Static task
static1
Behavioral task
behavioral1
Sample
2024-06-10_18b94c614c8f8fde8a65ea3af6c6f2a7_ryuk.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-06-10_18b94c614c8f8fde8a65ea3af6c6f2a7_ryuk.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-10_18b94c614c8f8fde8a65ea3af6c6f2a7_ryuk
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Size
88KB
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MD5
18b94c614c8f8fde8a65ea3af6c6f2a7
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SHA1
a2e0bcde5c92f793b55cbe442b85a7766aa05afa
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SHA256
6630887a84856400b21355b6d889250e10d3e0b611f0cfbc4d9ed2274b3bc3a4
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SHA512
736affc9d6cdb8ced60a1061e39659217aa7a726d7328b14c15be1b9b5698b10d0cf2538e6bf9d281e0949e2f2dcbb9bfff415bbf14e6185663e1df8858a1a4d
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SSDEEP
1536:fcA3rdqAskjspjgbHuLs6cFLlxgpQrsW6m6dc9dlpiigrhVRazc:f73rlojEOQTFL7sQ8mAU1grhVf
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-06-10_18b94c614c8f8fde8a65ea3af6c6f2a7_ryuk
Files
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2024-06-10_18b94c614c8f8fde8a65ea3af6c6f2a7_ryuk.exe windows:6 windows x64 arch:x64
75023d1aaa9742c3badde875bddd15dc
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
Process32FirstW
Process32NextW
CreateToolhelp32Snapshot
GetModuleHandleW
GetProcAddress
GetModuleFileNameA
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
RtlUnwindEx
RtlPcToFileHeader
RaiseException
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
ExitProcess
GetModuleHandleExW
GetStdHandle
WriteFile
GetModuleFileNameW
MultiByteToWideChar
WideCharToMultiByte
GetACP
HeapFree
HeapAlloc
LCMapStringW
CloseHandle
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetStdHandle
GetFileType
GetStringTypeW
GetProcessHeap
HeapSize
HeapReAlloc
FlushFileBuffers
GetConsoleCP
GetConsoleMode
SetFilePointerEx
WriteConsoleW
CreateFileW
advapi32
RegCloseKey
RegSetValueExA
RegCreateKeyA
Sections
.text Size: 40KB - Virtual size: 40KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 35KB - Virtual size: 35KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 2KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 512B - Virtual size: 188B
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: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ