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Report - KavachAuthentication%20Updater.exe

Emotet Downloader UPX Malicious Library ASPack Malicious Packer Antivirus Create Service Socket Http API Escalate priviledges PWS HTTP DNS ScreenShot Internet API persistence KeyLogger AntiDebug AntiVM PE64 PE File BMP Format DLL JPEG Format GIF Format OS
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ScreenShot
Created 2023.07.25 07:45 Machine s1_win7_x6403
Filename KavachAuthentication%20Updater.exe
Type PE32+ executable (GUI) x86-64, for MS Windows
AI Score
4
 Behavior Score
6.4
ZERO API file : mailcious
VT API (file) 18 detected (malicious, moderate confidence, Artemis, V9fv, score, AGEN, Generic ML PUA, CoinMiner, Casdet, Detected, SparkRat, Biodata, GNVQ1TR)
md5 2e66189aa1b6fd345a9c13124844ebbc
sha256 bdee4edbe7adf842b519a47d964e64b219700b2ba1d7faf4b899e34bd63006b7
ssdeep 98304:4CPL/ezqAMdGUFI6wJ1cak9pnNhtxVHeI30CPFCxfM30pkN7Ij5giDHX:4gL/ezTgA1LkNH+g0zxML7mR
imphash 838dd9fbdbb409224ad0e13122a109ae
impfuzzy 48:hylnpVOIb16mecfYtbMZ0cfGT+KQ4zuFbv:hylpVNb1PecfYtbM6cmgv
  Network IP location

Signature (15cnts)

Level Description
watch Detects the presence of Wine emulator
watch Drops a binary and executes it
watch File has been identified by 18 AntiVirus engines on VirusTotal as malicious
watch Looks for the Windows Idle Time to determine the uptime
watch Resumed a suspended thread in a remote process potentially indicative of process injection
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 executable files on the filesystem
notice Potentially malicious URLs were found in the process memory dump
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice Yara rule detected in process memory
info Checks amount of memory in system
info Collects information to fingerprint the system (MachineGuid
info Queries for the computername

Rules (45cnts)

Level Name Description Collection
danger Win32_Trojan_Emotet_1_Zero Win32 Trojan Emotet binaries (download)
danger Win32_Trojan_Emotet_1_Zero Win32 Trojan Emotet binaries (upload)
watch Antivirus Contains references to security software binaries (download)
watch ASPack_Zero ASPack packed file binaries (download)
watch ASPack_Zero ASPack packed file binaries (upload)
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 Network_Downloader File Downloader binaries (download)
watch Network_Downloader File Downloader binaries (upload)
watch Network_Downloader File Downloader memory
watch UPX_Zero UPX packed file binaries (download)
watch UPX_Zero UPX packed file binaries (upload)
notice Create_Service Create a windows service memory
notice Escalate_priviledges Escalate priviledges memory
notice Generic_PWS_Memory_Zero PWS Memory memory
notice KeyLogger Run a KeyLogger memory
notice Network_DNS Communications use DNS memory
notice Network_HTTP Communications over HTTP memory
notice Network_TCP_Socket Communications over RAW Socket memory
notice Persistence Install itself for autorun at Windows startup memory
notice ScreenShot Take ScreenShot memory
notice Str_Win32_Http_API Match Windows Http API call memory
notice Str_Win32_Internet_API Match Windows Inet API call memory
info anti_dbg Checks if being debugged memory
info bmp_file_format bmp file format binaries (download)
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerException__ConsoleCtrl (no description) memory
info DebuggerException__SetConsoleCtrl (no description) memory
info DebuggerHiding__Active (no description) memory
info DebuggerHiding__Thread (no description) memory
info disable_antivirus Disable AntiVirus memory
info disable_dep Bypass DEP memory
info IsDLL (no description) binaries (download)
info IsPE64 (no description) binaries (download)
info IsPE64 (no description) binaries (upload)
info JPEG_Format_Zero JPEG Format binaries (download)
info Lnk_Format_Zero LNK Format binaries (download)
info OS_Processor_Check_Zero OS Processor Check binaries (download)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info win_hook Affect hook table memory

Network (3cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://6jxbmkpe.torontobotdns.com:44441/ws
whois
US RELIABLESITE 104.194.8.112 clean
6jxbmkpe.torontobotdns.com
whois
US RELIABLESITE 104.194.8.112 clean
172.96.140.157
whois
US RELIABLESITE 172.96.140.157 clean

Suricata ids

ET USER_AGENTS Go HTTP Client User-Agent

PE API

IAT(Import Address Table) Library

KERNEL32.dll
 0x140008018 LoadLibraryA
 0x140008020 lstrcpyA
 0x140008028 lstrcatA
 0x140008030 lstrlenA
 0x140008038 GetSystemDirectoryA
 0x140008040 GetProcAddress
 0x140008048 GetModuleHandleA
 0x140008050 _lclose
 0x140008058 GetModuleFileNameA
 0x140008060 _lread
 0x140008068 _llseek
 0x140008070 _lopen
 0x140008078 _lwrite
 0x140008080 _lcreat
 0x140008088 CreateDirectoryA
 0x140008090 SetCurrentDirectoryA
 0x140008098 GetDiskFreeSpaceA
 0x1400080a0 GetFileAttributesA
 0x1400080a8 CompareStringA
 0x1400080b0 DeleteFileA
 0x1400080b8 GetTempPathA
 0x1400080c0 GetCurrentDirectoryA
 0x1400080c8 CloseHandle
 0x1400080d0 GetExitCodeProcess
 0x1400080d8 GetLastError
 0x1400080e0 LocalFree
 0x1400080e8 GetCurrentProcess
 0x1400080f0 MoveFileExA
 0x1400080f8 GetStringTypeW
 0x140008100 MultiByteToWideChar
 0x140008108 LCMapStringW
 0x140008110 HeapReAlloc
 0x140008118 HeapSize
 0x140008120 IsValidCodePage
 0x140008128 Sleep
 0x140008130 RemoveDirectoryA
 0x140008138 FreeLibrary
 0x140008140 GetOEMCP
 0x140008148 GetACP
 0x140008150 GetModuleHandleW
 0x140008158 ExitProcess
 0x140008160 DecodePointer
 0x140008168 HeapFree
 0x140008170 HeapAlloc
 0x140008178 GetCommandLineA
 0x140008180 GetStartupInfoW
 0x140008188 InitializeCriticalSectionAndSpinCount
 0x140008190 DeleteCriticalSection
 0x140008198 LeaveCriticalSection
 0x1400081a0 EnterCriticalSection
 0x1400081a8 EncodePointer
 0x1400081b0 LoadLibraryW
 0x1400081b8 UnhandledExceptionFilter
 0x1400081c0 SetUnhandledExceptionFilter
 0x1400081c8 IsDebuggerPresent
 0x1400081d0 RtlVirtualUnwind
 0x1400081d8 RtlLookupFunctionEntry
 0x1400081e0 RtlCaptureContext
 0x1400081e8 TerminateProcess
 0x1400081f0 FlsGetValue
 0x1400081f8 FlsSetValue
 0x140008200 FlsFree
 0x140008208 SetLastError
 0x140008210 GetCurrentThreadId
 0x140008218 FlsAlloc
 0x140008220 RtlUnwindEx
 0x140008228 WriteFile
 0x140008230 GetStdHandle
 0x140008238 GetModuleFileNameW
 0x140008240 HeapSetInformation
 0x140008248 GetVersion
 0x140008250 HeapCreate
 0x140008258 FreeEnvironmentStringsW
 0x140008260 WideCharToMultiByte
 0x140008268 GetEnvironmentStringsW
 0x140008270 SetHandleCount
 0x140008278 GetFileType
 0x140008280 QueryPerformanceCounter
 0x140008288 GetTickCount
 0x140008290 GetCurrentProcessId
 0x140008298 GetSystemTimeAsFileTime
 0x1400082a0 GetCPInfo
USER32.dll
 0x1400082c0 TranslateMessage
 0x1400082c8 DispatchMessageA
 0x1400082d0 PeekMessageA
 0x1400082d8 wsprintfA
 0x1400082e0 LoadCursorA
 0x1400082e8 SetCursor
 0x1400082f0 MessageBoxA
 0x1400082f8 MsgWaitForMultipleObjects
ADVAPI32.dll
 0x140008000 GetTokenInformation
 0x140008008 OpenProcessToken
SHELL32.dll
 0x1400082b0 ShellExecuteExA

EAT(Export Address Table) is none


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