meshagent | 2024-10-08_d53ac23694f1aee8034331524b024832_ryuk_sliver

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General

Target
2024-10-08_d53ac23694f1aee8034331524b024832_ryuk_sliver
Size 3.0MB
Sample241008-bfp4cs1crm
SHA256 9b65527a803e52a9d7f4adbe8ad6e7fa404c352a9ed80955a6e263539ff23e39
MD5 d53ac23694f1aee8034331524b024832
SHA1 cac113c522b5d9817ef408b52e50d9c36a2ce9a4
SHA512 c13d381f2c5268fa61fd7d124b0baa0a85b440be428a83351b7e36be22540362ec6fdd29e209e26a14adc5f381b6b005ddeb0cb7a534df9e19ecdbcaf61821a4
SSDEEP 49152:a0yAXvucS6SnbZVlxyZH0XAaCx5OX9ZO/xtEfOfzMFvfDTtKjkVE+ubDw8litYY:5vg6ClrBCjec+OfAK7DuYY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

june 2022 meshagent

Malware Config

Extracted

Family

meshagent

Version

Botnet

JUNE 2022

http://ec2-52-66-245-53.ap-south-1.compute.amazonaws.com:443/agent.ashx

Attributes

mesh_id
0xA9B8E2170A5547D0BCF991A95B3BCC8EAFFC541CD49DFE9F84D3E38581378EB043840732B3889D09EA0E9B7E2556B9AB
server_id
75FD2036FEA22F3C988ED804CC808E502BD496E961D6368715A60B02C93882CECC137D0630744C7CE491809EDFAFAF77
wss
wss://ec2-52-66-245-53.ap-south-1.compute.amazonaws.com:443/agent.ashx

Signatures

Detects MeshAgent payload 1 IoCs

resource	yara_rule
sample	family_meshagent

Meshagent family
meshagent

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-10-08_d53ac23694f1aee8034331524b024832_ryuk_sliver

File Explorer

2024-10-08_d53ac23694f1aee8034331524b024832_ryuk_sliver

.exe 3.0MB

2024-10-08_d53ac23694f1aee8034331524b024832_ryuk_sliver

IMPHASH de9d50d41586565d7f7d04f9c85905a2
SHA256 9b65527a803e52a9d7f4adbe8ad6e7fa404c352a9ed80955a6e263539ff23e39
MD5 d53ac23694f1aee8034331524b024832
SHA1 cac113c522b5d9817ef408b52e50d9c36a2ce9a4
SHA512 c13d381f2c5268fa61fd7d124b0baa0a85b440be428a83351b7e36be22540362ec6fdd29e209e26a14adc5f381b6b005ddeb0cb7a534df9e19ecdbcaf61821a4
SSDEEP 49152:a0yAXvucS6SnbZVlxyZH0XAaCx5OX9ZO/xtEfOfzMFvfDTtKjkVE+ubDw8litYY:5vg6ClrBCjec+OfAK7DuYY
MD5 SHA1 SHA512 SSDEEP

windows:6 windows x64 arch:x64

Detects MeshAgent payload
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

1889180

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

C:\MeshAgent\MeshAgent\Release\MeshService64.pdb

dbghelp

MiniDumpWriteDump SymFromAddr StackWalk64 SymInitialize SymFunctionTableAccess64 SymGetLineFromAddr64 SymGetModuleBase64

iphlpapi

GetAdaptersAddresses SendARP ConvertLengthToIpv4Mask GetAdaptersInfo

ws2_32

ntohl WSAGetLastError ioctlsocket recv gethostname htonl htons ntohs WSASetLastError send getsockname WSASocketW listen closesocket bind accept __WSAFDIsSet setsockopt socket sendto getsockopt recvfrom connect shutdown WSAIoctl GetAddrInfoW WSAResetEvent WSAEventSelect WSAStartup WSACreateEvent WSACloseEvent select WSACleanup FreeAddrInfoW

crypt32

CertEnumCertificatesInStore CertDeleteCertificateFromStore CryptAcquireCertificatePrivateKey CertAddEncodedCertificateToStore CryptMsgClose CryptMsgUpdate CryptExportPublicKeyInfo CertCreateSelfSignCertificate CertFreeCertificateContext CryptMsgOpenToEncode CertAddCertificateContextToStore PFXExportCertStore CryptSignAndEncodeCertificate CertCloseStore CertStrToNameA CryptMsgGetParam CryptEncodeObject CertSetCertificateContextProperty CertFindCertificateInStore CryptMsgCalculateEncodedLength CertOpenStore CertStrToNameW CertDuplicateCertificateContext CertGetCertificateContextProperty

gdiplus

GdipGetImageEncoders GdipCloneImage GdiplusStartup GdipAlloc GdipDisposeImage GdipFree GdipGetImageEncodersSize GdipSaveImageToStream GdiplusShutdown GdipLoadImageFromStream

ncrypt

NCryptCreatePersistedKey NCryptFreeObject NCryptFinalizeKey BCryptOpenAlgorithmProvider NCryptOpenStorageProvider BCryptGenRandom NCryptSetProperty BCryptCloseAlgorithmProvider

kernel32

InitializeSListHead GetStartupInfoW RtlUnwindEx GetFullPathNameW GetStdHandle WriteFile LoadLibraryExA GetModuleFileNameW GetSystemPowerStatus OpenProcess MultiByteToWideChar Sleep GetLastError CloseHandle GetCurrentDirectoryW SetCurrentDirectoryW GetProcAddress SetEnvironmentVariableA CreateProcessW FreeLibrary WideCharToMultiByte WaitForSingleObject GetCurrentThreadId GetModuleHandleA CreateThread QueueUserAPC OpenThread ReadFile LoadLibraryA SleepEx SetSystemPowerState GetCurrentProcess SetThreadExecutionState HeapFree HeapAlloc GetProcessHeap SystemTimeToFileTime GetSystemTime FileTimeToSystemTime QueryPerformanceFrequency QueryPerformanceCounter ReleaseSemaphore CreateSemaphoreA CancelIo FindFirstFileW FindNextFileW RemoveDirectoryW GetFinalPathNameByHandleW GetDriveTypeA SetFilePointer FindFirstVolumeA FindClose CreateFileW GetVolumePathNamesForVolumeNameA GetFileAttributesExW ReadDirectoryChangesW FindNextVolumeA FindVolumeClose GetDiskFreeSpaceExA CreateEventA GetModuleHandleExA WaitForMultipleObjectsEx CreateNamedPipeA DisconnectNamedPipe CreateFileA CancelIoEx LocalFree ConnectNamedPipe SetConsoleOutputCP IsDebuggerPresent TerminateProcess GetTempPathW CancelSynchronousIo SetEvent WaitForSingleObjectEx ResetEvent GetThreadId GetCurrentProcessId IsProcessorFeaturePresent FreeEnvironmentStringsA CopyFileW RtlCaptureContext SuspendThread ResumeThread DuplicateHandle GetTickCount64 GetCurrentThread GetOverlappedResult GetThreadContext WTSGetActiveConsoleSessionId GetExitCodeProcess SetEndOfFile DeleteFileW SetFilePointerEx SetConsoleCtrlHandler FreeConsole LoadLibraryExW SetLastError GetFileType GetModuleHandleW SwitchToFiber DeleteFiber CreateFiber GetSystemTimeAsFileTime EncodePointer ConvertThreadToFiber GetEnvironmentVariableW GetConsoleMode ReadConsoleA ReadConsoleW SetConsoleMode EnterCriticalSection LeaveCriticalSection DeleteCriticalSection InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree ExitProcess GetModuleHandleExW CreateDirectoryW GetConsoleCP MoveFileExW SetEnvironmentVariableW GetTimeZoneInformation SetStdHandle GetDriveTypeW PeekNamedPipe GetCommandLineA GetCommandLineW GetACP GetDateFormatW GetTimeFormatW CompareStringW LCMapStringW GetStringTypeW HeapReAlloc FlushFileBuffers WriteConsoleW GetCPInfo FindFirstFileExW SetUnhandledExceptionFilter RtlLookupFunctionEntry RtlVirtualUnwind GetEnvironmentStrings UnhandledExceptionFilter IsValidCodePage GetOEMCP GetEnvironmentStringsW FreeEnvironmentStringsW RaiseException HeapSize RtlPcToFileHeader SystemTimeToTzSpecificLocalTime ConvertFiberToThread

user32

EndDialog SetWindowTextW GetWindowPlacement ShowWindow SetWindowPlacement SetWindowTextA GetDlgItem DialogBoxParamW EnableWindow MessageBeep ExitWindowsEx GetUserObjectInformationA EnumDisplayMonitors GetSystemMetrics SetThreadDesktop GetThreadDesktop CloseDesktop BlockInput GetMonitorInfoA OpenInputDesktop GetKeyState GetMessageA GetMessageExtraInfo SendMessageW LoadCursorA DestroyWindow GetDC PostMessageA GetIconInfo CallNextHookEx GetCursorInfo SetWindowsHookExA MapVirtualKeyA GetForegroundWindow UnhookWindowsHookEx DefWindowProcA CreateWindowExA TranslateMessage UnregisterClassA DrawIconEx SetWinEventHook RegisterClassExA UnhookWinEvent SetForegroundWindow ReleaseDC SendInput SetProcessDPIAware GetWindowRect GetProcessWindowStation GetUserObjectInformationW MessageBoxW DispatchMessageA

gdi32

GetStockObject SetTextColor SetBkMode CreateSolidBrush BitBlt StretchBlt DeleteDC CreateCompatibleDC SetStretchBltMode CreateCompatibleBitmap GetObjectA DeleteObject GetDIBits SelectObject

advapi32

QueryServiceStatus RegisterEventSourceW DeregisterEventSource CryptEnumProvidersW CryptSignHashW CryptDestroyHash CryptCreateHash CryptDecrypt CryptExportKey CryptGetUserKey CryptGetProvParam CryptSetHashParam CryptAcquireContextW RegDeleteValueA RegCreateKeyW RegOpenKeyExA RegSetValueExA RegQueryValueExA RegDeleteKeyA RegCloseKey OpenProcessToken InitiateSystemShutdownA LookupPrivilegeValueA AdjustTokenPrivileges CryptReleaseContext RegSetValueExW CryptDestroyKey InitializeSecurityDescriptor SetEntriesInAclA SetSecurityDescriptorDacl DuplicateTokenEx CreateProcessAsUserW SetTokenInformation OpenServiceA CheckTokenMembership FreeSid RegisterServiceCtrlHandlerExA OpenSCManagerA SetServiceStatus AllocateAndInitializeSid CloseServiceHandle StartServiceCtrlDispatcherA ReportEventW

shell32

ShellExecuteExW

ole32

CoUninitialize CoInitializeEx CoCreateInstance CreateStreamOnHGlobal

oleaut32

SysFreeString SysStringLen SysAllocString

Name

.text

Size

2.0MB

Virtual Size

2.0MB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

902KB

Virtual Size

902KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

34KB

Virtual Size

194KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

101KB

Virtual Size

100KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.gfids

Size

512B

Virtual Size

196B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

2KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

19KB

Virtual Size

18KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

File Explorer

2024-10-08_d53ac23694f1aee8034331524b024832_ryuk_sliver

dbghelp

iphlpapi

ws2_32

crypt32

gdiplus

ncrypt

kernel32

user32

gdi32

advapi32

shell32

ole32

oleaut32

generic