Static task
static1
Behavioral task
behavioral1
Sample
2024-02-24_bfd04769d1f93c8db2501a2aa7431d7f_ryuk.exe
Resource
win7-20240221-en
General
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Target
2024-02-24_bfd04769d1f93c8db2501a2aa7431d7f_ryuk
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Size
2.8MB
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MD5
bfd04769d1f93c8db2501a2aa7431d7f
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SHA1
883c0c5475b3b6484e4a1d2c39e21a48b1f36ca1
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SHA256
c0303769de4c73b7dfd7f0b6797caca38951f6819c80f3e95c01f948dd043b2f
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SHA512
3a6c87311f27c000a3bb9fb9ce000ac5a5adf6801b96d80affe7d578adbf6a1e9649ea299b9d199a82657d42e2ee075c5609b9b358c15e1f2d53a6e53d2e44b6
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SSDEEP
49152:lzpWyQO5hNEzs51ujTCOpwfwWLzLsJsv6tWKFdu9CpyDkcA9OY:eyGCuWLsJsv6tWKFdu9CRd
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-02-24_bfd04769d1f93c8db2501a2aa7431d7f_ryuk
Files
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2024-02-24_bfd04769d1f93c8db2501a2aa7431d7f_ryuk.exe windows:6 windows x64 arch:x64
80e9875351da4434b9ac8b66a39e73b1
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
ole32
CoTaskMemFree
CoCreateGuid
advapi32
RegDeleteKeyW
RegSetValueExW
RegQueryInfoKeyW
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
RegCreateKeyExW
RegDeleteValueW
RegEnumKeyExW
RegEnumValueW
RegFlushKey
shell32
SHGetKnownFolderPath
CommandLineToArgvW
kernel32
RtlLookupFunctionEntry
GetProcessHeap
FreeEnvironmentStringsW
GetEnvironmentStringsW
FindNextFileA
CreateFileW
GetFileAttributesW
GetFileTime
SetFileTime
CloseHandle
GetLastError
LocalFree
FormatMessageW
GetSystemInfo
GetComputerNameW
SetCurrentDirectoryW
GetCurrentDirectoryW
CreateDirectoryW
DeleteFileW
FindClose
FindFirstFileW
GetFileAttributesExW
GetFileInformationByHandle
GetFullPathNameW
GetLogicalDrives
GetLongPathNameW
RemoveDirectoryW
GetTempPathW
SetErrorMode
DeviceIoControl
GetProcAddress
CopyFileW
MoveFileW
FileTimeToSystemTime
FindFirstFileExW
FindNextFileW
GetLocalTime
FlushFileBuffers
GetFileType
ReadFile
SetEndOfFile
SetFilePointerEx
WriteFile
CreateFileMappingW
MapViewOfFile
UnmapViewOfFile
MoveFileExW
GetSystemDirectoryW
LoadLibraryW
GetLocaleInfoW
GetUserDefaultLCID
GetModuleHandleW
CompareStringW
OutputDebugStringW
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
SetEvent
ResetEvent
WaitForSingleObjectEx
CreateEventW
RtlCaptureContext
HeapSize
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
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
SystemTimeToTzSpecificLocalTime
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
SetEnvironmentVariableW
GetStringTypeW
IsValidCodePage
GetOEMCP
FindFirstFileExA
Sections
.text Size: 1.5MB - Virtual size: 1.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 656KB - Virtual size: 655KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 15KB - Virtual size: 20KB
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
.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: 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