r77 | b6838e142a69c7833531d379f5349e3393a87505e87fce88be43b687c7dceb9a

Sharing

Copy URL Twitter E-mail

General

Target
b6838e142a69c7833531d379f5349e3393a87505e87fce88be43b687c7dceb9a
Size 1.3MB
Sample250124-3sqdfawnaj
SHA256 b6838e142a69c7833531d379f5349e3393a87505e87fce88be43b687c7dceb9a
MD5 412062c16487989312ff81269b1a4848
SHA1 d0f9e57706c4dc986c6c05a728fbbe591a253695
SHA512 6317193c21ca288968b314fa248dcbb8543733b6cd3cd4fdbc64f313536ba27f31d120af021dd4a2b09aa6097469c9f190611fe609e402e987dd205894abacaa
SSDEEP 24576:SuRRjq45RYz698NPWxBLudQCbJ74A9WDSPX7j:tRu4rYzgIQL+xV77917j
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
b6838e142a69c7833531d379f5349e3393a87505e87fce88be43b687c7dceb9a

File Explorer

b6838e142a69c7833531d379f5349e3393a87505e87fce88be43b687c7dceb9a

.exe 1.3MB

b6838e142a69c7833531d379f5349e3393a87505e87fce88be43b687c7dceb9a

IMPHASH 427e0821e5ec79f831a26d9906e5610b
SHA256 b6838e142a69c7833531d379f5349e3393a87505e87fce88be43b687c7dceb9a
MD5 412062c16487989312ff81269b1a4848
SHA1 d0f9e57706c4dc986c6c05a728fbbe591a253695
SHA512 6317193c21ca288968b314fa248dcbb8543733b6cd3cd4fdbc64f313536ba27f31d120af021dd4a2b09aa6097469c9f190611fe609e402e987dd205894abacaa
SSDEEP 24576:SuRRjq45RYz698NPWxBLudQCbJ74A9WDSPX7j:tRu4rYzgIQL+xV77917j
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

208016

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

user32

MessageBoxA MessageBoxW

advapi32

SetEntriesInAclW ConvertStringSidToSidW GetNamedSecurityInfoW SetNamedSecurityInfoW

shell32

SHGetFolderPathW

oleaut32

SafeArrayCreate SafeArrayAccessData SafeArrayUnaccessData SafeArrayCreateVector SafeArrayDestroy

mscoree

CorBindToRuntime CLRCreateInstance

wininet

InternetReadFile InternetOpenUrlA InternetOpenA

version

GetFileVersionInfoSizeW GetFileVersionInfoW VerQueryValueW

winmm

PlaySoundW

Name

.text

Size

363KB

Virtual Size

363KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

123KB

Virtual Size

122KB

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

17KB

Virtual Size

16KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

_RDATA

Size

512B

Virtual Size

252B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

857KB

Virtual Size

857KB

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

b6838e142a69c7833531d379f5349e3393a87505e87fce88be43b687c7dceb9a

kernel32

user32

advapi32

shell32

oleaut32

mscoree

wininet

version

winmm

generic