Static task
static1
Behavioral task
behavioral1
Sample
2024-01-23_382c8cf36e21996d315a85ff0758b39c_ryuk.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-23_382c8cf36e21996d315a85ff0758b39c_ryuk.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-23_382c8cf36e21996d315a85ff0758b39c_ryuk
-
Size
9.5MB
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MD5
382c8cf36e21996d315a85ff0758b39c
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SHA1
fab26aab3e00874df9794e74509e748f8af1b05d
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SHA256
0b22a802570057a6ab373c69e13eef84fafc936959f67f56af99c7a495817ff4
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SHA512
fb22410419d4be1deb4c20cd26d797137346eee2bee5e80ea1f5478edb079b47c0d4674f03e0df3da3a61e37d2738ed79bd9142b1919ff8596b97458ff692eed
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SSDEEP
98304:IXskWtQ4xajlzNUp6TK5/6AhuJi0PIoWi5Iv0k27VIGU9KWYL:IiaJJU3ISh0PIoWi5027QzYL
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-01-23_382c8cf36e21996d315a85ff0758b39c_ryuk
Files
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2024-01-23_382c8cf36e21996d315a85ff0758b39c_ryuk.exe windows:6 windows x64 arch:x64
3e2f121d69f8700a4aaf91556708794c
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
opengl32
glBindTexture
glBlendFunc
glClear
glClearColor
glCullFace
glDeleteTextures
glDepthRange
glDisable
glDrawArrays
glDrawElements
glEnable
glGenTextures
glGetError
glGetIntegerv
glGetString
glLineWidth
glPixelStorei
glTexImage2D
glTexParameteri
glTexSubImage2D
glViewport
wglCreateContext
wglDeleteContext
wglGetCurrentDC
wglGetProcAddress
wglMakeCurrent
ws2_32
WSACleanup
WSAGetLastError
WSAStartup
accept
bind
closesocket
connect
htons
inet_pton
ioctlsocket
listen
recv
select
send
setsockopt
shutdown
socket
kernel32
AcquireSRWLockExclusive
CloseHandle
CloseThreadpoolTimer
CloseThreadpoolWait
CompareStringW
CreateDirectoryW
CreateEventExW
CreateFileA
CreateFileMappingA
CreateFileMappingW
CreateFileW
CreateProcessW
CreateSemaphoreExW
CreateThread
CreateThreadpoolTimer
CreateThreadpoolWait
DeleteCriticalSection
DuplicateHandle
EncodePointer
EnterCriticalSection
ExitProcess
ExitThread
FindClose
FindFirstFileExW
FindFirstFileW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FlushProcessWriteBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
FreeLibraryWhenCallbackReturns
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentProcessorNumberEx
GetCurrentThread
GetCurrentThreadId
GetEnvironmentStringsW
GetExitCodeThread
GetFileAttributesW
GetFileSizeEx
GetFileType
GetLastError
GetLogicalProcessorInformationEx
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNumaHighestNodeNumber
GetOEMCP
GetProcAddress
GetProcessAffinityMask
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemInfo
GetSystemTimeAsFileTime
GetThreadGroupAffinity
GetThreadPriority
GetThreadTimes
GetTickCount64
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
InterlockedFlushSList
InterlockedPopEntrySList
InterlockedPushEntrySList
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
LoadLibraryW
LocalFree
MapViewOfFile
MultiByteToWideChar
OutputDebugStringA
QueryDepthSList
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadFile
ReleaseSRWLockExclusive
ReleaseSemaphore
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetThreadGroupAffinity
SetThreadPriority
SetThreadpoolTimer
SetThreadpoolWait
SetUnhandledExceptionFilter
SignalObjectAndWait
Sleep
SleepConditionVariableSRW
SwitchToThread
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
UnmapViewOfFile
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
WaitForSingleObject
WaitForSingleObjectEx
WaitForThreadpoolTimerCallbacks
WakeAllConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
user32
AdjustWindowRectExForDpi
BeginPaint
CreateWindowExW
DefWindowProcW
DestroyWindow
DispatchMessageW
EndPaint
GetClientRect
GetDC
GetDpiForWindow
GetKeyState
GetMonitorInfoW
GetSystemMetrics
GetWindowLongPtrW
LoadCursorFromFileW
LoadCursorW
LoadImageW
MessageBoxA
MessageBoxW
MonitorFromWindow
PeekMessageW
PostMessageW
PostQuitMessage
RegisterClassExW
ReleaseCapture
ReleaseDC
SetCapture
SetClassLongPtrW
SetCursor
SetProcessDpiAwarenessContext
SetUserObjectInformationA
SetWindowLongPtrW
SetWindowLongW
SetWindowPos
SetWindowRgn
ShowWindow
TranslateMessage
UpdateWindow
gdi32
ChoosePixelFormat
SetPixelFormat
SwapBuffers
shell32
CommandLineToArgvW
SHGetKnownFolderPath
ole32
CoCreateInstance
CoInitializeEx
CoTaskMemFree
CoUninitialize
Sections
.text Size: 7.0MB - Virtual size: 7.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 1.9MB - Virtual size: 1.9MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 23KB - Virtual size: 33.4MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 297KB - Virtual size: 296KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gxfg Size: 7KB - Virtual size: 6KB
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
_RDATA Size: 512B - Virtual size: 500B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 67KB - Virtual size: 66KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 181KB - Virtual size: 181KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ