Static task
static1
Behavioral task
behavioral1
Sample
2024-04-15_d0c8dd7159d5041b285348d152f55f7c_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-15_d0c8dd7159d5041b285348d152f55f7c_ryuk.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-15_d0c8dd7159d5041b285348d152f55f7c_ryuk
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Size
7.4MB
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MD5
d0c8dd7159d5041b285348d152f55f7c
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SHA1
6faebbb9aaa56bd915d201aed43e62fa19e50f9f
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SHA256
c9efb355635563b0fc35c61ef17095a60373f8eb679b3aa7b5c9126637fbbc05
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SHA512
60153f70080e86879efd1ce17c14c56f7c99b80f148587732e597f7bc9aa7e009dbeddfe4e05de02fd01dfbf1e5b26e782230f9a2b62963367418924a0e00e54
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SSDEEP
196608:5xhS+mqAjHNA6XpMVDybIfrBksAJ4CdwbIaO5khQ4+YkMxbe:57S+mtNxZNkT/A9dKIxOQ9DMxb
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-04-15_d0c8dd7159d5041b285348d152f55f7c_ryuk
Files
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2024-04-15_d0c8dd7159d5041b285348d152f55f7c_ryuk.exe windows:6 windows x64 arch:x64
a074d3d16e892f622642678e6b75ca1c
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
AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateFileW
CreateThread
DecodePointer
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetExitCodeThread
GetFileSizeEx
GetFileType
GetLastError
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
GetUserDefaultLCID
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringEx
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WaitForSingleObjectEx
WakeAllConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
Sections
.text Size: 370KB - Virtual size: 370KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 254KB - Virtual size: 254KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 5KB - Virtual size: 8.0MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 13KB - Virtual size: 13KB
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: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rodata Size: 6.8MB - Virtual size: 6.8MB
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
_RDATA Size: 512B - Virtual size: 348B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ