notification_helper.exe.pdb
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-27_821186a5c7c2d670716ab40a9c709802_cobalt-strike_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-27_821186a5c7c2d670716ab40a9c709802_cobalt-strike_ryuk.exe
Resource
win10v2004-20240802-en
General
-
Target
2024-09-27_821186a5c7c2d670716ab40a9c709802_cobalt-strike_ryuk
-
Size
707KB
-
MD5
821186a5c7c2d670716ab40a9c709802
-
SHA1
cdb7b35aff5b33f87abb3de9df17cf053aed5fe7
-
SHA256
cd042bd3c538f6623192a19feb7f58f0d1582c53ea1712a526a55fa3a1085f53
-
SHA512
562daa83b3243fff5bcc42b62ce10612b4dd320bd3d84115d3afb31c15bebfd39ceb7626ca84a71e848d42fb4d2c45e6d68f1957216c844d9c8f0b51351deafe
-
SSDEEP
12288:AXWndzr6Z3KasMn549jR7vGKEYcTzL+/KLXUrF4dj+nAuoA:AmdiZiiKJVML+kXUhXD
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-09-27_821186a5c7c2d670716ab40a9c709802_cobalt-strike_ryuk
Files
-
2024-09-27_821186a5c7c2d670716ab40a9c709802_cobalt-strike_ryuk.exe windows:5 windows x64 arch:x64
6835cba878418de66ef67db057970e4b
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
PDB Paths
Imports
api-ms-win-core-winrt-error-l1-1-0
RoOriginateError
shell32
CommandLineToArgvW
SHGetFolderPathW
SHGetKnownFolderPath
ShellExecuteExW
user32
AllowSetForegroundWindow
SendInput
kernel32
AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateDirectoryW
CreateEventW
CreateFileW
CreateNamedPipeW
CreateProcessW
CreateThread
DecodePointer
DeleteCriticalSection
DeleteFileW
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExpandEnvironmentStringsW
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameExW
GetConsoleCP
GetConsoleMode
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetFileAttributesW
GetFileInformationByHandle
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessId
GetProcessTimes
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadId
GetThreadPriority
GetTickCount
GetTimeZoneInformation
GetUserDefaultLCID
GetUserDefaultLangID
GetVersion
GetVersionExW
GetWindowsDirectoryW
HeapAlloc
HeapCreate
HeapDestroy
HeapFree
HeapReAlloc
HeapSetInformation
HeapSize
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
LockFileEx
MoveFileW
MultiByteToWideChar
OpenProcess
OutputDebugStringA
OutputDebugStringW
PeekNamedPipe
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RemoveDirectoryW
ReplaceFileW
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointerEx
SetLastError
SetNamedPipeHandleState
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepEx
SwitchToThread
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TransactNamedPipe
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
UnlockFileEx
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WaitNamedPipeW
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpW
ole32
CoAddRefServerProcess
CoRegisterClassObject
CoReleaseServerProcess
CoResumeClassObjects
CoRevokeClassObject
CoTaskMemFree
version
GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW
shlwapi
PathMatchSpecW
winmm
timeGetTime
advapi32
EventRegister
EventUnregister
EventWrite
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
SystemFunction036
dbghelp
SymCleanup
SymFromAddr
SymGetLineFromAddr64
SymGetSearchPathW
SymInitialize
SymSetOptions
SymSetSearchPathW
Exports
Exports
GetHandleVerifier
Sections
.text Size: 523KB - Virtual size: 523KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 141KB - Virtual size: 140KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 10KB - Virtual size: 31KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 21KB - Virtual size: 21KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 16B
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
CPADinfo Size: 512B - Virtual size: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 6KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ