r77 | ef534c72b800286824af370f3b98c75120a55d87b65e2bffba8d2ba0ab32a070

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General

Target
ef534c72b800286824af370f3b98c75120a55d87b65e2bffba8d2ba0ab32a070
Size 1.3MB
Sample231225-nrw29secbl
SHA256 ef534c72b800286824af370f3b98c75120a55d87b65e2bffba8d2ba0ab32a070
MD5 04987587e8f891e823ca06ede62e454a
SHA1 7d74167f4f3b63e26f104756e3d19984bac84302
SHA512 23f42ae9725046de089217f1339ac5453c5faa2238c7794321de9ebacf22d0ecec9e2d433e9c216bcd04dab4fd688ec8c57c0be34b8b810841f73edd0f8f46a8
SSDEEP 24576:X6xN+8MWt5Qogm3rtNjR01iSGGvuBa4pyakDSVXT5X0vhA:X6g8MWt5Q3m3rtui3wuE4p1pXT5X0v2
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
ef534c72b800286824af370f3b98c75120a55d87b65e2bffba8d2ba0ab32a070

File Explorer

ef534c72b800286824af370f3b98c75120a55d87b65e2bffba8d2ba0ab32a070

.exe 1.3MB

ef534c72b800286824af370f3b98c75120a55d87b65e2bffba8d2ba0ab32a070

IMPHASH adb02acf3bcefc32e54e67219f867991
SHA256 ef534c72b800286824af370f3b98c75120a55d87b65e2bffba8d2ba0ab32a070
MD5 04987587e8f891e823ca06ede62e454a
SHA1 7d74167f4f3b63e26f104756e3d19984bac84302
SHA512 23f42ae9725046de089217f1339ac5453c5faa2238c7794321de9ebacf22d0ecec9e2d433e9c216bcd04dab4fd688ec8c57c0be34b8b810841f73edd0f8f46a8
SSDEEP 24576:X6xN+8MWt5Qogm3rtNjR01iSGGvuBa4pyakDSVXT5X0vhA:X6g8MWt5Q3m3rtui3wuE4p1pXT5X0v2
MD5 SHA1 SHA512 SSDEEP

windows:6 windows x64 arch: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

212008

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 LoadLibraryW GetProcAddress WaitNamedPipeW GetLastError CreateFileW ReadFile WriteFile GetModuleHandleA LoadLibraryA GetPrivateProfileStringW WritePrivateProfileStringW GetModuleHandleW FindResourceW LoadResource SizeofResource LockResource InitializeCriticalSectionEx DeleteCriticalSection DecodePointer GetModuleFileNameW HeapAlloc Sleep HeapReAlloc HeapSize GetProcessHeap CreateProcessW GetTickCount GetTempPathW GetFileAttributesW LoadLibraryExW FreeLibrary MultiByteToWideChar GetCurrentProcess IsWow64Process SetLastError ResumeThread WaitForSingleObject LocalFree CreateDirectoryW WriteConsoleW SetEnvironmentVariableW FreeEnvironmentStringsW GetEnvironmentStringsW GetCommandLineW MapViewOfFile CreateFileMappingW UnmapViewOfFile HeapFree 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 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

350KB

Virtual Size

349KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

115KB

Virtual Size

114KB

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

16KB

Virtual Size

15KB

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

801KB

Virtual Size

800KB

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

ef534c72b800286824af370f3b98c75120a55d87b65e2bffba8d2ba0ab32a070

kernel32

user32

advapi32

shell32

ole32

oleaut32

mscoree

wininet

version

winmm

generic