Static task
static1
Behavioral task
behavioral1
Sample
ryuk.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
ryuk.exe
Resource
win10v2004-20220812-en
General
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Target
ryuk.exe
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Size
885KB
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MD5
35194c73ff38dd6c3bed7c0efcff6826
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SHA1
1a1ebd30f4a3498cc09824b6fdfdf1b8d9ae9db1
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SHA256
5fce1d810a5e1c7536496c1b73eff77c9c3d92ac41f86959a1be5349663403ae
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SHA512
cf2ed61ffdfad8067aff8776e0dab1f27ea2551f7497108a6cca7eb0105a5f96ea1453dde29f488433cc645e55104d7397ee4f35db51526993823ef46763f28f
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SSDEEP
12288:CXrZ7kwy8U9JlpYqWYgeWYg955/155/0QebUlAAs7sKSAoSRn6X:C97ktflKgQKUKR7sKSAhN6
Malware Config
Signatures
Files
-
ryuk.exe.exe windows x64
5f24714164a9ad4859d8c58015a5851b
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
TerminateProcess
SetThreadPriority
SetFilePointer
CreateMutexW
InitializeCriticalSectionEx
FindClose
CreateFileW
ReleaseMutex
OpenProcess
SetFileAttributesW
CreateToolhelp32Snapshot
Sleep
FormatMessageW
CopyFileA
GetLastError
Process32NextW
Process32FirstW
CloseHandle
RaiseException
DecodePointer
WriteFile
LocalFree
GetFileSize
DeleteCriticalSection
CopyFileW
WideCharToMultiByte
GetConsoleWindow
OpenMutexW
GetDriveTypeW
SetLastError
QueryPerformanceCounter
QueryPerformanceFrequency
SetEndOfFile
WriteConsoleW
SetStdHandle
GetProcessHeap
SetEnvironmentVariableW
GetCurrentProcess
FindNextFileW
SetPriorityClass
FindFirstFileW
ReadFile
FreeEnvironmentStringsW
GetEnvironmentStringsW
SetThreadPriorityBoost
SetProcessPriorityBoost
GetOEMCP
GetACP
IsValidCodePage
FindFirstFileExW
MultiByteToWideChar
GetStringTypeW
InitializeSRWLock
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
EnterCriticalSection
LeaveCriticalSection
TryEnterCriticalSection
GetCurrentThreadId
WaitForSingleObjectEx
EncodePointer
GetSystemTimeAsFileTime
GetModuleHandleW
GetProcAddress
LCMapStringEx
GetCPInfo
IsDebuggerPresent
OutputDebugStringW
InitializeCriticalSectionAndSpinCount
SetEvent
ResetEvent
CreateEventW
InitializeSListHead
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsProcessorFeaturePresent
GetStartupInfoW
GetCurrentProcessId
RtlUnwindEx
InterlockedPushEntrySList
RtlPcToFileHeader
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
ExitProcess
GetModuleHandleExW
CreateThread
ExitThread
FreeLibraryAndExitThread
MoveFileExW
GetModuleFileNameW
GetStdHandle
GetCommandLineA
GetCommandLineW
GetFileSizeEx
SetFilePointerEx
GetFileType
HeapAlloc
HeapFree
CompareStringW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
WaitForSingleObject
GetExitCodeProcess
CreateProcessW
GetFileAttributesExW
ReadConsoleW
HeapReAlloc
HeapSize
RtlUnwind
user32
MessageBoxW
ShowWindow
advapi32
CryptAcquireContextA
CryptGenRandom
CryptReleaseContext
shell32
SHEmptyRecycleBinW
iphlpapi
GetIpNetTable
ws2_32
inet_ntoa
netapi32
NetShareEnum
NetApiBufferFree
Sections
.text Size: 608KB - Virtual size: 607KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 210KB - Virtual size: 210KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 29KB - Virtual size: 40KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 27KB - Virtual size: 27KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 348B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ