mscorsvw[.]exe

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General

Target

mscorsvw.exe
Size

22.9MB
MD5

c6bbc0f697836b93dafe13c27b53e732
SHA1

8f9e03fb9b75f6376a76c98c1ab70b91c09e915a
SHA256

14eb912f5fbad3ed025f38a197465593874a8d0d3288e790bfd4740ca4fb52e4
SHA512

47b2b1347be520f6825d447a59368493418203754c57583afc463e1305dcc67d17596664e66e643f08a1ab37ac233e274984c19041eaced1209db0a899179668
SSDEEP

98304:obxusIXXb1dB3Ly3zq2Zk63OMnI7RkEEO+BcLlApOzOlrBVCs7lCKmWSJiqxq0p9:QxusQb1dF1Mn1nOaqHgV1iTT

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
mscorsvw.exe

Files

mscorsvw.exe
.exe windows:4 windows x64

4b1a4a9cdcfa5764a67e65a516bdbe36

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

advapi32

OpenProcessToken
RegCloseKey
RegEnumKeyExW
RegEnumValueW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
SystemFunction036

bcrypt

BCryptGenRandom

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AddVectoredExceptionHandler
CancelIo
CancelIoEx
CloseHandle
CompareStringOrdinal
CopyFileExW
CreateDirectoryW
CreateEventA
CreateEventW
CreateFileMappingA
CreateFileW
CreateHardLinkW
CreateIoCompletionPort
CreateMutexA
CreateNamedPipeW
CreateProcessW
CreateSemaphoreA
CreateSymbolicLinkW
CreateThread
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteFileW
DeviceIoControl
DuplicateHandle
EnterCriticalSection
ExitProcess
FileTimeToSystemTime
FindClose
FindFirstFileW
FindNextFileW
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
GetCommandLineW
GetConsoleMode
GetConsoleScreenBufferInfo
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFinalPathNameByHandleW
GetHandleInformation
GetLastError
GetLogicalProcessorInformation
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleW
GetOverlappedResult
GetProcAddress
GetProcessAffinityMask
GetProcessHeap
GetProcessId
GetQueuedCompletionStatus
GetQueuedCompletionStatusEx
GetStartupInfoA
GetStdHandle
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadContext
GetThreadPriority
GetTickCount
GetTimeZoneInformation
HeapAlloc
HeapFree
HeapReAlloc
InitializeCriticalSection
IsDBCSLeadByteEx
IsDebuggerPresent
LeaveCriticalSection
LoadLibraryA
MapViewOfFile
Module32FirstW
Module32NextW
MoveFileExW
MultiByteToWideChar
OpenProcess
OutputDebugStringA
PostQueuedCompletionStatus
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
ReleaseMutex
ReleaseSRWLockExclusive
ReleaseSRWLockShared
ReleaseSemaphore
RemoveDirectoryW
RemoveVectoredExceptionHandler
ResetEvent
ResumeThread
RtlAddFunctionTable
RtlCaptureContext
RtlLookupFunctionEntry
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetConsoleMode
SetConsoleTextAttribute
SetCurrentDirectoryW
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFileCompletionNotificationModes
SetFileInformationByHandle
SetFilePointerEx
SetHandleInformation
SetLastError
SetProcessAffinityMask
SetThreadContext
SetThreadPriority
SetThreadStackGuarantee
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SuspendThread
SwitchToThread
SystemTimeToFileTime
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
TryAcquireSRWLockShared
TryEnterCriticalSection
TzSpecificLocalTimeToSystemTime
UnhandledExceptionFilter
UnmapViewOfFile
VirtualAlloc
VirtualFree
VirtualLock
VirtualProtect
VirtualQuery
VirtualUnlock
WaitForMultipleObjects
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
__C_specific_handler

msvcrt

___lc_codepage_func
___mb_cur_max_func
__getmainargs
__initenv
__iob_func
__lconv_init
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_assert
_beginthreadex
_cexit
_endthreadex
_errno
_fmode
_fpreset
_initterm
_lock
_onexit
_setjmp
_ultoa
_unlock
abort
calloc
ceil
exit
exp
fmod
fmodf
fprintf
fputc
free
frexp
fwrite
localeconv
log
malloc
memcmp
memcpy
memmove
memset
pow
printf
putchar
puts
raise
realloc
signal
strchr
strerror
strlen
strncmp
strrchr
vfprintf
wcslen
longjmp
_strdup

userenv

GetUserProfileDirectoryW

ws2_32

WSACleanup
WSADuplicateSocketW
WSAGetLastError
WSAGetOverlappedResult
WSAIoctl
WSARecv
WSARecvFrom
WSASend
WSASendTo
WSASocketW
WSAStartup
accept
bind
closesocket
connect
freeaddrinfo
getaddrinfo
getpeername
getsockname
getsockopt
ioctlsocket
listen
recv
recvfrom
select
send
sendto
setsockopt
shutdown

Sections

.text
Size: 8.2MB - Virtual size: 8.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 25KB - Virtual size: 23KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 2.3MB - Virtual size: 2.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 250KB - Virtual size: 249KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 291KB - Virtual size: 291KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 6KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 176B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 84KB - Virtual size: 84KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/4
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/19
Size: 371KB - Virtual size: 371KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/35
Size: 512B - Virtual size: 216B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/51
Size: 1.4MB - Virtual size: 1.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/63
Size: 38KB - Virtual size: 37KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/77
Size: 541KB - Virtual size: 540KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/89
Size: 22KB - Virtual size: 22KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/102
Size: 1.0MB - Virtual size: 1.0MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/113
Size: 731KB - Virtual size: 730KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/124
Size: 336KB - Virtual size: 336KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/137
Size: 645KB - Virtual size: 644KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

4b1a4a9cdcfa5764a67e65a516bdbe36

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

bcrypt

kernel32

msvcrt

userenv

ws2_32

Sections

.text Size: 8.2MB - Virtual size: 8.2MB

.data Size: 25KB - Virtual size: 23KB

.rdata Size: 2.3MB - Virtual size: 2.3MB

.pdata Size: 250KB - Virtual size: 249KB

.xdata Size: 291KB - Virtual size: 291KB

.bss Size: - Virtual size: 6KB

.idata Size: 9KB - Virtual size: 9KB

.CRT Size: 512B - Virtual size: 176B

.tls Size: 512B - Virtual size: 16B

.reloc Size: 84KB - Virtual size: 84KB

/4 Size: 5KB - Virtual size: 4KB

/19 Size: 371KB - Virtual size: 371KB

/35 Size: 512B - Virtual size: 216B

/51 Size: 1.4MB - Virtual size: 1.4MB

/63 Size: 38KB - Virtual size: 37KB

/77 Size: 541KB - Virtual size: 540KB

/89 Size: 22KB - Virtual size: 22KB

/102 Size: 1.0MB - Virtual size: 1.0MB

/113 Size: 731KB - Virtual size: 730KB

/124 Size: 336KB - Virtual size: 336KB

/137 Size: 645KB - Virtual size: 644KB

.text
Size: 8.2MB - Virtual size: 8.2MB

.data
Size: 25KB - Virtual size: 23KB

.rdata
Size: 2.3MB - Virtual size: 2.3MB

.pdata
Size: 250KB - Virtual size: 249KB

.xdata
Size: 291KB - Virtual size: 291KB

.bss
Size: - Virtual size: 6KB

.idata
Size: 9KB - Virtual size: 9KB

.CRT
Size: 512B - Virtual size: 176B

.tls
Size: 512B - Virtual size: 16B

.reloc
Size: 84KB - Virtual size: 84KB

/4
Size: 5KB - Virtual size: 4KB

/19
Size: 371KB - Virtual size: 371KB

/35
Size: 512B - Virtual size: 216B

/51
Size: 1.4MB - Virtual size: 1.4MB

/63
Size: 38KB - Virtual size: 37KB

/77
Size: 541KB - Virtual size: 540KB

/89
Size: 22KB - Virtual size: 22KB

/102
Size: 1.0MB - Virtual size: 1.0MB

/113
Size: 731KB - Virtual size: 730KB

/124
Size: 336KB - Virtual size: 336KB

/137
Size: 645KB - Virtual size: 644KB