ScreenShot
| Created | 2023.05.29 13:26 | Machine | s1_win7_x6401 |
| Filename | postmon.exe | ||
| Type | PE32 executable (GUI) Intel 80386, for MS Windows | ||
| AI Score |
|
Behavior Score |
|
| ZERO API | file : malware | ||
| VT API (file) | 52 detected (AIDetectMalware, MulDrop22, GenericKD, Phonzy, GenericRXVW, Malicious, Coins, Save, TrojanPSW, ZexaF, pCW@aqR, Dnni, ABRisk, ONVO, Attribute, HighConfidence, high confidence, Kryptik, AGen, score, PWSX, Gencirc, FileFinder, Gen7, TMLOADER, YXDEJZ, Burden, ai score=100, Sabsik, Casdet, UN14F8, Detected, PowershellDownloader, R575694, unsafe, qlDhpU51GmN, susgen, HROL, confidence, 100%) | ||
| md5 | f3e968ba5b17cca9be62e5ca9c9b06f0 | ||
| sha256 | 869abff3b6b8d0d0e854a0b7708ece00ab0e578902c694b816a35f102aa9ea5b | ||
| ssdeep | 3072:PRYHxx1X/nD7OWQHBJB79Vd1i+qfsidTij98UwXVoM9EoJfsy9Om4QNYYTAFRNln:PuM9GFoMmEXOm4KMvAOeHz5+ | ||
| imphash | 8ad88ac708ddb8f8b13f36cf34d63196 | ||
| impfuzzy | 48:+BKkUBHve4xc+ULtoS1xGoZZGK3/ZRdK+:+A5veoc+ULtoS1xGojBZRdK+ | ||
Network IP location
Signature (22cnts)
| Level | Description |
|---|---|
| danger | File has been identified by 52 AntiVirus engines on VirusTotal as malicious |
| watch | Network communications indicative of a potential document or script payload download was initiated by the process powershell.exe |
| watch | The process powershell.exe wrote an executable file to disk |
| notice | A process created a hidden window |
| notice | Allocates read-write-execute memory (usually to unpack itself) |
| notice | Checks adapter addresses which can be used to detect virtual network interfaces |
| notice | Checks for the Locally Unique Identifier on the system for a suspicious privilege |
| notice | Creates a shortcut to an executable file |
| notice | Creates a suspicious process |
| notice | Drops an executable to the user AppData folder |
| notice | Poweshell is sending data to a remote host |
| notice | URL downloaded by powershell script |
| notice | Uses Windows utilities for basic Windows functionality |
| info | Checks amount of memory in system |
| info | Checks if process is being debugged by a debugger |
| info | Collects information to fingerprint the system (MachineGuid |
| info | Command line console output was observed |
| info | Powershell script has download & invoke calls |
| info | Queries for the computername |
| 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 | Uses Windows APIs to generate a cryptographic key |
Rules (16cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| warning | Generic_Malware_Zero | Generic Malware | binaries (download) |
| watch | Antivirus | Contains references to security software | binaries (download) |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (download) |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (upload) |
| watch | Malicious_Packer_Zero | Malicious Packer | binaries (download) |
| watch | Malicious_Packer_Zero | Malicious Packer | binaries (upload) |
| watch | UPX_Zero | UPX packed file | binaries (download) |
| watch | UPX_Zero | UPX packed file | binaries (upload) |
| info | IsPE32 | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (upload) |
| info | OS_Processor_Check_Zero | OS Processor Check | binaries (download) |
| 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) |
| info | PowerShell | PowerShell script | scripts |
| info | PowershellDI | Extract Download/Invoke calls from powershell script | scripts |
PE API
IAT(Import Address Table) Library
WININET.dll
0x42b188 InternetReadFile
0x42b18c InternetCloseHandle
0x42b190 InternetCrackUrlW
0x42b194 InternetOpenW
0x42b198 InternetOpenUrlW
0x42b19c InternetQueryDataAvailable
SHLWAPI.dll
0x42b170 StrStrW
0x42b174 wnsprintfW
KERNEL32.dll
0x42b01c GetCommandLineW
0x42b020 GetCommandLineA
0x42b024 GetOEMCP
0x42b028 WriteFile
0x42b02c GetModuleFileNameW
0x42b030 GetEnvironmentVariableW
0x42b034 lstrlenA
0x42b038 CreateFileW
0x42b03c GetFileAttributesW
0x42b040 GetSystemWow64DirectoryW
0x42b044 GetLastError
0x42b048 LoadLibraryA
0x42b04c lstrcatW
0x42b050 lstrcpyA
0x42b054 GetEnvironmentStringsW
0x42b058 CloseHandle
0x42b05c ExitProcess
0x42b060 GetModuleHandleW
0x42b064 lstrcpyW
0x42b068 GetTempFileNameW
0x42b06c HeapFree
0x42b070 HeapReAlloc
0x42b074 HeapAlloc
0x42b078 GetProcessHeap
0x42b07c WideCharToMultiByte
0x42b080 GetACP
0x42b084 IsValidCodePage
0x42b088 FindNextFileW
0x42b08c FreeEnvironmentStringsW
0x42b090 SetStdHandle
0x42b094 HeapSize
0x42b098 TlsSetValue
0x42b09c EnterCriticalSection
0x42b0a0 LeaveCriticalSection
0x42b0a4 DeleteCriticalSection
0x42b0a8 EncodePointer
0x42b0ac DecodePointer
0x42b0b0 MultiByteToWideChar
0x42b0b4 SetLastError
0x42b0b8 InitializeCriticalSectionAndSpinCount
0x42b0bc CreateEventW
0x42b0c0 TlsAlloc
0x42b0c4 TlsGetValue
0x42b0c8 WriteConsoleW
0x42b0cc TlsFree
0x42b0d0 GetSystemTimeAsFileTime
0x42b0d4 GetProcAddress
0x42b0d8 LCMapStringW
0x42b0dc GetLocaleInfoW
0x42b0e0 GetStringTypeW
0x42b0e4 GetCPInfo
0x42b0e8 SetEvent
0x42b0ec ResetEvent
0x42b0f0 WaitForSingleObjectEx
0x42b0f4 UnhandledExceptionFilter
0x42b0f8 SetUnhandledExceptionFilter
0x42b0fc GetCurrentProcess
0x42b100 TerminateProcess
0x42b104 IsProcessorFeaturePresent
0x42b108 IsDebuggerPresent
0x42b10c GetStartupInfoW
0x42b110 QueryPerformanceCounter
0x42b114 GetCurrentProcessId
0x42b118 GetCurrentThreadId
0x42b11c InitializeSListHead
0x42b120 RaiseException
0x42b124 RtlUnwind
0x42b128 FreeLibrary
0x42b12c LoadLibraryExW
0x42b130 GetModuleHandleExW
0x42b134 GetStdHandle
0x42b138 ReadFile
0x42b13c GetConsoleMode
0x42b140 ReadConsoleW
0x42b144 IsValidLocale
0x42b148 GetUserDefaultLCID
0x42b14c EnumSystemLocalesW
0x42b150 GetFileType
0x42b154 FlushFileBuffers
0x42b158 GetConsoleOutputCP
0x42b15c GetFileSizeEx
0x42b160 SetFilePointerEx
0x42b164 FindClose
0x42b168 FindFirstFileExW
USER32.dll
0x42b17c wsprintfW
0x42b180 wsprintfA
ADVAPI32.dll
0x42b000 GetSidSubAuthorityCount
0x42b004 GetSidSubAuthority
0x42b008 RegSetValueExW
0x42b00c RegOpenKeyExW
0x42b010 RegCreateKeyW
0x42b014 RegCloseKey
EAT(Export Address Table) is none
WININET.dll
0x42b188 InternetReadFile
0x42b18c InternetCloseHandle
0x42b190 InternetCrackUrlW
0x42b194 InternetOpenW
0x42b198 InternetOpenUrlW
0x42b19c InternetQueryDataAvailable
SHLWAPI.dll
0x42b170 StrStrW
0x42b174 wnsprintfW
KERNEL32.dll
0x42b01c GetCommandLineW
0x42b020 GetCommandLineA
0x42b024 GetOEMCP
0x42b028 WriteFile
0x42b02c GetModuleFileNameW
0x42b030 GetEnvironmentVariableW
0x42b034 lstrlenA
0x42b038 CreateFileW
0x42b03c GetFileAttributesW
0x42b040 GetSystemWow64DirectoryW
0x42b044 GetLastError
0x42b048 LoadLibraryA
0x42b04c lstrcatW
0x42b050 lstrcpyA
0x42b054 GetEnvironmentStringsW
0x42b058 CloseHandle
0x42b05c ExitProcess
0x42b060 GetModuleHandleW
0x42b064 lstrcpyW
0x42b068 GetTempFileNameW
0x42b06c HeapFree
0x42b070 HeapReAlloc
0x42b074 HeapAlloc
0x42b078 GetProcessHeap
0x42b07c WideCharToMultiByte
0x42b080 GetACP
0x42b084 IsValidCodePage
0x42b088 FindNextFileW
0x42b08c FreeEnvironmentStringsW
0x42b090 SetStdHandle
0x42b094 HeapSize
0x42b098 TlsSetValue
0x42b09c EnterCriticalSection
0x42b0a0 LeaveCriticalSection
0x42b0a4 DeleteCriticalSection
0x42b0a8 EncodePointer
0x42b0ac DecodePointer
0x42b0b0 MultiByteToWideChar
0x42b0b4 SetLastError
0x42b0b8 InitializeCriticalSectionAndSpinCount
0x42b0bc CreateEventW
0x42b0c0 TlsAlloc
0x42b0c4 TlsGetValue
0x42b0c8 WriteConsoleW
0x42b0cc TlsFree
0x42b0d0 GetSystemTimeAsFileTime
0x42b0d4 GetProcAddress
0x42b0d8 LCMapStringW
0x42b0dc GetLocaleInfoW
0x42b0e0 GetStringTypeW
0x42b0e4 GetCPInfo
0x42b0e8 SetEvent
0x42b0ec ResetEvent
0x42b0f0 WaitForSingleObjectEx
0x42b0f4 UnhandledExceptionFilter
0x42b0f8 SetUnhandledExceptionFilter
0x42b0fc GetCurrentProcess
0x42b100 TerminateProcess
0x42b104 IsProcessorFeaturePresent
0x42b108 IsDebuggerPresent
0x42b10c GetStartupInfoW
0x42b110 QueryPerformanceCounter
0x42b114 GetCurrentProcessId
0x42b118 GetCurrentThreadId
0x42b11c InitializeSListHead
0x42b120 RaiseException
0x42b124 RtlUnwind
0x42b128 FreeLibrary
0x42b12c LoadLibraryExW
0x42b130 GetModuleHandleExW
0x42b134 GetStdHandle
0x42b138 ReadFile
0x42b13c GetConsoleMode
0x42b140 ReadConsoleW
0x42b144 IsValidLocale
0x42b148 GetUserDefaultLCID
0x42b14c EnumSystemLocalesW
0x42b150 GetFileType
0x42b154 FlushFileBuffers
0x42b158 GetConsoleOutputCP
0x42b15c GetFileSizeEx
0x42b160 SetFilePointerEx
0x42b164 FindClose
0x42b168 FindFirstFileExW
USER32.dll
0x42b17c wsprintfW
0x42b180 wsprintfA
ADVAPI32.dll
0x42b000 GetSidSubAuthorityCount
0x42b004 GetSidSubAuthority
0x42b008 RegSetValueExW
0x42b00c RegOpenKeyExW
0x42b010 RegCreateKeyW
0x42b014 RegCloseKey
EAT(Export Address Table) is none