Static task
static1
Behavioral task
behavioral1
Sample
2024-05-01_0897549f91b0484c0f6111b134071cb1_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-01_0897549f91b0484c0f6111b134071cb1_ryuk.exe
Resource
win10v2004-20240419-en
General
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Target
2024-05-01_0897549f91b0484c0f6111b134071cb1_ryuk
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Size
385KB
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MD5
0897549f91b0484c0f6111b134071cb1
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SHA1
705f26cb54adf368e639d56fd4b50a4f2b9a275a
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SHA256
e8e7e7f5f731c34082c7f1993dab1dedd676826144b5794bbb4d5d2420dd4693
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SHA512
e0fd9e0b65266f4d2c69431caa6d38eec076de7648d32dd73b4e8374199507b1725503e3d230d6af781c3a6f6ccaad372c97245dc9ba3b9de7c548f3a47afe10
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SSDEEP
6144:1rJTYYGTy+Me6lMuCvGopVA1GOZzSN48ohBN0XOg/sH4NRRfVMm/Lt8:IYG7s6jlLqVmNBoBUOksHyRf6m/Lt
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-01_0897549f91b0484c0f6111b134071cb1_ryuk
Files
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2024-05-01_0897549f91b0484c0f6111b134071cb1_ryuk.exe windows:6 windows x64 arch:x64
59fb3ae22aa6511687c0a1a5ba835479
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
GetProcessHeap
CreateFileA
CloseHandle
ConvertThreadToFiber
SwitchToFiber
CreateActCtxA
ActivateActCtx
DeactivateActCtx
SetCurrentDirectoryA
GetTempPathA
GetStdHandle
CreateNamedPipeA
ConnectNamedPipe
DisconnectNamedPipe
ExitProcess
VirtualAlloc
GetNamedPipeHandleStateA
DeviceIoControl
GetLocalTime
HeapLock
RaiseException
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
GetLastError
SetLastError
GetCurrentThreadId
HeapAlloc
HeapFree
GetModuleHandleW
GetProcAddress
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
FreeLibrary
LoadLibraryExW
LCMapStringW
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetModuleHandleExW
GetStringTypeW
MultiByteToWideChar
WideCharToMultiByte
HeapSize
HeapReAlloc
GetStartupInfoW
QueryPerformanceCounter
GetCurrentProcessId
InitializeSListHead
RtlUnwindEx
WriteFile
GetModuleFileNameW
FindClose
FindFirstFileExW
FindNextFileW
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetStdHandle
GetFileType
FlushFileBuffers
GetConsoleCP
GetConsoleMode
SetFilePointerEx
WriteConsoleW
CreateFileW
Sections
.text Size: 66KB - Virtual size: 65KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 193KB - Virtual size: 192KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 118KB - Virtual size: 123KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 4KB - Virtual size: 3KB
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: 512B - Virtual size: 480B
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