2024-04-30_6cfa4756dbe273027480865574f9bd42_ryuk

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General

Target

2024-04-30_6cfa4756dbe273027480865574f9bd42_ryuk
Size

3.2MB
MD5

6cfa4756dbe273027480865574f9bd42
SHA1

cf31c9cd4e6f4eae7bd70208e168655db0e20abf
SHA256

67ecceb2154f46edf06ea28c91bcaeef690a31ec9064f77db4a6e4d9d21b480b
SHA512

aba23c8e73a7a652a28bf939b6c60a21dc035474313fea8baa2d269eb9e54704b32034e045613a0959d47ba9ff212822f83238cc71f566f5c9cb1130a72315ae
SSDEEP

49152:npy98CxjjjsdXWr3/rIes60H7veIoo1Ip7bHJUiWw0:CmvKbHih

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-30_6cfa4756dbe273027480865574f9bd42_ryuk

Files

2024-04-30_6cfa4756dbe273027480865574f9bd42_ryuk
.exe windows:5 windows x64 arch:x64

0a602922010018ba28d65eb7db35d620

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

nacl64.exe.pdb

Imports

advapi32

AccessCheck
ConvertSidToStringSidW
ConvertStringSecurityDescriptorToSecurityDescriptorW
ConvertStringSidToSidW
CopySid
CreateProcessAsUserW
CreateRestrictedToken
CreateWellKnownSid
DuplicateToken
DuplicateTokenEx
EqualSid
EventRegister
EventUnregister
EventWrite
FreeSid
GetAce
GetKernelObjectSecurity
GetLengthSid
GetNamedSecurityInfoW
GetSecurityDescriptorSacl
GetSecurityInfo
GetSidSubAuthority
GetTokenInformation
ImpersonateLoggedOnUser
InitializeAcl
InitializeSecurityDescriptor
InitializeSid
IsValidSid
LookupPrivilegeValueW
MapGenericMask
OpenProcessToken
RegCloseKey
RegCreateKeyExW
RegDisablePredefinedCache
RegOpenKeyExW
RegQueryValueExW
RevertToSelf
SetEntriesInAclW
SetKernelObjectSecurity
SetSecurityDescriptorDacl
SetSecurityInfo
SetThreadToken
SetTokenInformation
SystemFunction036

dbghelp

SymCleanup
SymFromAddr
SymGetLineFromAddr64
SymGetSearchPathW
SymInitialize
SymSetOptions
SymSetSearchPathW

user32

AllowSetForegroundWindow
CloseDesktop
CloseWindowStation
CreateDesktopW
CreateWindowExW
CreateWindowStationW
DefWindowProcW
DestroyWindow
DispatchMessageW
GetProcessWindowStation
GetQueueStatus
GetSystemMetrics
GetThreadDesktop
GetUserObjectInformationW
GetWindowLongPtrW
KillTimer
MessageBoxW
MsgWaitForMultipleObjectsEx
PeekMessageW
PostMessageW
PostQuitMessage
RegisterClassExW
SetProcessWindowStation
SetTimer
SetWindowLongPtrW
TranslateMessage
UnregisterClassW
wsprintfW

ws2_32

WSACleanup
WSACloseEvent
WSACreateEvent
WSAEventSelect
WSAGetLastError
WSAStartup
accept
bind
closesocket
gethostbyname
getsockname
htonl
htons
listen
ntohs
recv
select
send
setsockopt
shutdown
socket

kernel32

AcquireSRWLockExclusive
AllocConsole
AssignProcessToJobObject
AttachConsole
CancelIo
CloseHandle
CompareStringW
ConnectNamedPipe
ContinueDebugEvent
CreateDirectoryW
CreateEventW
CreateFileA
CreateFileMappingW
CreateFileW
CreateIoCompletionPort
CreateJobObjectW
CreateMutexW
CreateNamedPipeW
CreateProcessW
CreateRemoteThread
CreateSemaphoreW
CreateThread
DebugActiveProcess
DebugBreak
DeleteCriticalSection
DeleteFileW
DeleteProcThreadAttributeList
DisconnectNamedPipe
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesEx
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindFirstFileW
FindNextFileW
FlushFileBuffers
FlushInstructionCache
FormatMessageA
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameExW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentProcessorNumber
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesExW
GetFileAttributesW
GetFileInformationByHandle
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExA
GetModuleHandleExW
GetModuleHandleW
GetNamedPipeHandleStateW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHandleCount
GetProcessHeap
GetProcessHeaps
GetProcessId
GetProcessTimes
GetProductInfo
GetQueuedCompletionStatus
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemPowerStatus
GetSystemTime
GetSystemTimeAsFileTime
GetTempPathW
GetThreadContext
GetThreadId
GetThreadPriority
GetThreadTimes
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetUserDefaultLangID
GetUserDefaultLocaleName
GetVersionExW
GetWindowsDirectoryW
GlobalMemoryStatusEx
HeapAlloc
HeapDestroy
HeapFree
HeapReAlloc
HeapSetInformation
HeapSize
InitOnceExecuteOnce
InitializeConditionVariable
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeProcThreadAttributeList
InitializeSListHead
IsDebuggerPresent
IsProcessInJob
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
K32QueryWorkingSetEx
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
LockFileEx
MapViewOfFile
MapViewOfFileEx
MoveFileExW
MultiByteToWideChar
OpenProcess
OutputDebugStringA
OutputDebugStringW
PeekNamedPipe
PostQueuedCompletionStatus
ProcessIdToSessionId
QueryDosDeviceW
QueryInformationJobObject
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReadProcessMemory
RegisterWaitForSingleObject
ReleaseSRWLockExclusive
ReleaseSemaphore
RemoveDirectoryW
ResetEvent
ResumeThread
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SearchPathW
SetCurrentDirectoryW
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointerEx
SetFileTime
SetHandleInformation
SetInformationJobObject
SetLastError
SetNamedPipeHandleState
SetStdHandle
SetThreadAffinityMask
SetThreadContext
SetThreadPriority
SetUnhandledExceptionFilter
SignalObjectAndWait
Sleep
SleepConditionVariableSRW
SuspendThread
SwitchToThread
SystemTimeToFileTime
SystemTimeToTzSpecificLocalTime
TerminateJobObject
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TransactNamedPipe
TryAcquireSRWLockExclusive
TzSpecificLocalTimeToSystemTime
UnhandledExceptionFilter
UnlockFileEx
UnmapViewOfFile
UnregisterWait
UnregisterWaitEx
UpdateProcThreadAttribute
VirtualAlloc
VirtualAllocEx
VirtualFree
VirtualFreeEx
VirtualProtect
VirtualProtectEx
VirtualQuery
VirtualQueryEx
WaitForDebugEvent
WaitForMultipleObjects
WaitForSingleObject
WaitForSingleObjectEx
WaitNamedPipeW
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
WriteProcessMemory
lstrcmpiA
lstrlenW

shell32

CommandLineToArgvW
SHGetFolderPathW
SHGetKnownFolderPath

userenv

CreateEnvironmentBlock
DestroyEnvironmentBlock
GetProfileType

winmm

timeBeginPeriod
timeEndPeriod
timeGetDevCaps
timeGetTime

ole32

CoInitializeEx
CoRegisterInitializeSpy
CoRevokeInitializeSpy
CoTaskMemFree
CoUninitialize

Exports

Exports

ClearBreakpadPipeEnvironmentVariable
CrashForException
DumpProcess
DumpProcessWithoutCrash
GetHandleVerifier
InjectDumpForHungInput
IsSandboxedProcess
TerminateProcessWithoutDump
_ovly_debug_event
nacl_global_xlate_base
nacl_thread_ids
nacl_user

Sections

.text
Size: 1.8MB - Virtual size: 1.8MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.3MB - Virtual size: 1.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 16KB - Virtual size: 175KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 73KB - Virtual size: 73KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 40B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 24B

.tls
Size: 512B - Virtual size: 305B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

CPADinfo
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 11KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

0a602922010018ba28d65eb7db35d620

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

dbghelp

user32

ws2_32

kernel32

shell32

userenv

winmm

ole32

Exports

Exports

Sections

.text Size: 1.8MB - Virtual size: 1.8MB

.rdata Size: 1.3MB - Virtual size: 1.3MB

.data Size: 16KB - Virtual size: 175KB

.pdata Size: 73KB - Virtual size: 73KB

.00cfg Size: 512B - Virtual size: 40B

.retplne Size: 512B - Virtual size: 24B

.tls Size: 512B - Virtual size: 305B

CPADinfo Size: 512B - Virtual size: 56B

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 2KB - Virtual size: 2KB

.reloc Size: 11KB - Virtual size: 10KB

.text
Size: 1.8MB - Virtual size: 1.8MB

.rdata
Size: 1.3MB - Virtual size: 1.3MB

.data
Size: 16KB - Virtual size: 175KB

.pdata
Size: 73KB - Virtual size: 73KB

.00cfg
Size: 512B - Virtual size: 40B

.retplne
Size: 512B - Virtual size: 24B

.tls
Size: 512B - Virtual size: 305B

CPADinfo
Size: 512B - Virtual size: 56B

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 2KB - Virtual size: 2KB

.reloc
Size: 11KB - Virtual size: 10KB