smbexec[.]exe | Triage

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General

Target

smbexec.exe
Size

6.0MB
MD5

9dd9d006d40d7e43eedbd1db385844b8
SHA1

1ef67d5a3fe42e561486a6b52bd3c0e143e89259
SHA256

e781ce2d795c5dd6b0a5b849a414f5bd05bb99785f2ebf36edb70399205817ee
SHA512

c41d3cad203909bce9e0464d00a38a2c403dc7300390362e1ef5c5a46ab54c5b44627549d83922de3165212c25a0598368b2d396152d052bf0093fea9b7f887a
SSDEEP

98304:gP9cKRyyVyGHAeBSut+aFNnLlPLeqNZ8hY/1KbxabdDk8duupRrQ+Ihse9IfNv5u:C9VlX+aFFLlPKQ8hY/DkZhsM4B5u

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
smbexec.exe

Files

smbexec.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
smbexec.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