GetHandleVerifier
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-08_5cf215aa50a926056e8c1b4660b0fb65_ryuk.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-08_5cf215aa50a926056e8c1b4660b0fb65_ryuk.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-08_5cf215aa50a926056e8c1b4660b0fb65_ryuk
-
Size
1.7MB
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MD5
5cf215aa50a926056e8c1b4660b0fb65
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SHA1
804b3556de97d1753979aaec261d048dd892af3b
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SHA256
a0859961fa9903565f91381f4ba35c7e9da4456e9486c1c28d69cbc6db0622bd
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SHA512
3d5c11b4ab97179ce4fa4081b97ea4df0bfedc60696ca4f072f5a4dcf9af86b1cd55f752f688648957ff6cc88043a118265f19a01ef5d7077d44f60d275b58b0
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SSDEEP
49152:haQNtFopLvwkW32YtMAuMTiXuSOWxZjbf:haQNj335tnC3
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-01-08_5cf215aa50a926056e8c1b4660b0fb65_ryuk
Files
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2024-01-08_5cf215aa50a926056e8c1b4660b0fb65_ryuk.exe windows:5 windows x64 arch:x64
7d2cead0fc0056b60cf85e8f03111fee
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
advapi32
AddAce
BuildTrusteeWithSidW
ConvertStringSidToSidW
CopySid
CreateProcessAsUserW
EventRegister
EventSetInformation
EventUnregister
EventWrite
GetAclInformation
GetLengthSid
GetNamedSecurityInfoW
GetSecurityDescriptorControl
GetSecurityDescriptorDacl
GetSecurityDescriptorGroup
GetSecurityDescriptorOwner
GetSecurityDescriptorSacl
GetSidLengthRequired
GetSidSubAuthority
InitializeAcl
InitializeSecurityDescriptor
InitializeSid
IsValidAcl
IsValidSecurityDescriptor
IsValidSid
MakeAbsoluteSD
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
RegisterServiceCtrlHandlerW
SetEntriesInAclW
SetNamedSecurityInfoW
SetSecurityDescriptorDacl
SetSecurityDescriptorGroup
SetSecurityDescriptorOwner
SetSecurityInfo
SetServiceStatus
StartServiceCtrlDispatcherW
oleaut32
SysAllocStringByteLen
SysStringByteLen
user32
AllowSetForegroundWindow
GetActiveWindow
UnregisterClassW
winmm
timeGetTime
kernel32
AcquireSRWLockExclusive
AcquireSRWLockShared
AssignProcessToJobObject
CloseHandle
CompareStringW
CreateDirectoryW
CreateEventW
CreateFileA
CreateFileMappingW
CreateFileW
CreateProcessW
CreateThread
DecodePointer
DeleteCriticalSection
DeleteFileW
DeleteProcThreadAttributeList
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesW
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProcessId
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadId
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetVersionExW
GetWindowsDirectoryW
HeapAlloc
HeapDestroy
HeapFree
HeapReAlloc
HeapSetInformation
HeapSize
InitOnceExecuteOnce
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeProcThreadAttributeList
InitializeSListHead
InitializeSRWLock
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
MapViewOfFile
MoveFileExW
MultiByteToWideChar
OpenProcess
OutputDebugStringA
OutputDebugStringW
QueryFullProcessImageNameA
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RemoveDirectoryW
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointer
SetFilePointerEx
SetFileTime
SetHandleInformation
SetLastError
SetStdHandle
SetThreadInformation
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SystemTimeToFileTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
TzSpecificLocalTimeToSystemTime
UnhandledExceptionFilter
UnmapViewOfFile
UnregisterWaitEx
UpdateProcThreadAttribute
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrlenA
ole32
CoAddRefServerProcess
CoImpersonateClient
CoInitializeEx
CoInitializeSecurity
CoRegisterClassObject
CoRegisterInitializeSpy
CoReleaseServerProcess
CoResumeClassObjects
CoRevertToSelf
CoRevokeClassObject
CoRevokeInitializeSpy
CoTaskMemFree
CoUninitialize
IIDFromString
crypt32
CryptProtectData
CryptUnprotectData
rpcrt4
I_RpcOpenClientProcess
userenv
CreateEnvironmentBlock
DestroyEnvironmentBlock
shell32
CommandLineToArgvW
ord680
SHGetFolderPathW
SHGetKnownFolderPath
ShellExecuteExW
shlwapi
PathMatchSpecW
ntdll
NtClose
NtOpenKeyEx
NtQueryValueKey
RtlFormatCurrentUserKeyPath
RtlFreeUnicodeString
RtlInitUnicodeString
api-ms-win-core-winrt-l1-1-0
RoInitialize
RoUninitialize
Exports
Exports
Sections
.text Size: 1.3MB - Virtual size: 1.3MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 211KB - Virtual size: 210KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 62KB - Virtual size: 109KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 44KB - Virtual size: 43KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 48B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gxfg Size: 11KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.retplne Size: 512B - Virtual size: 156B
.tls Size: 1024B - Virtual size: 513B
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
.rsrc Size: 6KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 6KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ