Static task
static1
Behavioral task
behavioral1
Sample
2025-03-10_22876a5c21c852ae5481a34daa9f700f_cobalt-strike_ryuk.exe
Resource
win7-20241010-en
General
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Target
2025-03-10_22876a5c21c852ae5481a34daa9f700f_cobalt-strike_ryuk
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Size
434KB
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MD5
22876a5c21c852ae5481a34daa9f700f
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SHA1
952fa56ebac67a76a5e783e2d30a39db4eb28625
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SHA256
c45c9f642d59535a4e75a0ddba3e8cc5b05307d533cbbd4a3bd4d664ca563624
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SHA512
0868353ab768f1a6b925e3926532e91028423e01d4bdce63b2f41a2a6cd7dcb581c322896f0e68aca76ce976cfcf91c88b7709cb1d6a3436e6ad3368719ffd90
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SSDEEP
12288:dQSynczytI/cAPzOgccRye/RKvj6+OTsEP05RPJAdGy:aNcW2KvjiP0LJ+R
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2025-03-10_22876a5c21c852ae5481a34daa9f700f_cobalt-strike_ryuk
Files
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2025-03-10_22876a5c21c852ae5481a34daa9f700f_cobalt-strike_ryuk.exe windows:6 windows x64 arch:x64
de542ff62037646d881552e6033340c0
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
advapi32
AdjustTokenPrivileges
CloseServiceHandle
CreateProcessAsUserW
CryptAcquireContextA
CryptCreateHash
CryptDestroyHash
CryptDestroyKey
CryptGetHashParam
CryptHashData
CryptReleaseContext
CryptVerifySignatureA
GetTokenInformation
LookupPrivilegeValueA
OpenProcessToken
OpenSCManagerA
OpenServiceW
QueryServiceConfigW
QueryServiceStatusEx
RegCloseKey
RegCreateKeyExW
RegEnumKeyExW
RegGetValueW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
RegSetValueExW
StartServiceW
shell32
SHGetKnownFolderPath
ShellExecuteExW
ws2_32
ntohl
shlwapi
PathAppendW
PathCanonicalizeW
PathCommonPrefixW
PathIsUNCServerShareW
PathRemoveFileSpecW
PathStripPathW
PathStripToRootW
PathUnquoteSpacesW
gdi32
SelectObject
user32
CopyRect
DialogBoxParamW
DrawTextW
EndDialog
GetClientRect
GetDC
GetDesktopWindow
GetDlgItem
GetParent
GetWindowLongPtrW
GetWindowRect
LoadIconW
OffsetRect
ReleaseDC
ScreenToClient
SendMessageW
SetTimer
SetWindowLongPtrW
SetWindowPos
SetWindowTextW
WaitForInputIdle
wsprintfW
ole32
CoTaskMemFree
rpcrt4
RpcStringFreeW
UuidCreate
UuidToStringW
wintrust
WinVerifyTrust
kernel32
ActivateActCtx
CloseHandle
CompareStringW
CopyFileW
CreateActCtxW
CreateDirectoryW
CreateEventW
CreateFileW
CreateProcessW
CreateThread
DeactivateActCtx
DeleteCriticalSection
DeleteFileW
DeviceIoControl
EncodePointer
EnterCriticalSection
ExitProcess
ExitThread
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindFirstFileW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetDriveTypeW
GetEnvironmentStringsW
GetFileAttributesExW
GetFileAttributesW
GetFileInformationByHandle
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetPrivateProfileStringW
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTickCount
GetTimeZoneInformation
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessInJob
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LocalAlloc
LocalFree
LockFile
MoveFileExW
MultiByteToWideChar
OpenProcess
PeekNamedPipe
QueryInformationJobObject
QueryPerformanceCounter
RaiseException
ReadConsoleW
ReadFile
RemoveDirectoryW
ResetEvent
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetCurrentDirectoryW
SetDllDirectoryW
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointer
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
UnlockFile
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WideCharToMultiByte
WriteConsoleW
WriteFile
Sections
.text Size: 223KB - Virtual size: 223KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 68KB - Virtual size: 67KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 5KB - Virtual size: 16KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 9KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 40B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gxfg Size: 9KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.tls Size: 512B - Virtual size: 9B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.voltbl Size: 512B - Virtual size: 61B
_RDATA Size: 512B - Virtual size: 244B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 96KB - Virtual size: 95KB
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
.zero Size: 8KB - Virtual size: 4KB
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ