Static task
static1
Behavioral task
behavioral1
Sample
2024-03-06_0d8b37fdb892a842d62af6d9254e48f4_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-06_0d8b37fdb892a842d62af6d9254e48f4_ryuk.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-06_0d8b37fdb892a842d62af6d9254e48f4_ryuk
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Size
4.2MB
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MD5
0d8b37fdb892a842d62af6d9254e48f4
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SHA1
4e96dc2c46d2a3108a1480d78a96d243bf525f05
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SHA256
aeddf36d7e9b5574c29c89411b2a4dba67669e62b981e3a49f1e358d8730ad6c
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SHA512
a5acee55c99eb5117920f9d3f4d484daf6fa7ae243ce5042a9e4141dbfb086bb6d3e6cd3c65a7115b42999c39fae41861c3e43fbfb14ff5df0fc1a1c4052cf90
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SSDEEP
49152:p7SebGhG1pgCzZVfhjoOc8hpB89INRS7TTxzEJTP6H+om4:ZSeFik1oxINRSnTpEt6H+o
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-03-06_0d8b37fdb892a842d62af6d9254e48f4_ryuk
Files
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2024-03-06_0d8b37fdb892a842d62af6d9254e48f4_ryuk.exe windows:6 windows x64 arch:x64
9a0dec836d72f025b9dd11110f857aff
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
GetLocaleInfoW
CreateFileW
GetFileAttributesW
GetCurrentThreadId
ReleaseMutex
GetSystemDirectoryW
GetModuleHandleA
GetLogicalDriveStringsW
FormatMessageW
GetLastError
GetFileAttributesExW
OutputDebugStringW
TerminateThread
QueryPerformanceFrequency
DeleteFileW
LoadLibraryW
GetCurrentDirectoryW
SetCurrentDirectoryW
ReplaceFileW
ExitProcess
FreeLibrary
CopyFileW
QueryPerformanceCounter
MoveFileW
GetDriveTypeW
IsDebuggerPresent
SetUnhandledExceptionFilter
FlushFileBuffers
GetCommandLineW
AttachConsole
GlobalSize
GlobalAlloc
GlobalLock
GetCurrentProcessId
GlobalUnlock
WriteConsoleW
SetStdHandle
SetEnvironmentVariableA
FindClose
SetFilePointer
GetCommandLineA
FindNextFileA
FindFirstFileExA
GetProcessHeap
GetConsoleCP
GetOEMCP
IsValidCodePage
GetFileType
ReadConsoleW
GetConsoleMode
SetFilePointerEx
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetTimeFormatW
GetDateFormatW
GetStdHandle
GetModuleFileNameA
HeapFree
HeapReAlloc
HeapAlloc
GetACP
FreeLibraryAndExitThread
ExitThread
CreateThread
GetTimeZoneInformation
LoadLibraryExW
RtlUnwindEx
RaiseException
RtlPcToFileHeader
InitializeSListHead
GetStartupInfoW
IsProcessorFeaturePresent
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
WaitForSingleObjectEx
GetCPInfo
GetStringTypeW
LCMapStringW
CompareStringW
GetModuleHandleW
GetSystemTimeAsFileTime
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSectionAndSpinCount
SetLastError
DecodePointer
EncodePointer
CreateMutexW
GetTempPathW
SetEndOfFile
FreeEnvironmentStringsW
GetModuleFileNameW
RemoveDirectoryW
TerminateProcess
GetModuleHandleExW
WriteFile
FindNextFileW
FindFirstFileW
GetVolumeInformationW
ReadFile
SetThreadAffinityMask
CreateDirectoryW
WideCharToMultiByte
DeleteCriticalSection
FindResourceW
LoadResource
LockResource
MultiByteToWideChar
InitializeCriticalSection
LeaveCriticalSection
EnterCriticalSection
SizeofResource
GetProcAddress
ResetEvent
CloseHandle
GetCurrentThread
SetEvent
Sleep
CreateEventW
WaitForSingleObject
SetThreadPriority
GetCurrentProcess
GetEnvironmentStringsW
HeapSize
user32
RegisterClassExW
GetDesktopWindow
IsWindow
MoveWindow
DefWindowProcW
DestroyWindow
SetWindowLongPtrW
GetWindowRect
GetWindow
CallWindowProcW
AttachThreadInput
GetWindowThreadProcessId
GetWindowTextW
TranslateMessage
SetFocus
EnumWindows
PeekMessageW
DispatchMessageW
GetFocus
CreateWindowExW
PostMessageW
UnregisterClassW
ReleaseDC
GetDC
SetWindowPos
EndPaint
BeginPaint
GetCursorPos
SetCursorPos
InvalidateRect
SetForegroundWindow
ReleaseCapture
GetParent
SystemParametersInfoW
EnableMenuItem
ShowCaret
UpdateLayeredWindow
SetWindowLongW
SetCursor
ToUnicode
SetClipboardData
SetCapture
DestroyCaret
LoadCursorW
FindWindowW
GetClipboardData
SetLayeredWindowAttributes
GetMessageTime
GetForegroundWindow
TrackMouseEvent
CreateCaret
IsChild
EmptyClipboard
SendMessageW
CloseClipboard
GetMessageW
GetWindowLongPtrW
OpenClipboard
GetAsyncKeyState
ShowWindow
GetActiveWindow
SetCaretPos
GetKeyboardState
DestroyCursor
GetWindowPlacement
WindowFromPoint
MessageBeep
SetWindowTextW
GetSystemMetrics
ScreenToClient
GetIconInfo
EnumDisplayMonitors
EnumChildWindows
MessageBoxW
IsWindowVisible
MapVirtualKeyW
GetMessagePos
GetUpdateRgn
GetMessageExtraInfo
GetSystemMenu
GetWindowLongW
GetCapture
RedrawWindow
DestroyIcon
GetWindowInfo
GetMonitorInfoW
CreateIconIndirect
SendMessageTimeoutW
gdi32
GetGlyphIndicesW
GetGlyphOutlineW
DeleteObject
RemoveFontMemResourceEx
SetMapMode
CreateFontIndirectW
GetOutlineTextMetricsW
GetObjectW
GetRegionData
SetMapperFlags
GetPixel
CreateRectRgnIndirect
StretchDIBits
CreateDIBSection
SetPixelFormat
SwapBuffers
ChoosePixelFormat
DeleteDC
GetDeviceCaps
GetTextMetricsW
CreateCompatibleDC
GetKerningPairsW
SelectObject
CombineRgn
CreateBitmap
RestoreDC
CreateRectRgn
SaveDC
ExcludeClipRect
comdlg32
GetSaveFileNameW
GetOpenFileNameW
advapi32
RegOpenKeyExW
RegQueryValueExW
RegCloseKey
shell32
ShellExecuteW
SHGetSpecialFolderPathW
SHGetMalloc
ExtractAssociatedIconW
SHBrowseForFolderW
SHGetPathFromIDListW
ole32
RevokeDragDrop
RegisterDragDrop
DoDragDrop
OleInitialize
OleUninitialize
CoCreateGuid
CoCreateInstance
CoTaskMemAlloc
wininet
InternetReadFile
InternetSetOptionW
FtpOpenFileW
InternetCloseHandle
HttpSendRequestExW
HttpEndRequestW
InternetCrackUrlW
InternetSetFilePointer
HttpQueryInfoW
InternetWriteFile
HttpOpenRequestW
InternetConnectW
InternetOpenW
version
VerQueryValueW
GetFileVersionInfoSizeW
GetFileVersionInfoW
shlwapi
PathStripToRootW
winmm
timeGetTime
timeBeginPeriod
imm32
ImmNotifyIME
ImmGetCompositionStringW
ImmReleaseContext
ImmGetContext
ImmSetCandidateWindow
opengl32
wglCreateContext
wglGetProcAddress
glTexParameteri
glDeleteTextures
glClearColor
glGetBooleanv
glDrawArrays
wglDeleteContext
glTexImage2D
glReadPixels
glDisable
wglMakeCurrent
glPixelStorei
glTexSubImage2D
glGetString
glGetError
glGetIntegerv
glClear
glBlendFunc
glScissor
glEnable
glGenTextures
glBindTexture
wglGetCurrentContext
wglShareLists
glViewport
glDrawElements
Sections
.text Size: 1.8MB - Virtual size: 1.8MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 2.1MB - Virtual size: 2.1MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 67KB - Virtual size: 74KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 94KB - Virtual size: 94KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 1024B - Virtual size: 524B
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: 10KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 91KB - Virtual size: 91KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 30KB - Virtual size: 29KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ