Report - sihost.exe

Malicious Library UPX PE File PE32 OS Processor Check
ScreenShot
Created 2023.10.16 09:45 Machine s1_win7_x6403
Filename sihost.exe
Type PE32 executable (GUI) Intel 80386, for MS Windows
AI Score
5
Behavior Score
0.6
ZERO API file : malware
VT API (file)
md5 7d53ef9b324f31e4258e85abff6b3024
sha256 9a8a979e60fda73cadd6c9e5c879ef8f5987e8447907fee02060b397daf3f0b0
ssdeep 3072:4BNotuL2n0fTkZIQtZC4Ah3O+VO83E0kzlx:ga82n0f6Bt8X9m
imphash b4164898143d8dc833316486e3ec834f
impfuzzy 48:vaDnpuVXXVgBtqmdRvbf2cO1uPecfjtt4dtcDAAQ4J:SWXXVgfRdvYMecfjttetcrNJ
  Network IP location

Signature (2cnts)

Level Description
notice Allocates read-write-execute memory (usually to unpack itself)
info The executable contains unknown PE section names indicative of a packer (could be a false positive)

Rules (5cnts)

Level Name Description Collection
watch Malicious_Library_Zero Malicious_Library binaries (upload)
watch UPX_Zero UPX packed file binaries (upload)
info IsPE32 (no description) binaries (upload)
info OS_Processor_Check_Zero OS Processor Check binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)

Network (0cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?

Suricata ids

PE API

IAT(Import Address Table) Library

KERNEL32.dll
 0x401008 SetDefaultCommConfigA
 0x40100c GetConsoleAliasesLengthW
 0x401010 GetLocaleInfoA
 0x401014 GetConsoleAliasExesA
 0x401018 CommConfigDialogA
 0x40101c FindResourceW
 0x401020 BuildCommDCBAndTimeoutsA
 0x401024 MapUserPhysicalPages
 0x401028 OpenJobObjectA
 0x40102c ReadConsoleA
 0x401030 InterlockedDecrement
 0x401034 QueryPerformanceCounter
 0x401038 GetEnvironmentStringsW
 0x40103c GetModuleHandleExW
 0x401040 WriteConsoleInputA
 0x401044 SetComputerNameW
 0x401048 FreeEnvironmentStringsA
 0x40104c SetThreadUILanguage
 0x401050 FindNextVolumeMountPointA
 0x401054 ConvertFiberToThread
 0x401058 GetWindowsDirectoryA
 0x40105c GetCompressedFileSizeW
 0x401060 WaitNamedPipeW
 0x401064 EnumTimeFormatsA
 0x401068 WriteFile
 0x40106c GetCommandLineA
 0x401070 GetDriveTypeA
 0x401074 GetEnvironmentStrings
 0x401078 FindResourceExA
 0x40107c GetConsoleCP
 0x401080 LoadLibraryW
 0x401084 GetConsoleMode
 0x401088 ReadConsoleInputA
 0x40108c SetConsoleCP
 0x401090 DeleteVolumeMountPointW
 0x401094 EnumSystemCodePagesA
 0x401098 GetFileAttributesW
 0x40109c SetSystemPowerState
 0x4010a0 GetAtomNameW
 0x4010a4 GetComputerNameA
 0x4010a8 GetACP
 0x4010ac GetVolumePathNameA
 0x4010b0 GetStartupInfoW
 0x4010b4 GetNamedPipeHandleStateW
 0x4010b8 GetConsoleAliasesW
 0x4010bc FindFirstFileA
 0x4010c0 OpenMutexW
 0x4010c4 GetLastError
 0x4010c8 SetLastError
 0x4010cc PeekConsoleInputW
 0x4010d0 VerLanguageNameA
 0x4010d4 SetVolumeLabelW
 0x4010d8 HeapUnlock
 0x4010dc MoveFileW
 0x4010e0 CopyFileA
 0x4010e4 GetTempFileNameA
 0x4010e8 FindClose
 0x4010ec LoadLibraryA
 0x4010f0 LocalAlloc
 0x4010f4 CreateHardLinkW
 0x4010f8 AddAtomW
 0x4010fc RemoveDirectoryW
 0x401100 SetCommMask
 0x401104 GetTapeParameters
 0x401108 FoldStringW
 0x40110c GetPrivateProfileSectionNamesA
 0x401110 FindNextFileA
 0x401114 GetModuleHandleA
 0x401118 GetStringTypeW
 0x40111c GetConsoleTitleW
 0x401120 VirtualProtect
 0x401124 FatalAppExitA
 0x401128 GetShortPathNameW
 0x40112c SetCalendarInfoA
 0x401130 OpenSemaphoreW
 0x401134 FindFirstVolumeW
 0x401138 ReadConsoleOutputCharacterW
 0x40113c DeleteFileA
 0x401140 FlushFileBuffers
 0x401144 SetStdHandle
 0x401148 SetFilePointer
 0x40114c CreateFileW
 0x401150 GetVolumeNameForVolumeMountPointA
 0x401154 MoveFileA
 0x401158 HeapFree
 0x40115c HeapAlloc
 0x401160 GetProcAddress
 0x401164 GetModuleHandleW
 0x401168 ExitProcess
 0x40116c DecodePointer
 0x401170 WideCharToMultiByte
 0x401174 HeapReAlloc
 0x401178 GetCommandLineW
 0x40117c HeapSetInformation
 0x401180 IsProcessorFeaturePresent
 0x401184 HeapCreate
 0x401188 GetStdHandle
 0x40118c GetModuleFileNameW
 0x401190 EncodePointer
 0x401194 InitializeCriticalSectionAndSpinCount
 0x401198 DeleteCriticalSection
 0x40119c LeaveCriticalSection
 0x4011a0 EnterCriticalSection
 0x4011a4 UnhandledExceptionFilter
 0x4011a8 SetUnhandledExceptionFilter
 0x4011ac IsDebuggerPresent
 0x4011b0 TerminateProcess
 0x4011b4 GetCurrentProcess
 0x4011b8 TlsAlloc
 0x4011bc TlsGetValue
 0x4011c0 TlsSetValue
 0x4011c4 TlsFree
 0x4011c8 InterlockedIncrement
 0x4011cc GetCurrentThreadId
 0x4011d0 GetCPInfo
 0x4011d4 GetOEMCP
 0x4011d8 IsValidCodePage
 0x4011dc SetHandleCount
 0x4011e0 GetFileType
 0x4011e4 CloseHandle
 0x4011e8 FreeEnvironmentStringsW
 0x4011ec GetTickCount
 0x4011f0 GetCurrentProcessId
 0x4011f4 GetSystemTimeAsFileTime
 0x4011f8 Sleep
 0x4011fc HeapSize
 0x401200 RtlUnwind
 0x401204 LCMapStringW
 0x401208 MultiByteToWideChar
 0x40120c RaiseException
 0x401210 WriteConsoleW
USER32.dll
 0x401218 CharUpperBuffA
 0x40121c CharUpperW
GDI32.dll
 0x401000 GetTextFaceA
WINHTTP.dll
 0x401224 WinHttpReadData

EAT(Export Address Table) is none



Similarity measure (PE file only) - Checking for service failure