Report - builden.exe

Malicious Library UPX PE32 PE File OS Processor Check .NET EXE
ScreenShot
Created 2024.02.04 16:49 Machine s1_win7_x6403
Filename builden.exe
Type PE32 executable (GUI) Intel 80386, for MS Windows
AI Score
5
Behavior Score
3.6
ZERO API file : malware
VT API (file) 36 detected (malicious, high confidence, score, WacatacFC, S18892752, Androm, Artemis, FileRepMalware, Misc, MSIL@AI, MSIL2, U4Lioitaj4KnhrjL, q3siw, AGEN, Generic ML PUA, mgqw, ai score=82, Wacatac, 16RKLCG, ZemsilF, Xm0@auzWHPi, GdSda, Gajl, Static AI, Malicious PE, confidence)
md5 db95cbd1fa1fc7983128cecf51a8795f
sha256 5bd62fd96f6b7dab483da91e9ee74be2df8d25e180d5ac6b6c979b6815475068
ssdeep 24576:DLlgAikPzj9DgRq3x90Qze3uLfWDaRAuq:Dy4j9Dgax909wqSq
imphash ae9f6a32bb8b03dce37903edbc855ba1
impfuzzy 48:J9F2OcLKc1XFjRWDYgeBtDX+Kc+pnCHFa:JqFLKc1XF8EdBtDX+Kc+pnMFa
  Network IP location

Signature (10cnts)

Level Description
danger File has been identified by 36 AntiVirus engines on VirusTotal as malicious
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice Creates executable files on the filesystem
notice Drops a binary and executes it
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info The executable contains unknown PE section names indicative of a packer (could be a false positive)
info The file contains an unknown PE resource name possibly indicative of a packer
info This executable has a PDB path

Rules (8cnts)

Level Name Description Collection
watch Malicious_Library_Zero Malicious_Library binaries (upload)
watch UPX_Zero UPX packed file binaries (upload)
info Is_DotNET_EXE (no description) binaries (download)
info IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info OS_Processor_Check_Zero OS Processor Check binaries (upload)
info PE_Header_Zero PE File Signature binaries (download)
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
 0x427000 GetLastError
 0x427004 SetLastError
 0x427008 FormatMessageW
 0x42700c GetFileType
 0x427010 GetStdHandle
 0x427014 WriteFile
 0x427018 ReadFile
 0x42701c FlushFileBuffers
 0x427020 SetEndOfFile
 0x427024 SetFilePointer
 0x427028 SetFileTime
 0x42702c CloseHandle
 0x427030 CreateFileW
 0x427034 CreateDirectoryW
 0x427038 SetFileAttributesW
 0x42703c GetFileAttributesW
 0x427040 DeleteFileW
 0x427044 MoveFileW
 0x427048 FindClose
 0x42704c FindFirstFileW
 0x427050 FindNextFileW
 0x427054 GetVersionExW
 0x427058 GetCurrentDirectoryW
 0x42705c GetFullPathNameW
 0x427060 FoldStringW
 0x427064 GetModuleFileNameW
 0x427068 GetModuleHandleW
 0x42706c FindResourceW
 0x427070 FreeLibrary
 0x427074 GetProcAddress
 0x427078 GetCurrentProcessId
 0x42707c ExitProcess
 0x427080 SetThreadExecutionState
 0x427084 Sleep
 0x427088 LoadLibraryW
 0x42708c GetSystemDirectoryW
 0x427090 CompareStringW
 0x427094 AllocConsole
 0x427098 FreeConsole
 0x42709c AttachConsole
 0x4270a0 WriteConsoleW
 0x4270a4 TzSpecificLocalTimeToSystemTime
 0x4270a8 SystemTimeToFileTime
 0x4270ac FileTimeToLocalFileTime
 0x4270b0 LocalFileTimeToFileTime
 0x4270b4 FileTimeToSystemTime
 0x4270b8 GetCPInfo
 0x4270bc IsDBCSLeadByte
 0x4270c0 MultiByteToWideChar
 0x4270c4 WideCharToMultiByte
 0x4270c8 GlobalAlloc
 0x4270cc LockResource
 0x4270d0 GlobalLock
 0x4270d4 GlobalUnlock
 0x4270d8 GlobalFree
 0x4270dc LoadResource
 0x4270e0 SizeofResource
 0x4270e4 SetCurrentDirectoryW
 0x4270e8 GetExitCodeProcess
 0x4270ec WaitForSingleObject
 0x4270f0 GetLocalTime
 0x4270f4 GetTickCount
 0x4270f8 MapViewOfFile
 0x4270fc UnmapViewOfFile
 0x427100 CreateFileMappingW
 0x427104 OpenFileMappingW
 0x427108 GetCommandLineW
 0x42710c SetEnvironmentVariableW
 0x427110 ExpandEnvironmentStringsW
 0x427114 GetTempPathW
 0x427118 MoveFileExW
 0x42711c GetLocaleInfoW
 0x427120 GetTimeFormatW
 0x427124 GetDateFormatW
 0x427128 GetNumberFormatW
 0x42712c SetFilePointerEx
 0x427130 GetConsoleMode
 0x427134 GetConsoleCP
 0x427138 HeapSize
 0x42713c SetStdHandle
 0x427140 GetProcessHeap
 0x427144 RaiseException
 0x427148 GetSystemInfo
 0x42714c VirtualProtect
 0x427150 VirtualQuery
 0x427154 LoadLibraryExA
 0x427158 IsProcessorFeaturePresent
 0x42715c IsDebuggerPresent
 0x427160 UnhandledExceptionFilter
 0x427164 SetUnhandledExceptionFilter
 0x427168 GetStartupInfoW
 0x42716c QueryPerformanceCounter
 0x427170 GetCurrentThreadId
 0x427174 GetSystemTimeAsFileTime
 0x427178 InitializeSListHead
 0x42717c GetCurrentProcess
 0x427180 TerminateProcess
 0x427184 RtlUnwind
 0x427188 EncodePointer
 0x42718c EnterCriticalSection
 0x427190 LeaveCriticalSection
 0x427194 DeleteCriticalSection
 0x427198 InitializeCriticalSectionAndSpinCount
 0x42719c TlsAlloc
 0x4271a0 TlsGetValue
 0x4271a4 TlsSetValue
 0x4271a8 TlsFree
 0x4271ac LoadLibraryExW
 0x4271b0 QueryPerformanceFrequency
 0x4271b4 GetModuleHandleExW
 0x4271b8 GetModuleFileNameA
 0x4271bc GetACP
 0x4271c0 HeapFree
 0x4271c4 HeapAlloc
 0x4271c8 HeapReAlloc
 0x4271cc GetStringTypeW
 0x4271d0 LCMapStringW
 0x4271d4 FindFirstFileExA
 0x4271d8 FindNextFileA
 0x4271dc IsValidCodePage
 0x4271e0 GetOEMCP
 0x4271e4 GetCommandLineA
 0x4271e8 GetEnvironmentStringsW
 0x4271ec FreeEnvironmentStringsW
 0x4271f0 DecodePointer
gdiplus.dll
 0x4271f8 GdiplusShutdown
 0x4271fc GdiplusStartup
 0x427200 GdipCreateHBITMAPFromBitmap
 0x427204 GdipCreateBitmapFromStreamICM
 0x427208 GdipCreateBitmapFromStream
 0x42720c GdipDisposeImage
 0x427210 GdipCloneImage
 0x427214 GdipFree
 0x427218 GdipAlloc

EAT(Export Address Table) Library



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