Static task
static1
Behavioral task
behavioral1
Sample
2024-02-03_10ccd6f5cf35da90162c1cf2a15e47d8_ryuk.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-03_10ccd6f5cf35da90162c1cf2a15e47d8_ryuk.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-03_10ccd6f5cf35da90162c1cf2a15e47d8_ryuk
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Size
123KB
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MD5
10ccd6f5cf35da90162c1cf2a15e47d8
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SHA1
6600f214e6cc2bc989cbdde55cf8257396e6e64e
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SHA256
6f0c3c31d8aa492923fef4358cd1640f2663b7200f21cea912926e2a9b595536
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SHA512
16595eec0bf06e678afd9057a96d0754adbc4c14fae851b1ec867610814bcc578e6b66d5d22eba2acd1407f450f46d76c224da5b066ba7bf65e42f67df3d2cc0
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SSDEEP
3072:CSoEfQ1wVd/DlPtyXFQ4CKbjY1xxTvBFIzDlSCa:OEfQ1wVd/DhkDVYFI
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-02-03_10ccd6f5cf35da90162c1cf2a15e47d8_ryuk
Files
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2024-02-03_10ccd6f5cf35da90162c1cf2a15e47d8_ryuk.exe windows:5 windows x64 arch:x64
afd22569c3cb4c39ce5bd8efda5d4752
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
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwindEx
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
ExitProcess
GetModuleHandleExW
GetStdHandle
WriteFile
GetModuleFileNameA
MultiByteToWideChar
WideCharToMultiByte
GetCommandLineA
GetCommandLineW
GetACP
HeapFree
HeapAlloc
CompareStringW
LCMapStringW
GetFileType
CloseHandle
FlushFileBuffers
GetConsoleCP
GetConsoleMode
FindClose
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
SetStdHandle
GetStringTypeW
GetProcessHeap
SetFilePointerEx
WriteConsoleW
CreateFileW
ReadFile
ReadConsoleW
HeapSize
HeapReAlloc
SetEndOfFile
RaiseException
Sections
.text Size: 74KB - Virtual size: 73KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 38KB - 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
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ