Static task
static1
Behavioral task
behavioral1
Sample
2024-07-06_7d93f45101618128676c2d1f398ce09c_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-07-06_7d93f45101618128676c2d1f398ce09c_ryuk.exe
Resource
win10v2004-20240704-en
General
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Target
2024-07-06_7d93f45101618128676c2d1f398ce09c_ryuk
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Size
1.6MB
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MD5
7d93f45101618128676c2d1f398ce09c
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SHA1
1107c29e4fc0dc99c7bfc56bb69f1ef664a290f1
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SHA256
cf6bab3781cdd601c0fb0b49988d5ca2cc5ea03eac95b734467f4400423a1b90
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SHA512
bcd74c77942846765c643c3a6263fdcae1c357cbf1e5fbc1c247a2b8258941f2e77cff24ec5535941539b633bb4ab6f0e83592a88bb36897523f7ee30482f52e
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SSDEEP
24576:pnmd2ENGvDUoKGDZrtFZ8qdIfk/PxDpXCgwNwE7zDx7If9QE:kMDUvOYqMk/XXCBwEbxsfCE
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-07-06_7d93f45101618128676c2d1f398ce09c_ryuk
Files
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2024-07-06_7d93f45101618128676c2d1f398ce09c_ryuk.exe windows:6 windows x64 arch:x64
aed8ace5c0f02e6ec0b6444cc7b62eeb
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
GetModuleHandleA
GetProcAddress
FreeLibrary
QueryPerformanceCounter
GetEnvironmentStringsW
GetModuleHandleW
HeapFree
HeapAlloc
GetProcessHeap
LocalFree
CloseHandle
GetCurrentProcessId
ReadFile
WriteFile
CreateFileW
VirtualFree
VirtualAlloc
IsProcessorFeaturePresent
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
SetThreadAffinityMask
ReleaseSemaphore
CreateEventW
SetEvent
ResetEvent
GetCommandLineW
GetCommandLineA
GetOEMCP
GetACP
IsValidCodePage
SetStdHandle
ReadConsoleW
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
FlsFree
FlsSetValue
FlsGetValue
FlsAlloc
GetConsoleMode
FlushFileBuffers
GetFileSizeEx
GetStdHandle
HeapReAlloc
GetFileType
GetModuleHandleExW
ExitProcess
RtlUnwindEx
RaiseException
RtlPcToFileHeader
LoadLibraryW
UnregisterWaitEx
WideCharToMultiByte
MultiByteToWideChar
GetLastError
FreeEnvironmentStringsW
HeapSize
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
QueryDepthSList
InterlockedFlushSList
InterlockedPushEntrySList
InterlockedPopEntrySList
VirtualProtect
GetVersionExW
RtlCaptureContext
GetCPInfo
GetLocaleInfoW
LCMapStringW
DecodePointer
LoadLibraryExW
GetModuleFileNameW
FreeLibraryAndExitThread
GetThreadTimes
UnregisterWait
RegisterWaitForSingleObject
GetProcessAffinityMask
GetNumaHighestNodeNumber
DeleteTimerQueueTimer
ChangeTimerQueueTimer
EncodePointer
GetTickCount
GetSystemTimeAsFileTime
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSectionAndSpinCount
SetLastError
GetStringTypeW
WriteConsoleW
TerminateProcess
IsDebuggerPresent
GetStartupInfoW
InitializeSListHead
CreateTimerQueueTimer
GetLogicalProcessorInformation
GetThreadPriority
SetThreadPriority
CreateTimerQueue
GetConsoleOutputCP
CreateThread
SwitchToThread
FindClose
FindFirstFileExW
FindNextFileW
SetFilePointerEx
TryEnterCriticalSection
GetCurrentThreadId
DuplicateHandle
WaitForSingleObjectEx
Sleep
GetCurrentProcess
GetCurrentThread
SignalObjectAndWait
oleaut32
VariantClear
Sections
.text Size: 342KB - Virtual size: 341KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 356KB - Virtual size: 356KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 11KB - Virtual size: 22KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 22KB - Virtual size: 21KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 3KB - Virtual size: 3KB
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
.gxfg Size: 8KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gehcont Size: 512B - Virtual size: 32B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 929KB - Virtual size: 929KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ