r77 | e4641ee9ed34d20ff5d7b25172ad155448e3a7b1d0d0e540f1331b829c92acfc

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General

Target
e4641ee9ed34d20ff5d7b25172ad155448e3a7b1d0d0e540f1331b829c92acfc
Size 1.6MB
Sample231020-dssfcsde61
SHA256 e4641ee9ed34d20ff5d7b25172ad155448e3a7b1d0d0e540f1331b829c92acfc
MD5 c1c83a6ec8f77f4934477fef45e83edb
SHA1 7d265d547bd4690295d94be386eed716158bfd6f
SHA512 7e034a6b4b9eab5130a4b0835ec5eb3fc0d83c9f88633de4a0ca3cd97dbcada3c834557d0b5c58458c90ff80711bbf3d41aeaac6ad9a9586e1f83c11bc2bb1a7
SSDEEP 24576:kb+mdoU7ihtmQikThxF+2mLzbaLaPECkDtGQjnEdGDSVXT5Xs5:kymdoU+tmNAhSFLHa8/kwonUXT5Xs5
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

r77

Malware Config

Signatures

R77 family
r77

r77 rootkit payload 1 IoCs

Detects the payload of the r77 rootkit.

resource	yara_rule
sample	r77_payload

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
e4641ee9ed34d20ff5d7b25172ad155448e3a7b1d0d0e540f1331b829c92acfc

File Explorer

e4641ee9ed34d20ff5d7b25172ad155448e3a7b1d0d0e540f1331b829c92acfc

.exe 1.6MB

e4641ee9ed34d20ff5d7b25172ad155448e3a7b1d0d0e540f1331b829c92acfc

IMPHASH 64f3654afd4c6c9f85255b02757e4c15
SHA256 e4641ee9ed34d20ff5d7b25172ad155448e3a7b1d0d0e540f1331b829c92acfc
MD5 c1c83a6ec8f77f4934477fef45e83edb
SHA1 7d265d547bd4690295d94be386eed716158bfd6f
SHA512 7e034a6b4b9eab5130a4b0835ec5eb3fc0d83c9f88633de4a0ca3cd97dbcada3c834557d0b5c58458c90ff80711bbf3d41aeaac6ad9a9586e1f83c11bc2bb1a7
SSDEEP 24576:kb+mdoU7ihtmQikThxF+2mLzbaLaPECkDtGQjnEdGDSVXT5Xs5:kymdoU+tmNAhSFLHa8/kwonUXT5Xs5
MD5 SHA1 SHA512 SSDEEP

windows:6 windows x64

r77 rootkit payload

Detects the payload of the r77 rootkit.
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

247296

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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

kernel32

CloseHandle Sleep GetCurrentProcessId CreateFileMappingW MapViewOfFile UnmapViewOfFile GetProcAddress LoadLibraryW CreateFileW ReadFile WriteFile GetLastError WaitNamedPipeW GetModuleHandleA LoadLibraryA GetPrivateProfileStringW WritePrivateProfileStringW GetModuleHandleW LoadResource LockResource SizeofResource FindResourceW GetTempPathW DecodePointer HeapAlloc HeapReAlloc HeapFree HeapSize GetProcessHeap InitializeCriticalSectionEx DeleteCriticalSection CreateProcessW GetTickCount GetModuleFileNameW GetFileAttributesW FreeLibrary LoadLibraryExW MultiByteToWideChar GetCurrentProcess IsWow64Process SetLastError GetFileSizeEx WaitForSingleObject ResumeThread CreateDirectoryW RaiseException WriteConsoleW SetEnvironmentVariableW FreeEnvironmentStringsW GetEnvironmentStringsW GetCommandLineW GetCommandLineA GetOEMCP GetACP IsValidCodePage FindNextFileW FindFirstFileExW FindClose GetTimeZoneInformation SetStdHandle GetFullPathNameW GetCurrentDirectoryW SetFilePointerEx GetConsoleMode GetConsoleOutputCP FlushFileBuffers EnumSystemLocalesW GetUserDefaultLCID IsValidLocale GetLocaleInfoW LCMapStringW CompareStringW LocalFree WideCharToMultiByte GetStringTypeW WaitForSingleObjectEx GetCurrentThreadId GetExitCodeThread ReleaseSRWLockExclusive AcquireSRWLockExclusive TryAcquireSRWLockExclusive EnterCriticalSection LeaveCriticalSection EncodePointer LCMapStringEx QueryPerformanceCounter CompareStringEx GetCPInfo FlsAlloc FlsGetValue FlsSetValue FlsFree GetSystemTimeAsFileTime RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind UnhandledExceptionFilter SetUnhandledExceptionFilter TerminateProcess IsProcessorFeaturePresent IsDebuggerPresent GetStartupInfoW InitializeSListHead OutputDebugStringW RtlPcToFileHeader RtlUnwindEx InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree ExitProcess GetModuleHandleExW GetDriveTypeW GetFileInformationByHandle GetFileType PeekNamedPipe SystemTimeToTzSpecificLocalTime FileTimeToSystemTime CreateThread ExitThread FreeLibraryAndExitThread GetStdHandle

user32

SetProcessDPIAware MessageBoxA MessageBoxW

shell32

SHGetFolderPathW

ole32

CoInitializeEx CoUninitialize

oleaut32

SysAllocString SysFreeString SafeArrayCreate SafeArrayAccessData SafeArrayUnaccessData VariantInit

mscoree

CorBindToRuntime CLRCreateInstance

wininet

InternetReadFile InternetOpenUrlA InternetOpenA HttpQueryInfoA

version

VerQueryValueW GetFileVersionInfoW GetFileVersionInfoSizeW

winmm

PlaySoundW

Name

.text

Size

394KB

Virtual Size

394KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

146KB

Virtual Size

146KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

14KB

Virtual Size

22KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

16KB

Virtual Size

16KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

_RDATA

Size

512B

Virtual Size

348B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

1019KB

Virtual Size

1019KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

3KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

e4641ee9ed34d20ff5d7b25172ad155448e3a7b1d0d0e540f1331b829c92acfc

kernel32

user32

shell32

ole32

oleaut32

mscoree

wininet

version

winmm

generic