r77 | 5cd31b6b03a0f88a9a7f352b2601cfc29556d0d62f494e8b2d2c5a159e9edf3f

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General

Target
5cd31b6b03a0f88a9a7f352b2601cfc29556d0d62f494e8b2d2c5a159e9edf3f
Size 1.6MB
Sample231019-vyb41ahe2w
SHA256 5cd31b6b03a0f88a9a7f352b2601cfc29556d0d62f494e8b2d2c5a159e9edf3f
MD5 807f44b71cf029e755a22c56b503f51d
SHA1 53ed08485de352e14c554147b4c909c9ad0959fc
SHA512 3241deae6e51cab0353f92a8bc3ada5ec8eabc1166bc856f1905652900ccd5ac797ace48926d58f2b0be02271f4e95b10608ba8cc5ef2597d1666ac4f937e437
SSDEEP 49152:SJoeWVP/PZm8RQB8otH9Fk4Y37XXT5Xja91:IG3Bj88UdbYbD5Ta91
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
5cd31b6b03a0f88a9a7f352b2601cfc29556d0d62f494e8b2d2c5a159e9edf3f

File Explorer

5cd31b6b03a0f88a9a7f352b2601cfc29556d0d62f494e8b2d2c5a159e9edf3f

.exe 1.6MB

5cd31b6b03a0f88a9a7f352b2601cfc29556d0d62f494e8b2d2c5a159e9edf3f

IMPHASH 64df30a69706015f6d8b5ade32a974e3
SHA256 5cd31b6b03a0f88a9a7f352b2601cfc29556d0d62f494e8b2d2c5a159e9edf3f
MD5 807f44b71cf029e755a22c56b503f51d
SHA1 53ed08485de352e14c554147b4c909c9ad0959fc
SHA512 3241deae6e51cab0353f92a8bc3ada5ec8eabc1166bc856f1905652900ccd5ac797ace48926d58f2b0be02271f4e95b10608ba8cc5ef2597d1666ac4f937e437
SSDEEP 49152:SJoeWVP/PZm8RQB8otH9Fk4Y37XXT5Xja91:IG3Bj88UdbYbD5Ta91
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

469568

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

UnmapViewOfFile GetProcAddress LoadLibraryW CreateFileW ReadFile WriteFile GetLastError WaitNamedPipeW GetModuleHandleA LoadLibraryA GetPrivateProfileStringW WritePrivateProfileStringW GetModuleHandleW LoadResource LockResource SizeofResource FindResourceW GetTempPathW DecodePointer HeapAlloc HeapReAlloc HeapFree HeapSize MapViewOfFile InitializeCriticalSectionEx DeleteCriticalSection CreateProcessW GetTickCount GetModuleFileNameW GetFileAttributesW FreeLibrary LoadLibraryExW MultiByteToWideChar GetCurrentProcess GetTickCount64 IsWow64Process SetLastError WaitForSingleObject ResumeThread CreateDirectoryW LocalFree WriteConsoleW SetStdHandle FreeEnvironmentStringsW GetEnvironmentStringsW CreateFileMappingW GetCurrentProcessId Sleep GetProcessHeap CloseHandle GetCommandLineW GetCommandLineA FindNextFileW FindFirstFileExW FindClose GetOEMCP GetACP IsValidCodePage SetFilePointerEx GetConsoleMode GetConsoleOutputCP FlushFileBuffers EnumSystemLocalesW GetUserDefaultLCID IsValidLocale GetLocaleInfoW LCMapStringW GetFileType GetStdHandle ReleaseSRWLockExclusive AcquireSRWLockExclusive TryAcquireSRWLockExclusive GetCurrentThreadId WideCharToMultiByte WaitForSingleObjectEx GetExitCodeThread GetStringTypeW EnterCriticalSection LeaveCriticalSection QueryPerformanceCounter EncodePointer CompareStringEx GetCPInfo LCMapStringEx WakeAllConditionVariable SleepConditionVariableSRW FlsAlloc FlsGetValue FlsSetValue FlsFree GetSystemTimeAsFileTime RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind UnhandledExceptionFilter SetUnhandledExceptionFilter TerminateProcess IsProcessorFeaturePresent IsDebuggerPresent GetStartupInfoW InitializeSListHead OutputDebugStringW RaiseException RtlPcToFileHeader RtlUnwindEx InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree ExitProcess GetModuleHandleExW CreateThread ExitThread FreeLibraryAndExitThread

user32

SetProcessDPIAware MessageBoxA MessageBoxW

advapi32

SetNamedSecurityInfoW GetNamedSecurityInfoW SetEntriesInAclW ConvertStringSidToSidW

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

615KB

Virtual Size

614KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

213KB

Virtual Size

212KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

8KB

Virtual Size

18KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

24KB

Virtual Size

23KB

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

815KB

Virtual Size

815KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

3KB

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

5cd31b6b03a0f88a9a7f352b2601cfc29556d0d62f494e8b2d2c5a159e9edf3f

kernel32

user32

advapi32

shell32

ole32

oleaut32

mscoree

wininet

version

winmm

generic