2024-10-13_f6dc9a9e9e755d42a49e861eaff11516_cobalt-strike_ryuk

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General

Target

2024-10-13_f6dc9a9e9e755d42a49e861eaff11516_cobalt-strike_ryuk
Size

944KB
MD5

f6dc9a9e9e755d42a49e861eaff11516
SHA1

817cc8f9f82bbffe3d9b5fccddd0033cfb1688a6
SHA256

0cca19b424d040c652703d8d5f30f170b495615a4837836884d88be78520400b
SHA512

623c7ddfb23556a0edf6bc105fdd093797685de5ab4cbe45878fd7d216ceeaa74e26f7eed51837cd1fcaf0a23f9615f572a53ba5b10c48c993c34d4d09bcf74e
SSDEEP

12288:xbSQBsNpYtfppjCG0vlLSr9UwesRQrvPvBCQlJBKeR5+n1ovWzlBe:xbSQ26tfzCGuSr9aRHv4cBQpzlk

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-10-13_f6dc9a9e9e755d42a49e861eaff11516_cobalt-strike_ryuk

Files

2024-10-13_f6dc9a9e9e755d42a49e861eaff11516_cobalt-strike_ryuk
.exe windows:5 windows x64 arch:x64

45438ce7d4963cfe476dc0580eaa40a4

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

notification_helper.exe.pdb

Imports

api-ms-win-core-winrt-error-l1-1-0

RoOriginateError

advapi32

BuildExplicitAccessWithNameW
BuildSecurityDescriptorW
ConvertStringSecurityDescriptorToSecurityDescriptorW
EventRegister
EventUnregister
EventWrite
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
SystemFunction036

dbghelp

SymCleanup
SymFromAddr
SymGetLineFromAddr64
SymGetSearchPathW
SymInitialize
SymSetOptions
SymSetSearchPathW

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
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetFileAttributesW
GetFileInformationByHandle
GetFileSizeEx
GetFileTime
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProcessId
GetProcessTimes
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadId
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetUserDefaultLangID
GetVersion
GetVersionExW
GetWindowsDirectoryW
HeapAlloc
HeapFree
HeapReAlloc
HeapSetInformation
HeapSize
InitOnceExecuteOnce
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
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
SetFileInformationByHandle
SetFilePointerEx
SetLastError
SetNamedPipeHandleState
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SleepEx
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TransactNamedPipe
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
UnlockFileEx
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WaitNamedPipeW
WakeAllConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpW

ole32

CoAddRefServerProcess
CoRegisterClassObject
CoReleaseServerProcess
CoResumeClassObjects
CoRevokeClassObject
CoTaskMemFree

version

GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW

winmm

timeGetTime

shlwapi

PathMatchSpecW

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 731KB - Virtual size: 730KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 159KB - Virtual size: 159KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 14KB - Virtual size: 37KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 29KB - Virtual size: 28KB

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: 289B

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

Sharing

General

Malware Config

Signatures

Files

45438ce7d4963cfe476dc0580eaa40a4

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

api-ms-win-core-winrt-error-l1-1-0

advapi32

dbghelp

shell32

user32

kernel32

ole32

version

winmm

shlwapi

Exports

Exports

Sections

.text Size: 731KB - Virtual size: 730KB

.rdata Size: 159KB - Virtual size: 159KB

.data Size: 14KB - Virtual size: 37KB

.pdata Size: 29KB - Virtual size: 28KB

.00cfg Size: 512B - Virtual size: 16B

.tls Size: 512B - Virtual size: 289B

CPADinfo Size: 512B - Virtual size: 56B

.rsrc Size: 2KB - Virtual size: 2KB

.reloc Size: 6KB - Virtual size: 5KB

.text
Size: 731KB - Virtual size: 730KB

.rdata
Size: 159KB - Virtual size: 159KB

.data
Size: 14KB - Virtual size: 37KB

.pdata
Size: 29KB - Virtual size: 28KB

.00cfg
Size: 512B - Virtual size: 16B

.tls
Size: 512B - Virtual size: 289B

CPADinfo
Size: 512B - Virtual size: 56B

.rsrc
Size: 2KB - Virtual size: 2KB

.reloc
Size: 6KB - Virtual size: 5KB