Static task
static1
Behavioral task
behavioral1
Sample
2024-07-25_0e4dac346f47b1d662475d34a0fc0eef_cobalt-strike_ryuk.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-07-25_0e4dac346f47b1d662475d34a0fc0eef_cobalt-strike_ryuk.exe
Resource
win10v2004-20240709-en
General
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Target
2024-07-25_0e4dac346f47b1d662475d34a0fc0eef_cobalt-strike_ryuk
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Size
689KB
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MD5
0e4dac346f47b1d662475d34a0fc0eef
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SHA1
013b34f12e8126c0fb2f9607af6a8b9b60ed9fbd
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SHA256
25fc7e1412f5d28e07b4c10c321b572d84efb5fa42b454513254603b0491e015
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SHA512
dbc1bb0cb4585b0928942bca059ad5f6826222ddc0f27fe304ac5819708ba6cab276e446c8fabda3d55e0cacdabb8aa836d0decb0356ea85a4a690cfb28a3288
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SSDEEP
6144:F88OyIfPiHjx8Ib8Z0uigbn+SPYT23AeA5KM9EVNtQK:zHHjWZ0VgbnfJAeMKMWX+K
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-07-25_0e4dac346f47b1d662475d34a0fc0eef_cobalt-strike_ryuk
Files
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2024-07-25_0e4dac346f47b1d662475d34a0fc0eef_cobalt-strike_ryuk.exe windows:6 windows x64 arch:x64
e0e01441e84c7486c5cfacbdfefb2d9b
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
AcquireSRWLockExclusive
AreFileApisANSI
CloseHandle
CompareStringW
ConvertThreadToFiber
CreateFileW
CreateProcessA
CreateProcessW
DecodePointer
DeleteCriticalSection
DeleteFiber
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
FindClose
FindFirstFileExW
FindFirstFileW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetExitCodeProcess
GetFileAttributesExW
GetFileInformationByHandleEx
GetFileSizeEx
GetFileType
GetLastError
GetLocaleInfoEx
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
GetUserDefaultLCID
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringEx
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
LocalFree
MultiByteToWideChar
QueryPerformanceCounter
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEnvironmentVariableW
SetFileInformationByHandle
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SwitchToFiber
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WaitForSingleObject
WakeAllConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiW
advapi32
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
user32
GetLastInputInfo
Sections
.text Size: 204KB - Virtual size: 204KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 69KB - Virtual size: 69KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 335KB - Virtual size: 341KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 11KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gxfg Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.retplne Size: 512B - Virtual size: 140B
.tls Size: 512B - Virtual size: 9B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
_RDATA Size: 512B - Virtual size: 500B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 56KB - Virtual size: 55KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ