r77 | cf4763a34fd6fa5e6807f5334d2c3357c6b80376b4b9d241bdef0fad4b7582c6

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General

Target
cf4763a34fd6fa5e6807f5334d2c3357c6b80376b4b9d241bdef0fad4b7582c6
Size 1.6MB
Sample231109-cdd4ragb83
SHA256 cf4763a34fd6fa5e6807f5334d2c3357c6b80376b4b9d241bdef0fad4b7582c6
MD5 43a0692376ad8324983cf1f5223cb4d2
SHA1 d9d1d3cd415fbf911e288bc879b60e10f5052d8a
SHA512 06a25ede2db453962d42676f8ee565af21e9e0dd244f5377d37f8696682d8399183b7702e8890468f2378404d53df258cf067c889f3e92d130a3cb8c42c7e3c8
SSDEEP 49152:H7iNqiFNFmD3GnXG0QdQ8/XT5XfPPNg1w4:+JFHmDvv/D5HPC17
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
cf4763a34fd6fa5e6807f5334d2c3357c6b80376b4b9d241bdef0fad4b7582c6

File Explorer

cf4763a34fd6fa5e6807f5334d2c3357c6b80376b4b9d241bdef0fad4b7582c6

.exe 1.6MB

cf4763a34fd6fa5e6807f5334d2c3357c6b80376b4b9d241bdef0fad4b7582c6

IMPHASH f78003a09f8e9b522e65e5503ca59aa3
SHA256 cf4763a34fd6fa5e6807f5334d2c3357c6b80376b4b9d241bdef0fad4b7582c6
MD5 43a0692376ad8324983cf1f5223cb4d2
SHA1 d9d1d3cd415fbf911e288bc879b60e10f5052d8a
SHA512 06a25ede2db453962d42676f8ee565af21e9e0dd244f5377d37f8696682d8399183b7702e8890468f2378404d53df258cf067c889f3e92d130a3cb8c42c7e3c8
SSDEEP 49152:H7iNqiFNFmD3GnXG0QdQ8/XT5XfPPNg1w4:+JFHmDvv/D5HPC17
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

268680

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

GetCurrentProcessId GetTempPathW CreateDirectoryW LoadLibraryW GetProcAddress WaitNamedPipeW GetLastError CreateFileW ReadFile WriteFile GetModuleHandleA LoadLibraryA GetPrivateProfileStringW WritePrivateProfileStringW GetModuleHandleW FindResourceW LoadResource SizeofResource LockResource InitializeCriticalSectionEx DeleteCriticalSection DecodePointer GetModuleFileNameW Sleep HeapAlloc HeapFree HeapReAlloc HeapSize GetProcessHeap CreateProcessW GetTickCount GetFileAttributesW LoadLibraryExW FreeLibrary MultiByteToWideChar GetCurrentProcess IsWow64Process SetLastError ResumeThread WaitForSingleObject LocalFree WriteConsoleW SetEnvironmentVariableW FreeEnvironmentStringsW GetEnvironmentStringsW GetCommandLineW MapViewOfFile CreateFileMappingW UnmapViewOfFile CloseHandle GetCommandLineA GetOEMCP GetACP IsValidCodePage FindNextFileW FindFirstFileExW FindClose GetTimeZoneInformation SetStdHandle GetFullPathNameW GetCurrentDirectoryW EnumSystemLocalesW GetUserDefaultLCID IsValidLocale GetLocaleInfoW LCMapStringW CompareStringW GetConsoleMode GetConsoleOutputCP FlushFileBuffers SetFilePointerEx 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 RaiseException RtlUnwindEx RtlPcToFileHeader InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree GetDriveTypeW GetFileInformationByHandle GetFileType PeekNamedPipe SystemTimeToTzSpecificLocalTime FileTimeToSystemTime ExitProcess GetModuleHandleExW CreateThread ExitThread FreeLibraryAndExitThread GetStdHandle

user32

MessageBoxW MessageBoxA SetProcessDPIAware

advapi32

SetEntriesInAclW ConvertStringSidToSidW GetNamedSecurityInfoW SetNamedSecurityInfoW

shell32

SHGetFolderPathW

ole32

CoInitializeEx CoUninitialize

oleaut32

SysFreeString SysAllocString VariantInit SafeArrayCreate SafeArrayAccessData SafeArrayUnaccessData

mscoree

CLRCreateInstance CorBindToRuntime

wininet

InternetOpenUrlA InternetOpenA InternetReadFile

version

VerQueryValueW GetFileVersionInfoW GetFileVersionInfoSizeW

winmm

PlaySoundW

Name

.text

Size

417KB

Virtual Size

417KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

128KB

Virtual Size

128KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

6KB

Virtual Size

14KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

18KB

Virtual Size

18KB

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

1014KB

Virtual Size

1013KB

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

cf4763a34fd6fa5e6807f5334d2c3357c6b80376b4b9d241bdef0fad4b7582c6

kernel32

user32

advapi32

shell32

ole32

oleaut32

mscoree

wininet

version

winmm

generic