Static task
static1
Behavioral task
behavioral1
Sample
2024-01-11_f75d2661a2b9147252866eafb8d8fb88_ryuk.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-11_f75d2661a2b9147252866eafb8d8fb88_ryuk.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-11_f75d2661a2b9147252866eafb8d8fb88_ryuk
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Size
1.6MB
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MD5
f75d2661a2b9147252866eafb8d8fb88
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SHA1
34d9cbf3033edc2efe86a570908f5990570f5a34
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SHA256
24e99174031b25c182cd6a691e644ee177ca94e97963ae6ca94150e8d48a1b41
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SHA512
69b41d2255c90cdd438e8c396591e919b4496a45f97a0e92b66623bd441f191c0244c50b88655dfc85346f66a5f966a2e7793fbcc93b3c93f59c9477d2154ce4
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SSDEEP
24576:6MMeoHKy9ZWQ+zIh+nro8A0L3hCIFhPCIyNJ/bDDG+id:XMeoHKyW7zfnE8AO1PP8NJA
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-01-11_f75d2661a2b9147252866eafb8d8fb88_ryuk
Files
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2024-01-11_f75d2661a2b9147252866eafb8d8fb88_ryuk.exe windows:6 windows x64 arch:x64
23a184a246b853a7debfff68e5399c2f
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
gdi32
CreateDCW
GetDeviceCaps
setupapi
SetupDiGetDeviceInterfaceDetailW
SetupDiGetClassDevsW
SetupDiEnumDeviceInterfaces
SetupDiDestroyDeviceInfoList
SetupDiGetDeviceRegistryPropertyA
SetupDiEnumDeviceInfo
SetupDiGetDeviceInstanceIdA
SetupDiGetClassDevsA
kernel32
LoadLibraryW
QueryDepthSList
InterlockedPopEntrySList
ReleaseSemaphore
VirtualFree
VirtualAlloc
GetVersionExW
GetModuleFileNameA
SetLastError
GetFullPathNameW
GetModuleFileNameW
LocalAlloc
CreateFileW
GetFileAttributesW
lstrcmpA
GetSystemDirectoryW
GetLastError
OutputDebugStringW
FileTimeToSystemTime
CloseHandle
GetProcAddress
LocalFree
VerSetConditionMask
GetModuleHandleW
FreeLibrary
VerifyVersionInfoW
LoadLibraryExW
GetConsoleScreenBufferInfo
GetStdHandle
WriteConsoleOutputCharacterA
SetConsoleCursorPosition
QueryPerformanceCounter
SetThreadPriority
GetCurrentThread
SetConsoleCtrlHandler
SetDefaultDllDirectories
RegisterWaitForSingleObject
OutputDebugStringA
WaitForSingleObject
GetCurrentDirectoryA
UnmapViewOfFile
CreateEventW
Sleep
SetEvent
QueryPerformanceFrequency
CreateThread
UnregisterWaitEx
CreateFileMappingA
OpenFileMappingA
CreateEventA
MapViewOfFile
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSection
OpenEventW
OpenProcess
QueryFullProcessImageNameA
DeleteCriticalSection
GetExitCodeProcess
GetCurrentProcess
LoadLibraryExA
LoadLibraryA
HeapAlloc
GetProcessHeap
GetCommandLineW
ResetEvent
DeviceIoControl
GetLogicalProcessorInformationEx
GetModuleHandleA
GetTickCount64
RaiseException
GetSystemInfo
VirtualProtect
VirtualQuery
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
WaitForSingleObjectEx
IsDebuggerPresent
GetStartupInfoW
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
WideCharToMultiByte
TryEnterCriticalSection
DuplicateHandle
GetExitCodeThread
GetNativeSystemInfo
MultiByteToWideChar
GetStringTypeW
EncodePointer
DecodePointer
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetTickCount
CompareStringW
LCMapStringW
GetLocaleInfoW
GetCPInfo
RtlPcToFileHeader
RtlUnwindEx
InterlockedPushEntrySList
InterlockedFlushSList
ExitProcess
GetModuleHandleExW
GetFileType
WriteConsoleW
WriteFile
GetCommandLineA
HeapFree
ExitThread
FreeLibraryAndExitThread
HeapReAlloc
GetFileSizeEx
SetFilePointerEx
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
FlushFileBuffers
GetConsoleCP
GetConsoleMode
ReadFile
GetTimeZoneInformation
HeapSize
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetStdHandle
ReadConsoleW
SetEndOfFile
CreateTimerQueue
SignalObjectAndWait
SwitchToThread
GetThreadPriority
GetLogicalProcessorInformation
CreateTimerQueueTimer
ChangeTimerQueueTimer
DeleteTimerQueueTimer
GetNumaHighestNodeNumber
GetProcessAffinityMask
SetThreadAffinityMask
UnregisterWait
GetThreadTimes
Sections
.text Size: 702KB - Virtual size: 701KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 239KB - Virtual size: 238KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 23KB - Virtual size: 71KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 39KB - Virtual size: 39KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.didat Size: 1024B - Virtual size: 568B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 9B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 13KB - Virtual size: 13KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 572KB - Virtual size: 576KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE