Static task
static1
Behavioral task
behavioral1
Sample
2023-07-14_7ac5351fc1b3fdebbae57bae1f60902c_ryuk.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
2023-07-14_7ac5351fc1b3fdebbae57bae1f60902c_ryuk.exe
Resource
win10v2004-20230703-en
General
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Target
2023-07-14_7ac5351fc1b3fdebbae57bae1f60902c_ryuk
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Size
168KB
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MD5
7ac5351fc1b3fdebbae57bae1f60902c
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SHA1
4db95270a561af309582fa7403902083855bf197
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SHA256
bbce8e4f6eb21bd50c5e7919494811f235640aafaf8f3dbd136052c694ed63db
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SHA512
35df9e009676f34ebae0fa77169b20bcccb94b7bbe8247da728ca023b5f3752729367ab3ff0523d8668b895c3a2a90cd4d23aff1ef0a02357eabac612401a335
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SSDEEP
3072:uvI829P8/Pw5LmWeyli3wjZfnU4MB86hoVKdXa3:OT2W/Pw5qjylH1/r
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2023-07-14_7ac5351fc1b3fdebbae57bae1f60902c_ryuk
Files
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2023-07-14_7ac5351fc1b3fdebbae57bae1f60902c_ryuk.exe windows x64
3d84250cdbe08a9921b4fb008881914b
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
OpenProcess
CreateToolhelp32Snapshot
Sleep
GetLastError
Process32NextW
GetCurrentThread
LoadLibraryA
GlobalAlloc
DeleteFileW
Process32FirstW
GetModuleHandleA
CloseHandle
HeapAlloc
GetWindowsDirectoryW
GetProcAddress
VirtualAllocEx
LocalFree
GetProcessHeap
FreeLibrary
CreateRemoteThread
VirtualFreeEx
GetVersionExW
CreateFileW
GetModuleFileNameW
GetCurrentProcess
GetCommandLineW
SetLastError
HeapFree
GlobalFree
WriteConsoleW
SetFilePointerEx
HeapReAlloc
HeapSize
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwindEx
RaiseException
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
ExitProcess
GetModuleHandleExW
GetStdHandle
WriteFile
GetModuleFileNameA
MultiByteToWideChar
WideCharToMultiByte
GetACP
LCMapStringW
GetFileType
FindClose
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetCPInfo
GetCommandLineA
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetStdHandle
GetStringTypeW
FlushFileBuffers
GetConsoleCP
GetConsoleMode
WriteProcessMemory
advapi32
SystemFunction036
LookupPrivilegeValueW
AdjustTokenPrivileges
ImpersonateSelf
OpenProcessToken
OpenThreadToken
LookupAccountSidW
GetTokenInformation
shell32
CommandLineToArgvW
ShellExecuteW
ShellExecuteA
Sections
.text Size: 88KB - Virtual size: 88KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 43KB - Virtual size: 43KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 28KB - Virtual size: 48KB
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: 168B
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