Static task
static1
Behavioral task
behavioral1
Sample
2024-12-28_9d28b3f2746f719fe82a21428f9265ae_cobalt-strike_ryuk.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-12-28_9d28b3f2746f719fe82a21428f9265ae_cobalt-strike_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-28_9d28b3f2746f719fe82a21428f9265ae_cobalt-strike_ryuk
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Size
3.1MB
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MD5
9d28b3f2746f719fe82a21428f9265ae
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SHA1
3acd169f55124db5b2d46a95ffdd48d5a57e3c11
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SHA256
2b1545089a5a1be6fe2ce0fa399d982b4b7995a750a1ea0528695c7eed5f24d4
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SHA512
38c856ab59f7471c9b582c520a6d8b8cc47841c042802797055f8794439ece9c671c0c4922cfcb180af6fe7b4fc9bded48c936b910bc6482acf07ae9434ffb83
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SSDEEP
24576:qiiuUWnfyNSRhmCW5YeLuB7LAFFG3tXEZ83yCfv4vj3gvsceB9rGUoI65zkbu8w8:U+fce/frCAsLrZ+zH8S
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-12-28_9d28b3f2746f719fe82a21428f9265ae_cobalt-strike_ryuk
Files
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2024-12-28_9d28b3f2746f719fe82a21428f9265ae_cobalt-strike_ryuk.exe windows:6 windows x64 arch:x64
25224432afaf13c692f24efcb620c38b
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
CloseHandle
CreateFileW
CreateProcessA
DeleteCriticalSection
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetFileType
GetLastError
GetModuleFileNameA
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
GetThreadContext
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
RaiseException
ReadProcessMemory
ResumeThread
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetFilePointerEx
SetLastError
SetStdHandle
SetThreadContext
SetUnhandledExceptionFilter
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
VirtualAllocEx
WideCharToMultiByte
WriteConsoleW
WriteFile
WriteProcessMemory
Sections
.text Size: 71KB - Virtual size: 71KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 3.0MB - Virtual size: 3.0MB
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: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gxfg Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.retplne Size: 512B - Virtual size: 140B
_RDATA Size: 512B - Virtual size: 500B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 424B
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