Static task
static1
Behavioral task
behavioral1
Sample
2024-04-25_2e977acb327057c4675e28e5e5e7d8fa_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-25_2e977acb327057c4675e28e5e5e7d8fa_ryuk.exe
Resource
win10v2004-20240226-en
General
-
Target
2024-04-25_2e977acb327057c4675e28e5e5e7d8fa_ryuk
-
Size
15.8MB
-
MD5
2e977acb327057c4675e28e5e5e7d8fa
-
SHA1
073691f233b26799635c6c512836ab6b34d88fb8
-
SHA256
ec9364508c3167d3e16e1aaac42a9195bde1ebb8e10d47b54d024caaff9c2cd6
-
SHA512
74a4ca7636e0bb9af276aa1828ea9d5a30265f106040656d84bf2ea3c5ccbb1c7ce532e91043c0bfcd98939f2db84de768a21d1c28650dea9e68e78237866389
-
SSDEEP
98304:gmfd6IZRFfadFSwxki0BHjfC2RPCJyFvoW+Bbz0sfaps6ZAj2MLCNwzJE/i9zmtn:gmfdzFV
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-04-25_2e977acb327057c4675e28e5e5e7d8fa_ryuk
Files
-
2024-04-25_2e977acb327057c4675e28e5e5e7d8fa_ryuk.exe windows:6 windows x64 arch:x64
49c75228c5e2b0ad48b5a206441dea21
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
GetProcAddress
SetEvent
Sleep
CreateEventA
GetNumaHighestNodeNumber
SetThreadPriority
GetCurrentThread
SetThreadGroupAffinity
GetNumaNodeProcessorMaskEx
ReleaseSemaphore
UnmapViewOfFile
CreateFileMappingA
OpenFileMappingA
CreateSemaphoreA
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
CreateFileW
GetDriveTypeW
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
HeapAlloc
HeapReAlloc
HeapFree
GetModuleFileNameA
WriteFile
GetCommandLineA
GetACP
GetDateFormatW
GetTimeFormatW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
GetConsoleCP
GetExitCodeProcess
GetFileAttributesExW
CreatePipe
SetFilePointerEx
ReadConsoleW
FlushFileBuffers
HeapSize
GetCurrentDirectoryW
GetFullPathNameW
SetStdHandle
GetProcessHeap
FindClose
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
SleepConditionVariableCS
shell32
CommandLineToArgvW
advapi32
SystemFunction036
Sections
.text Size: 15.2MB - Virtual size: 15.2MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 465KB - Virtual size: 465KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 23KB - Virtual size: 96KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 83KB - Virtual size: 83KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 1024B - Virtual size: 796B
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: 8KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ