en
General
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Target
MSAMRNBSource.dll
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Size
92KB
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MD5
a88a676a9576dd8758cb033147672978
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SHA1
e9e42b573eef2e0f9b98f271de2ed72cf1216816
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SHA256
2b8fd776d0ab68c8ec2fc638a8400f7a56fe11a8dbb531e3340cd6e4cfc69e35
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SHA512
e9d529269878e3295f0b5add755e17da701aecf2b9dfc7f3bef40c4d53e83a781ddd7b33006cdfd2524438671fb962bf0c07c616f014cb00882187fe46cd0a52
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SSDEEP
1536:I+JjbkQ3kYxAuM3c/jJrsHSfI2AbORLoJcUORWumbxGvVCuqiX7Wm5WN5sfB0pJr:I+JvkVtcbxISfvAb4LoJcUORWLxGUupC
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource MSAMRNBSource.dll
Files
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MSAMRNBSource.dll.dll regsvr32 windows:10 windows x86 arch:x86
153242363b451f50c3cb123cb4a497b2
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
memcmp
_except_handler4_common
??1type_info@@UAE@XZ
_onexit
__dllonexit
_unlock
_lock
_initterm
free
_amsg_exit
_XcptFilter
memmove
memcpy
__CxxFrameHandler3
_CxxThrowException
?what@exception@@UBEPBDXZ
??1exception@@UAE@XZ
??0exception@@QAE@ABV0@@Z
??0exception@@QAE@ABQBDH@Z
??0exception@@QAE@ABQBD@Z
_callnewh
malloc
_purecall
_vsnwprintf
??3@YAXPAX@Z
memset
api-ms-win-core-com-l1-1-0
StringFromGUID2
PropVariantCopy
PropVariantClear
api-ms-win-core-libraryloader-l1-2-0
GetModuleHandleExW
GetModuleFileNameW
DisableThreadLibraryCalls
FreeLibrary
GetProcAddress
api-ms-win-core-registry-l1-1-0
RegDeleteTreeW
RegSetValueExW
RegDeleteKeyExW
RegCreateKeyExW
RegCloseKey
api-ms-win-core-errorhandling-l1-1-0
SetUnhandledExceptionFilter
GetLastError
UnhandledExceptionFilter
SetLastError
api-ms-win-core-synch-l1-1-0
InitializeCriticalSection
LeaveCriticalSection
EnterCriticalSection
DeleteCriticalSection
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
MFCreateStreamDescriptor
MFCreateSample
MFCreateAsyncResult
MFInvokeCallback
MFPutWorkItem
MFCreateMemoryBuffer
MFCreateMediaType
MFInitMediaTypeFromWaveFormatEx
MFCreateMediaEvent
MFCreatePresentationDescriptor
MFCreateEventQueue
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
LocalAlloc
LocalFree
api-ms-win-core-handle-l1-1-0
CloseHandle
Exports
Exports
DllCanUnloadNow
DllGetClassObject
DllRegisterServer
DllUnregisterServer
Sections
.text Size: 81KB - Virtual size: 81KB
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: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ