meshagent | meshagent64-SonstigeRechnerCB[.]exe

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General

Target
meshagent64-SonstigeRechnerCB.exe
Size 3.3MB
Sample261030-m7e81sysas
SHA256 6d2355058ca7c3be7ac8ac16816a78c89d1df75f9354a024213fc85f52ce5112
MD5 1a3e7168f4cfee74a79973ff97a7f657
SHA1 1b19f8331313b7a448b0cad4bb722d2ac706c00c
SHA512 8814923065ca773f06012b7c5c6cbf2b8dd4edb7502c695d6621aab38a641ab18194c275c3b1bf3cbedd88650c6bfc21625e916f5a79143b7e66ce367821c1f9
SSDEEP 49152:VMSGj9zai9bsddr7AaPcZumeRQyKpzSPQBcnMFvf8AC4Z78bRwlI5fz:ed9AddBcryO3cICgI9z
TLSH
T17BF57CD2A7A600E8E977F23CC9568517E7F2B81713709BCF25A44A660F236D12B3E741
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

sonstige rechner cb rat trojan backdoor meshagent

Malware Config

Extracted

Family

meshagent

Version

Botnet

Sonstige Rechner CB

http://mesh.edelstoff-media.de:443/agent.ashx

Attributes

mesh_id
0xFB4BFCDB577562FB65FEE385CAB69841B8E4B8F9023E5A404D9BB60C11B2137BAED5FC67D0680C580E341095A9BA1BDB
server_id
2CB41567F4ED50AAAF670A04FB47E1B6A3498D4725ADE5EFD3BB4E2EE083000EA948C20A7C3943C829562C01B86D1E27
wss
wss://mesh.edelstoff-media.de:443/agent.ashx

Signatures

Family: MeshAgent
MeshAgent is an open source remote access trojan written in C++.
rat trojan backdoor meshagent

Detects MeshAgent payload 1 IoCs

resource	yara_rule
sample	family_meshagent

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
meshagent64-SonstigeRechnerCB.exe

File Explorer

meshagent64-SonstigeRechnerCB.exe

.exe 3.3MB

meshagent64-SonstigeRechnerCB.exe

IMPHASH 1beb656f21b9419cba7deef0272fc88b
SHA256 6d2355058ca7c3be7ac8ac16816a78c89d1df75f9354a024213fc85f52ce5112
MD5 1a3e7168f4cfee74a79973ff97a7f657
SHA1 1b19f8331313b7a448b0cad4bb722d2ac706c00c
SHA512 8814923065ca773f06012b7c5c6cbf2b8dd4edb7502c695d6621aab38a641ab18194c275c3b1bf3cbedd88650c6bfc21625e916f5a79143b7e66ce367821c1f9
SSDEEP 49152:VMSGj9zai9bsddr7AaPcZumeRQyKpzSPQBcnMFvf8AC4Z78bRwlI5fz:ed9AddBcryO3cICgI9z
TLSH
T17BF57CD2A7A600E8E977F23CC9568517E7F2B81713709BCF25A44A660F236D12B3E741
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Detects MeshAgent payload
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

1942108

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:\Users\Default.DESKTOP-9CGK2DI\Desktop\AmtWebApp\MeshAgent\Release\MeshService64.pdb

comctl32

InitCommonControlsEx

dbghelp

SymInitialize SymGetModuleBase64 SymGetLineFromAddr64 SymFunctionTableAccess64 SymFromAddr StackWalk64 MiniDumpWriteDump

iphlpapi

GetAdaptersAddresses SendARP ConvertLengthToIpv4Mask GetAdaptersInfo

ws2_32

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

crypt32

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

gdiplus

GdipGetImageEncoders GdiplusShutdown GdipCloneImage GdipAlloc GdipDisposeImage GdipFree GdipGetImageEncodersSize GdipLoadImageFromStream GdipSaveImageToStream GdiplusStartup

ncrypt

NCryptCreatePersistedKey NCryptSetProperty NCryptFreeObject BCryptCloseAlgorithmProvider BCryptGenRandom NCryptOpenStorageProvider BCryptOpenAlgorithmProvider NCryptFinalizeKey

kernel32

InitializeSListHead GetStartupInfoW RtlUnwindEx GetFullPathNameW GetStdHandle WriteFile LoadLibraryExA GetModuleFileNameW GetSystemPowerStatus OpenProcess MultiByteToWideChar Sleep GetLastError CloseHandle GetCurrentDirectoryW SetCurrentDirectoryW GetProcAddress SetEnvironmentVariableA CreateProcessW FreeLibrary WideCharToMultiByte GetCurrentThreadId GetModuleHandleA WaitForSingleObjectEx CreateThread QueueUserAPC OpenThread ReadFile LoadLibraryA SleepEx SetSystemPowerState GetCurrentProcess SetThreadExecutionState HeapFree HeapAlloc GetProcessHeap SystemTimeToFileTime EnterCriticalSection FileTimeToSystemTime QueryPerformanceFrequency SystemTimeToTzSpecificLocalTime QueryPerformanceCounter ReleaseSemaphore WaitForSingleObject 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 SetConsoleMode GetConsoleMode SetConsoleOutputCP IsDebuggerPresent TerminateProcess GetTempPathW CancelSynchronousIo SetEvent IsProcessorFeaturePresent GetThreadId GetCurrentProcessId GetEnvironmentStrings 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 ConvertFiberToThread ConvertThreadToFiber GetEnvironmentVariableW ReadConsoleA ReadConsoleW 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 ResetEvent UnhandledExceptionFilter IsValidCodePage GetOEMCP GetEnvironmentStringsW FreeEnvironmentStringsW RaiseException HeapSize RtlPcToFileHeader GetSystemTime EncodePointer

user32

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

gdi32

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

advapi32

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

shell32

ShellExecuteExW

ole32

CoUninitialize CoInitializeEx CreateStreamOnHGlobal

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

993KB

Virtual Size

992KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

39KB

Virtual Size

201KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

102KB

Virtual Size

101KB

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

136KB

Virtual Size

136KB

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

meshagent64-SonstigeRechnerCB.exe

comctl32

dbghelp

iphlpapi

ws2_32

crypt32

gdiplus

ncrypt

kernel32

user32

gdi32

advapi32

shell32

ole32

generic