Static task
static1
Behavioral task
behavioral1
Sample
2024-06-28_453f28977c2a0087c56dca9f30ebe003_ryuk.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
2024-06-28_453f28977c2a0087c56dca9f30ebe003_ryuk.exe
Resource
win10v2004-20240611-en
General
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Target
2024-06-28_453f28977c2a0087c56dca9f30ebe003_ryuk
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Size
6.0MB
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MD5
453f28977c2a0087c56dca9f30ebe003
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SHA1
cb0042292ae43f5e11648fedeaa0a9c1ec66a75f
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SHA256
f397724b0656c5d9a2fe88e22d92d2dee4df900b33ddf374e14a61975871fe7d
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SHA512
5984100edbf3c4ebe130400116560628a1f0fdbe45b739e32a9d36bfcc83f63b067e3eb1a0c299ee880cefe11d96e25eb9b0ba938da6f4eb6ab9b2976baf890e
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SSDEEP
98304:AakUQnksXBWvGuxChLRnjUPySPYXif/iX:Aa4X
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-06-28_453f28977c2a0087c56dca9f30ebe003_ryuk
Files
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2024-06-28_453f28977c2a0087c56dca9f30ebe003_ryuk.exe windows:6 windows x64 arch:x64
f08979b53766bdc1d9dca75b043100cf
Headers
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
Imports
kernel32
WakeAllConditionVariable
LeaveCriticalSection
InitializeCriticalSection
InitializeConditionVariable
DeleteCriticalSection
GetCommandLineW
SetConsoleTitleA
GetConsoleTitleA
LocalFree
WideCharToMultiByte
GetStdHandle
MultiByteToWideChar
GetConsoleMode
WriteConsoleW
WaitForSingleObject
CloseHandle
EnterCriticalSection
LoadLibraryA
GetProcAddress
SetEvent
Sleep
CreateEventA
GetNumaHighestNodeNumber
SetThreadPriority
GetCurrentThread
SetThreadGroupAffinity
GetNumaNodeProcessorMaskEx
ReleaseSemaphore
UnmapViewOfFile
CreateFileMappingA
OpenFileMappingA
MapViewOfFile
CreateThread
SetEndOfFile
EncodePointer
DecodePointer
SetLastError
InitializeCriticalSectionAndSpinCount
CreateEventW
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
GetModuleHandleW
CompareStringW
LCMapStringW
GetLocaleInfoW
GetStringTypeW
GetCPInfo
ResetEvent
WaitForSingleObjectEx
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
InitializeSListHead
GetCurrentProcess
TerminateProcess
RtlPcToFileHeader
RaiseException
RtlUnwindEx
GetLastError
FreeLibrary
LoadLibraryExW
GetModuleFileNameW
DuplicateHandle
CreateProcessA
ExitProcess
GetModuleHandleExW
ReadFile
SetConsoleCtrlHandler
GetTimeZoneInformation
MoveFileExW
DeleteFileW
HeapAlloc
HeapReAlloc
HeapFree
GetModuleFileNameA
WriteFile
GetCommandLineA
GetACP
GetDateFormatW
GetTimeFormatW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
GetFileType
GetConsoleCP
GetExitCodeProcess
GetFileAttributesExW
CreatePipe
SetFilePointerEx
ReadConsoleW
FlushFileBuffers
HeapSize
GetProcessHeap
FindClose
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
SetStdHandle
CreateFileW
SleepConditionVariableCS
shell32
CommandLineToArgvW
advapi32
SystemFunction036
Sections
.text Size: 5.6MB - Virtual size: 5.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 292KB - Virtual size: 292KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 11KB - Virtual size: 38KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 40KB - Virtual size: 39KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 1024B - Virtual size: 564B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.tls Size: 512B - Virtual size: 9B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 6KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ