Static task
static1
Behavioral task
behavioral1
Sample
2024-05-25_e219764fa7e2e1285d8b59d7f5e5ed9e_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-25_e219764fa7e2e1285d8b59d7f5e5ed9e_ryuk.exe
Resource
win10v2004-20240426-en
General
-
Target
2024-05-25_e219764fa7e2e1285d8b59d7f5e5ed9e_ryuk
-
Size
2.2MB
-
MD5
e219764fa7e2e1285d8b59d7f5e5ed9e
-
SHA1
ac7db1c5e34cbe911f15ca4d6cc3d7c518d5f586
-
SHA256
24973a83ef28fca9483630764d79b49801353384810faa048732411aa185e2d9
-
SHA512
3299a9e57d06fb1f56c5dd10c8df0fbe1ca6d6624cf37b8ffc94e4486066d3b217771ab13cc06e0197e16caf1303151d83f8377f080fa453c6520518ff6f4df2
-
SSDEEP
49152:NLUDFG7GuWo4PbYMSjtg9njcUbi5ZJsv6tWKFdu9Cw:FU+Gu+7cWYJsv6tWKFdu9Cw
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-25_e219764fa7e2e1285d8b59d7f5e5ed9e_ryuk
Files
-
2024-05-25_e219764fa7e2e1285d8b59d7f5e5ed9e_ryuk.exe windows:6 windows x64 arch:x64
eba26a6075a89381f4f851f0985df4a9
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
SystemFunction036
RegSetValueExW
RegQueryInfoKeyW
RegFlushKey
RegEnumValueW
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
OpenProcessToken
CopySid
FreeSid
GetLengthSid
GetTokenInformation
RegCreateKeyExW
RegDeleteKeyW
RegDeleteValueW
RegEnumKeyExW
shell32
SHGetSpecialFolderPathW
kernel32
GetStringTypeW
GetProcessHeap
FreeEnvironmentStringsW
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
LeaveCriticalSection
RtlUnwindEx
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
GetModuleFileNameW
RtlPcToFileHeader
RaiseException
SetLastError
ExitProcess
GetModuleHandleExW
DuplicateHandle
CreateProcessA
PeekNamedPipe
MultiByteToWideChar
GetConsoleMode
ReadConsoleW
SetFileAttributesW
SetStdHandle
WideCharToMultiByte
GetConsoleCP
GetTimeZoneInformation
GetModuleFileNameA
GetStdHandle
GetCommandLineA
GetCommandLineW
GetACP
HeapFree
HeapAlloc
LCMapStringW
WaitForSingleObject
GetExitCodeProcess
CreatePipe
HeapReAlloc
WriteConsoleW
GetCPInfo
SetEnvironmentVariableA
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetEnvironmentStringsW
Sections
.text Size: 1.5MB - Virtual size: 1.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 639KB - Virtual size: 639KB
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: 39KB - Virtual size: 38KB
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: 208B
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