Static task
static1
Behavioral task
behavioral1
Sample
2024-04-11_29d54735c6ceda63ce703ff1c5280822_ryuk.exe
Resource
win7-20240319-en
Behavioral task
behavioral2
Sample
2024-04-11_29d54735c6ceda63ce703ff1c5280822_ryuk.exe
Resource
win10v2004-20240319-en
General
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Target
2024-04-11_29d54735c6ceda63ce703ff1c5280822_ryuk
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Size
2.2MB
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MD5
29d54735c6ceda63ce703ff1c5280822
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SHA1
f56c80fcf652e860e9baf8b485bf302e9270e639
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SHA256
d18b669924acdebf4e10965d9345344774995157cb165f2ab279b4d16a53a4de
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SHA512
c5f3df05780d1938735f22d9ef05f4df96888bc78afa2f73e481cb23ac6143903f8e8df795cb3f915a7fc914ca857ac8804ef073b4db8b851f8e9e2e74946db6
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SSDEEP
49152:VRda4hoyjuf6Mpg0s4pWUagaQInL/fvxjQZvgJsv6tWKFdu9CX:kEoVAfvxLJsv6tWKFdu9C
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-04-11_29d54735c6ceda63ce703ff1c5280822_ryuk
Files
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2024-04-11_29d54735c6ceda63ce703ff1c5280822_ryuk.exe windows:6 windows x64 arch:x64
a3b9274bd2ddcfd0f68c08076ec911c9
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
ole32
CoCreateGuid
CoInitialize
CoCreateInstance
CoUninitialize
advapi32
GetLengthSid
RegSetValueExW
RegQueryInfoKeyW
RegFlushKey
RegEnumValueW
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
OpenProcessToken
CopySid
FreeSid
GetTokenInformation
RegCreateKeyExW
RegDeleteKeyW
RegDeleteValueW
RegEnumKeyExW
shell32
SHGetSpecialFolderPathW
kernel32
LeaveCriticalSection
GetProcessHeap
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetFileAttributesW
GetSystemInfo
GetComputerNameW
CreateFileW
GetFileTime
SetFileTime
CloseHandle
GetLastError
LocalFree
FormatMessageW
SetCurrentDirectoryW
GetCurrentDirectoryW
CreateDirectoryW
DeleteFileW
FindClose
FindFirstFileW
GetFileAttributesExW
GetFileInformationByHandle
GetFullPathNameW
GetLogicalDrives
GetLongPathNameW
RemoveDirectoryW
GetTempPathW
SetErrorMode
DeviceIoControl
GetCurrentProcess
GetProcAddress
LoadLibraryW
CopyFileW
MoveFileW
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
FindFirstFileExW
FindNextFileW
GetLocalTime
FlushFileBuffers
GetFileType
ReadFile
SetEndOfFile
SetFilePointerEx
WriteFile
CreateFileMappingW
MapViewOfFile
UnmapViewOfFile
MoveFileExW
GetSystemDirectoryW
GetModuleHandleW
GetDateFormatW
GetTimeFormatW
GetLocaleInfoW
GetCurrencyFormatW
GetUserDefaultUILanguage
GetUserDefaultLCID
CompareStringW
OutputDebugStringW
EnterCriticalSection
HeapSize
DeleteCriticalSection
SetEvent
ResetEvent
WaitForSingleObjectEx
CreateEventW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
RtlUnwindEx
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
RtlPcToFileHeader
RaiseException
SetLastError
ExitProcess
GetModuleHandleExW
DuplicateHandle
CreateProcessA
PeekNamedPipe
MultiByteToWideChar
GetConsoleMode
ReadConsoleW
SetFileAttributesW
SetStdHandle
WideCharToMultiByte
GetConsoleCP
GetTimeZoneInformation
GetACP
GetModuleFileNameA
GetStdHandle
GetCommandLineA
GetCommandLineW
HeapFree
HeapAlloc
LCMapStringW
IsValidLocale
EnumSystemLocalesW
WaitForSingleObject
GetExitCodeProcess
CreatePipe
HeapReAlloc
WriteConsoleW
GetCPInfo
SetEnvironmentVariableA
GetStringTypeW
IsValidCodePage
GetOEMCP
FindFirstFileExA
FindNextFileA
Sections
.text Size: 1.5MB - Virtual size: 1.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 652KB - Virtual size: 652KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 14KB - Virtual size: 22KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 40KB - Virtual size: 39KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.tls Size: 512B - Virtual size: 13B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.gfids Size: 512B - Virtual size: 248B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ