notification_helper.exe.pdb
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-13_13f274cdaabed6e30848fc2a30f6c465_ryuk.exe
Resource
win7-20231215-en
General
-
Target
2024-02-13_13f274cdaabed6e30848fc2a30f6c465_ryuk
-
Size
1.6MB
-
MD5
13f274cdaabed6e30848fc2a30f6c465
-
SHA1
8fbbab507a581f6dcee5725c34a620583796f9bb
-
SHA256
88eba6dbc1aa8a826332d14cab03d874e705098d601ea0708f18470461c17ad8
-
SHA512
8113402db3b4e1cbb3d9a1fa46c4204538e89cb16fb29ca87960bf3b9e017e33940b2ca39e72a83c54f8ac23a239a7cbf29db7cfd55b362c56db867bb4e95347
-
SSDEEP
24576:AePGFndSguwYArtrVtsxg1kcfdYN9PNI2XyziNiR3Uaw:AePGFdPuwYAB/su1fONBNI2XyeNoS
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-02-13_13f274cdaabed6e30848fc2a30f6c465_ryuk
Files
-
2024-02-13_13f274cdaabed6e30848fc2a30f6c465_ryuk.exe windows:5 windows x64 arch:x64
acd0f1a7bbc0609eac250e95563d6392
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
PDB Paths
Imports
api-ms-win-core-winrt-error-l1-1-0
RoOriginateError
advapi32
BuildExplicitAccessWithNameW
BuildSecurityDescriptorW
ConvertStringSecurityDescriptorToSecurityDescriptorW
EventRegister
EventUnregister
EventWrite
GetUserNameW
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
SystemFunction036
shell32
CommandLineToArgvW
SHGetFolderPathW
SHGetKnownFolderPath
ShellExecuteExW
user32
AllowSetForegroundWindow
SendInput
UnregisterClassW
kernel32
AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateDirectoryW
CreateEventW
CreateFileW
CreateNamedPipeW
CreateProcessW
CreateThread
DecodePointer
DeleteCriticalSection
DeleteFileW
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetFileAttributesW
GetFileInformationByHandle
GetFileSizeEx
GetFileTime
GetFileType
GetFullPathNameW
GetHandleInformation
GetLastError
GetLocalTime
GetLocaleInfoW
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
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
LockFileEx
MultiByteToWideChar
OpenProcess
OutputDebugStringA
OutputDebugStringW
PeekNamedPipe
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RemoveDirectoryW
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetNamedPipeHandleState
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SleepEx
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TransactNamedPipe
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
UnlockFileEx
UnregisterWaitEx
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WaitNamedPipeW
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpW
ole32
CoAddRefServerProcess
CoInitializeEx
CoRegisterClassObject
CoRegisterInitializeSpy
CoReleaseServerProcess
CoResumeClassObjects
CoRevokeClassObject
CoRevokeInitializeSpy
CoTaskMemFree
CoUninitialize
winmm
timeGetTime
Exports
Exports
GetHandleVerifier
Sections
.text Size: 882KB - Virtual size: 881KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 152KB - Virtual size: 151KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 38KB - Virtual size: 68KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 34KB - Virtual size: 34KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 40B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.retplne Size: 512B - Virtual size: 12B
.tls Size: 512B - Virtual size: 297B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
CPADinfo Size: 512B - Virtual size: 64B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
_RDATA Size: 512B - Virtual size: 148B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - Virtual size: 2KB
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