Static task
static1
Behavioral task
behavioral1
Sample
2024-06-19_a61a714228bd1b9c8d1aa9fd3e4250ac_cobalt-strike_ryuk.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-06-19_a61a714228bd1b9c8d1aa9fd3e4250ac_cobalt-strike_ryuk.exe
Resource
win10v2004-20240611-en
General
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Target
2024-06-19_a61a714228bd1b9c8d1aa9fd3e4250ac_cobalt-strike_ryuk
-
Size
236KB
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MD5
a61a714228bd1b9c8d1aa9fd3e4250ac
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SHA1
8fd9f4fbd6b237b1133d0a15006f8694d7ceef04
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SHA256
139de97aa9972a1a4e54e0969eaa6596782172ac2f5def9c185a65e529b7bce3
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SHA512
9140044a245a448c69e62ed3fc53e815ec0195e2a3596fb206865d2243795e916f8e72b07ca1115a6dd1a89e635739d44929541e661984f5b7da9d903af2fcf9
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SSDEEP
3072:2uU/Tb6Fww4ihHJsygzgRUoOSeUcIMR4hiLfgBhjmze92xA/k+UO/tCYB2Qd:CX0J9Jsy+gv/YN48Lfg/mC92bMC
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-06-19_a61a714228bd1b9c8d1aa9fd3e4250ac_cobalt-strike_ryuk
Files
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2024-06-19_a61a714228bd1b9c8d1aa9fd3e4250ac_cobalt-strike_ryuk.exe windows:6 windows x64 arch:x64
6618fe8ccf6019c5e071d9c5d307d6c9
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
CloseHandle
CompareStringW
CreateFileW
DecodePointer
DeleteCriticalSection
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleA
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
MultiByteToWideChar
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WakeAllConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
Sections
.text Size: 149KB - Virtual size: 148KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 60KB - Virtual size: 59KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 5KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 9KB - Virtual size: 8KB
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: 7KB - Virtual size: 7KB
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
.reloc Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ