Static task
static1
Behavioral task
behavioral1
Sample
2024-03-12_f1a9847484806401ae1bcb5849f94607_ryuk.exe
Resource
win7-20240221-en
General
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Target
2024-03-12_f1a9847484806401ae1bcb5849f94607_ryuk
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Size
691KB
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MD5
f1a9847484806401ae1bcb5849f94607
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SHA1
2ff5f5ab4d5a42d221d9e36e779aee66bb9e51e7
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SHA256
68e3e732019b48203715fa1a3bc05c4ee592e6e902cc0c57382a48b38afe0501
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SHA512
0db2749e07b2ddb533e4fb61240aceabd6d1ee0a25802b3cdb5d53fcf49cfef4ec16f8a5a01ffc827cd16f709784c797214cc00915006aa70ecd5d6d5f89db37
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SSDEEP
12288:4racl3u3JW2gh92q5H8k/jLUKciwGEBg/jKypVrtvzESII:aaclkJW2Q2tA+Bg/jNRV
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-03-12_f1a9847484806401ae1bcb5849f94607_ryuk
Files
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2024-03-12_f1a9847484806401ae1bcb5849f94607_ryuk.exe windows:6 windows x64 arch:x64
9ed937701e26c6512a2f38dd374ee754
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
kernel32
CreateFileA
CreateFileW
GetDriveTypeA
GetFileAttributesW
QueryDosDeviceW
GetVolumeNameForVolumeMountPointW
CloseHandle
SetErrorMode
GetOverlappedResult
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
SetEvent
WaitForSingleObject
CreateEventA
CreateThread
SetThreadPriority
GetModuleHandleW
GetProcAddress
WaitForMultipleObjects
GetVolumeInformationA
ReadDirectoryChangesW
MultiByteToWideChar
WideCharToMultiByte
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
RtlUnwindEx
GetLastError
SetLastError
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
GetStdHandle
WriteFile
GetModuleFileNameA
ExitProcess
GetModuleHandleExW
GetCommandLineA
GetCommandLineW
GetACP
HeapFree
HeapAlloc
CompareStringW
LCMapStringW
GetFileType
FlushFileBuffers
GetConsoleCP
GetConsoleMode
FindClose
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
SetStdHandle
GetStringTypeW
GetProcessHeap
SetFilePointerEx
WriteConsoleW
HeapSize
HeapReAlloc
ReadFile
ReadConsoleW
RaiseException
Sections
.text Size: 73KB - Virtual size: 73KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 39KB - Virtual size: 38KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 7KB
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: 160B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
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