smbrelayx[.]exe

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General

Target

smbrelayx.exe
Size

16.0MB
MD5

38263a9cac38e2b65da5225720e6e03d
SHA1

54be9e1785fcf23dbe008871fa4031aa1dfeff9f
SHA256

5499bc48b9e9289a19e8215f3ee3a7003dc2057d13970bfffc42231a93e690a9
SHA512

e14c54e0e69827ed2788ef22a3b7145f217db1769582c3dcf32c9fa5d34901fa8efb917790fb63e47b27461b1c9ea2f225bbbef92658c581e4d3532b68ad433f
SSDEEP

393216:C94lrFFudMMDJuyVewZ10dTNEn/D/KHYg6qdsDxVohcq:C9yudIq/yNEmHYg6qdQ

Score

3^/10

pyinstaller

Malware Config

Signatures

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
sample	pyinstaller

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
smbrelayx.exe

Files

smbrelayx.exe
.exe windows:5 windows x86 arch:x86

fc40519af20116c903e3ff836e366e39

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

GetLastError
SetDllDirectoryW
GetModuleFileNameW
GetProcAddress
GetCommandLineW
GetEnvironmentVariableW
SetEnvironmentVariableW
ExpandEnvironmentStringsW
GetTempPathW
WaitForSingleObject
Sleep
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
LoadLibraryExW
GetShortPathNameW
FormatMessageA
LoadLibraryA
MultiByteToWideChar
WideCharToMultiByte
DecodePointer
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW
RtlUnwind
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetCommandLineA
ReadFile
CreateFileW
GetDriveTypeW
GetFileType
CloseHandle
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetFullPathNameW
GetFullPathNameA
CreateDirectoryW
RemoveDirectoryW
FindClose
FindFirstFileExW
FindNextFileW
SetStdHandle
SetConsoleCtrlHandler
DeleteFileW
GetStdHandle
WriteFile
ExitProcess
GetModuleHandleExW
GetACP
HeapFree
HeapAlloc
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetConsoleCP
CompareStringW
LCMapStringW
GetCurrentDirectoryW
FlushFileBuffers
SetEnvironmentVariableA
GetFileAttributesExW
IsValidCodePage
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetStringTypeW
GetProcessHeap
WriteConsoleW
GetTimeZoneInformation
HeapSize
HeapReAlloc
SetEndOfFile
RaiseException

ws2_32

ntohl

Sections

.text
Size: 124KB - Virtual size: 124KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 44KB - Virtual size: 44KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 57KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 512B - Virtual size: 184B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 363KB - Virtual size: 363KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
smbrelayx.pyc

Sharing

General

Malware Config

Signatures

Files

fc40519af20116c903e3ff836e366e39

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

ws2_32

Sections

.text Size: 124KB - Virtual size: 124KB

.rdata Size: 44KB - Virtual size: 44KB

.data Size: 2KB - Virtual size: 57KB

.gfids Size: 512B - Virtual size: 184B

.rsrc Size: 363KB - Virtual size: 363KB

.reloc Size: 6KB - Virtual size: 5KB

.text
Size: 124KB - Virtual size: 124KB

.rdata
Size: 44KB - Virtual size: 44KB

.data
Size: 2KB - Virtual size: 57KB

.gfids
Size: 512B - Virtual size: 184B

.rsrc
Size: 363KB - Virtual size: 363KB

.reloc
Size: 6KB - Virtual size: 5KB