Static task
static1
Behavioral task
behavioral1
Sample
2024-01-23_3184da3c93fddf8cb07c4fddf8c8d7f5_ryuk.exe
Resource
win7-20231215-en
General
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Target
2024-01-23_3184da3c93fddf8cb07c4fddf8c8d7f5_ryuk
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Size
1.1MB
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MD5
3184da3c93fddf8cb07c4fddf8c8d7f5
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SHA1
6527d1b63794df91acdd0d3df2e44ba23141c373
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SHA256
aeb8b781cc401d490ccded6a625431c15e76abe6b57eb44ff2b0ca9cc0349697
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SHA512
73c9ce8c354e7ee31cfb5826aa9d3a4b05566c9a6f22508f4d4a0d061c51bcf03691ec6fbdf9bace5fbc6dfeb569bd6515cc34f618cf10ad484659f0e6282106
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SSDEEP
24576:fSi1SoCU5qJSr1eWPSCsP0MugC6eTCEQkbvK8N3t3QVkLhoo+SVfhl2/:XS7PLjeTCErvL73RLSo+2fhl
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-01-23_3184da3c93fddf8cb07c4fddf8c8d7f5_ryuk
Files
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2024-01-23_3184da3c93fddf8cb07c4fddf8c8d7f5_ryuk.exe windows:6 windows x64 arch:x64
4d7ee3dbe35baab5e33b9a84e9397818
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
comctl32
CreatePropertySheetPageA
PropertySheetA
kernel32
SetThreadPriority
SetFilePointer
ResumeThread
GetModuleHandleA
MultiByteToWideChar
GetTempPathA
GetCurrentThread
LoadLibraryA
DeleteFileA
SetStdHandle
GetProcAddress
LocalFree
GetFileSize
RemoveDirectoryA
FreeLibrary
CreateProcessA
FormatMessageA
GetTempFileNameA
GetPrivateProfileIntA
GetPrivateProfileStringA
GetTempPathW
CreateDirectoryA
GetModuleFileNameW
FlushFileBuffers
SetFilePointerEx
SetEndOfFile
GetFileAttributesExW
SetConsoleCtrlHandler
GetProcessHeap
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCPInfo
GetOEMCP
IsValidCodePage
FindNextFileW
FindNextFileA
FindFirstFileExW
FindFirstFileExA
FindClose
CreateThread
WaitForSingleObjectEx
OutputDebugStringW
OutputDebugStringA
GetFullPathNameA
GetFullPathNameW
GetCurrentDirectoryW
SetCurrentDirectoryW
LoadLibraryExA
GetStdHandle
GetCurrentProcess
SetPriorityClass
GetModuleFileNameA
ReadFile
MapViewOfFile
WriteConsoleW
DosDateTimeToFileTime
CreateFileMappingA
CloseHandle
CreateFileA
GetFileAttributesA
GetLastError
UnmapViewOfFile
lstrlenA
SetFileTime
SetLastError
HeapSize
GetTimeZoneInformation
RaiseException
GetStringTypeW
GetConsoleCP
HeapReAlloc
SetEnvironmentVariableW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwindEx
InterlockedPushEntrySList
InterlockedFlushSList
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
WideCharToMultiByte
GetCommandLineA
GetCommandLineW
CreateFileW
GetDriveTypeW
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
WriteFile
ExitProcess
GetModuleHandleExW
GetACP
GetConsoleMode
ReadConsoleW
HeapFree
HeapAlloc
GetDateFormatW
GetTimeFormatW
CompareStringW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
SetEnvironmentVariableA
user32
ReleaseDC
BeginPaint
EndPaint
DispatchMessageA
GetWindowRect
GetFocus
LoadCursorA
GetDC
PostMessageA
GetSystemMetrics
wsprintfA
ShowWindow
MessageBoxA
MoveWindow
RegisterClassA
DefWindowProcA
CreateWindowExA
TranslateMessage
SendDlgItemMessageA
SetDlgItemTextA
SendMessageA
SetCursor
GetDlgItem
PeekMessageA
GetParent
UpdateWindow
gdi32
SelectObject
CreateDIBitmap
SetTextColor
TextOutA
SetBkMode
DeleteObject
CreateSolidBrush
CreateFontA
advapi32
RegDeleteValueA
RegOpenKeyExA
RegCloseKey
RegDeleteKeyA
RegQueryValueExA
RegCreateKeyExA
RegQueryValueA
RegSetValueExA
RegEnumKeyExA
shell32
ShellExecuteA
ole32
CoUninitialize
CoCreateInstance
CoInitialize
Sections
.text Size: 432KB - Virtual size: 431KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 106KB - Virtual size: 105KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 18KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 23KB - Virtual size: 22KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 512B - Virtual size: 372B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 568KB - Virtual size: 572KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE