Static task
static1
Behavioral task
behavioral1
Sample
2024-09-18_748d8332cc057e60b93473b4081ddb62_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-18_748d8332cc057e60b93473b4081ddb62_ryuk.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-18_748d8332cc057e60b93473b4081ddb62_ryuk
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Size
23.0MB
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MD5
748d8332cc057e60b93473b4081ddb62
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SHA1
53eb5906c263e50e9ec5ede25b4e6b2c40f26a0f
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SHA256
548cbe18278fc680a12c56b6cbd2e44dd883db0dcc28bfb576ef0564dec4259b
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SHA512
802e33caada97e0119bc7789eb29993d280142c68cad02465d8241e2cde9b6e5b15101539b19c95e1dba234c5e264b75a56a51c78c25ce7a3d766a45e15fa0c3
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SSDEEP
393216:N8VaROP+piHkIvhQiRoTJV8zNM870TIueUQjBxKN2TgJqybiqM/s7EUaEkop:nOsp+hQiR60zS8IUu6LitJVMUEtmp
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-09-18_748d8332cc057e60b93473b4081ddb62_ryuk
Files
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2024-09-18_748d8332cc057e60b93473b4081ddb62_ryuk.exe windows:6 windows x64 arch:x64
be90f80d5e3368ce80d8c45b2ea499c2
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
kernel32
GetLastError
GetFileAttributesA
CreateFileA
LoadLibraryA
CloseHandle
GetProcAddress
SetEnvironmentVariableA
FormatMessageA
QueryPerformanceCounter
GetComputerNameA
Sleep
WriteConsoleW
CreateFileW
HeapReAlloc
HeapSize
SetFilePointerEx
GetConsoleMode
GetConsoleCP
FlushFileBuffers
GetProcessHeap
GetStringTypeW
SetStdHandle
DuplicateHandle
ReleaseMutex
GetCurrentThreadId
CreateMutexA
CreatePipe
VirtualAlloc
GetCurrentProcess
GetFileSizeEx
GetModuleFileNameA
ReadFile
FreeEnvironmentStringsW
GetEnvironmentStringsW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
GetCurrentProcessId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwindEx
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
ExitProcess
GetModuleHandleExW
GetStdHandle
WriteFile
GetModuleFileNameW
HeapFree
HeapAlloc
LCMapStringW
GetFileType
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
MultiByteToWideChar
WideCharToMultiByte
RaiseException
user32
GetMessageA
DispatchMessageA
LoadCursorA
ShowWindow
GetWindowTextA
RegisterClassA
DefWindowProcA
CreateWindowExA
TranslateMessage
SendMessageA
PostQuitMessage
UpdateWindow
MessageBoxA
advapi32
RegQueryValueExA
AllocateAndInitializeSid
FreeSid
CheckTokenMembership
RegOpenKeyExA
RegDeleteValueA
RegSetKeyValueA
RegCloseKey
shell32
ShellExecuteExA
Sections
.text Size: 80KB - Virtual size: 79KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
mysectio Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 22.9MB - Virtual size: 22.9MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 512B - Virtual size: 164B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ