2024-04-16_b4bc96aeff48a81d6a5c9558fdd537e7_ryuk_sliver

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General

Target

2024-04-16_b4bc96aeff48a81d6a5c9558fdd537e7_ryuk_sliver
Size

3.2MB
MD5

b4bc96aeff48a81d6a5c9558fdd537e7
SHA1

bc16a85782edaee7901a33198b3383b122cc00d7
SHA256

f1a4575ce880334d641ccd578fb6acc7f0c4d18d579de89b0b8627d026823e3d
SHA512

b97703a598ec5eaaa11fffe694cf54331fdcddc35344b2f1b9e88b5e86693164dea7c8d0d6979060064cedb43b3bc7225a385c8f3daf8d0a177484eac94e106e
SSDEEP

49152:o0yAXvucS6SnbZVlxyZH0XAaCx5OX9ZO/xtEfOfzMFvfDTtKjkVE+ubDw8litYOu:7vg6ClrBCjec+OfAK7DuYOQL

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-16_b4bc96aeff48a81d6a5c9558fdd537e7_ryuk_sliver

Files

2024-04-16_b4bc96aeff48a81d6a5c9558fdd537e7_ryuk_sliver
.exe windows:6 windows x64 arch:x64

de9d50d41586565d7f7d04f9c85905a2

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

PDB Paths

C:\MeshAgent\MeshAgent\Release\MeshService64.pdb

Imports

dbghelp

MiniDumpWriteDump
SymFromAddr
StackWalk64
SymInitialize
SymFunctionTableAccess64
SymGetLineFromAddr64
SymGetModuleBase64

iphlpapi

GetAdaptersAddresses
SendARP
ConvertLengthToIpv4Mask
GetAdaptersInfo

ws2_32

ntohl
WSAGetLastError
ioctlsocket
recv
gethostname
htonl
htons
ntohs
WSASetLastError
send
getsockname
WSASocketW
listen
closesocket
bind
accept
__WSAFDIsSet
setsockopt
socket
sendto
getsockopt
recvfrom
connect
shutdown
WSAIoctl
GetAddrInfoW
WSAResetEvent
WSAEventSelect
WSAStartup
WSACreateEvent
WSACloseEvent
select
WSACleanup
FreeAddrInfoW

crypt32

CertEnumCertificatesInStore
CertDeleteCertificateFromStore
CryptAcquireCertificatePrivateKey
CertAddEncodedCertificateToStore
CryptMsgClose
CryptMsgUpdate
CryptExportPublicKeyInfo
CertCreateSelfSignCertificate
CertFreeCertificateContext
CryptMsgOpenToEncode
CertAddCertificateContextToStore
PFXExportCertStore
CryptSignAndEncodeCertificate
CertCloseStore
CertStrToNameA
CryptMsgGetParam
CryptEncodeObject
CertSetCertificateContextProperty
CertFindCertificateInStore
CryptMsgCalculateEncodedLength
CertOpenStore
CertStrToNameW
CertDuplicateCertificateContext
CertGetCertificateContextProperty

gdiplus

GdipGetImageEncoders
GdipCloneImage
GdiplusStartup
GdipAlloc
GdipDisposeImage
GdipFree
GdipGetImageEncodersSize
GdipSaveImageToStream
GdiplusShutdown
GdipLoadImageFromStream

ncrypt

NCryptCreatePersistedKey
NCryptFreeObject
NCryptFinalizeKey
BCryptOpenAlgorithmProvider
NCryptOpenStorageProvider
BCryptGenRandom
NCryptSetProperty
BCryptCloseAlgorithmProvider

kernel32

InitializeSListHead
GetStartupInfoW
RtlUnwindEx
GetFullPathNameW
GetStdHandle
WriteFile
LoadLibraryExA
GetModuleFileNameW
GetSystemPowerStatus
OpenProcess
MultiByteToWideChar
Sleep
GetLastError
CloseHandle
GetCurrentDirectoryW
SetCurrentDirectoryW
GetProcAddress
SetEnvironmentVariableA
CreateProcessW
FreeLibrary
WideCharToMultiByte
WaitForSingleObject
GetCurrentThreadId
GetModuleHandleA
CreateThread
QueueUserAPC
OpenThread
ReadFile
LoadLibraryA
SleepEx
SetSystemPowerState
GetCurrentProcess
SetThreadExecutionState
HeapFree
HeapAlloc
GetProcessHeap
SystemTimeToFileTime
GetSystemTime
FileTimeToSystemTime
QueryPerformanceFrequency
QueryPerformanceCounter
ReleaseSemaphore
CreateSemaphoreA
CancelIo
FindFirstFileW
FindNextFileW
RemoveDirectoryW
GetFinalPathNameByHandleW
GetDriveTypeA
SetFilePointer
FindFirstVolumeA
FindClose
CreateFileW
GetVolumePathNamesForVolumeNameA
GetFileAttributesExW
ReadDirectoryChangesW
FindNextVolumeA
FindVolumeClose
GetDiskFreeSpaceExA
CreateEventA
GetModuleHandleExA
WaitForMultipleObjectsEx
CreateNamedPipeA
DisconnectNamedPipe
CreateFileA
CancelIoEx
LocalFree
ConnectNamedPipe
SetConsoleOutputCP
IsDebuggerPresent
TerminateProcess
GetTempPathW
CancelSynchronousIo
SetEvent
WaitForSingleObjectEx
ResetEvent
GetThreadId
GetCurrentProcessId
IsProcessorFeaturePresent
FreeEnvironmentStringsA
CopyFileW
RtlCaptureContext
SuspendThread
ResumeThread
DuplicateHandle
GetTickCount64
GetCurrentThread
GetOverlappedResult
GetThreadContext
WTSGetActiveConsoleSessionId
GetExitCodeProcess
SetEndOfFile
DeleteFileW
SetFilePointerEx
SetConsoleCtrlHandler
FreeConsole
LoadLibraryExW
SetLastError
GetFileType
GetModuleHandleW
SwitchToFiber
DeleteFiber
CreateFiber
GetSystemTimeAsFileTime
EncodePointer
ConvertThreadToFiber
GetEnvironmentVariableW
GetConsoleMode
ReadConsoleA
ReadConsoleW
SetConsoleMode
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
ExitProcess
GetModuleHandleExW
CreateDirectoryW
GetConsoleCP
MoveFileExW
SetEnvironmentVariableW
GetTimeZoneInformation
SetStdHandle
GetDriveTypeW
PeekNamedPipe
GetCommandLineA
GetCommandLineW
GetACP
GetDateFormatW
GetTimeFormatW
CompareStringW
LCMapStringW
GetStringTypeW
HeapReAlloc
FlushFileBuffers
WriteConsoleW
GetCPInfo
FindFirstFileExW
SetUnhandledExceptionFilter
RtlLookupFunctionEntry
RtlVirtualUnwind
GetEnvironmentStrings
UnhandledExceptionFilter
IsValidCodePage
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
RaiseException
HeapSize
RtlPcToFileHeader
SystemTimeToTzSpecificLocalTime
ConvertFiberToThread

user32

EndDialog
SetWindowTextW
GetWindowPlacement
ShowWindow
SetWindowPlacement
SetWindowTextA
GetDlgItem
DialogBoxParamW
EnableWindow
MessageBeep
ExitWindowsEx
GetUserObjectInformationA
EnumDisplayMonitors
GetSystemMetrics
SetThreadDesktop
GetThreadDesktop
CloseDesktop
BlockInput
GetMonitorInfoA
OpenInputDesktop
GetKeyState
GetMessageA
GetMessageExtraInfo
SendMessageW
LoadCursorA
DestroyWindow
GetDC
PostMessageA
GetIconInfo
CallNextHookEx
GetCursorInfo
SetWindowsHookExA
MapVirtualKeyA
GetForegroundWindow
UnhookWindowsHookEx
DefWindowProcA
CreateWindowExA
TranslateMessage
UnregisterClassA
DrawIconEx
SetWinEventHook
RegisterClassExA
UnhookWinEvent
SetForegroundWindow
ReleaseDC
SendInput
SetProcessDPIAware
GetWindowRect
GetProcessWindowStation
GetUserObjectInformationW
MessageBoxW
DispatchMessageA

gdi32

GetStockObject
SetTextColor
SetBkMode
CreateSolidBrush
BitBlt
StretchBlt
DeleteDC
CreateCompatibleDC
SetStretchBltMode
CreateCompatibleBitmap
GetObjectA
DeleteObject
GetDIBits
SelectObject

advapi32

QueryServiceStatus
RegisterEventSourceW
DeregisterEventSource
CryptEnumProvidersW
CryptSignHashW
CryptDestroyHash
CryptCreateHash
CryptDecrypt
CryptExportKey
CryptGetUserKey
CryptGetProvParam
CryptSetHashParam
CryptAcquireContextW
RegDeleteValueA
RegCreateKeyW
RegOpenKeyExA
RegSetValueExA
RegQueryValueExA
RegDeleteKeyA
RegCloseKey
OpenProcessToken
InitiateSystemShutdownA
LookupPrivilegeValueA
AdjustTokenPrivileges
CryptReleaseContext
RegSetValueExW
CryptDestroyKey
InitializeSecurityDescriptor
SetEntriesInAclA
SetSecurityDescriptorDacl
DuplicateTokenEx
CreateProcessAsUserW
SetTokenInformation
OpenServiceA
CheckTokenMembership
FreeSid
RegisterServiceCtrlHandlerExA
OpenSCManagerA
SetServiceStatus
AllocateAndInitializeSid
CloseServiceHandle
StartServiceCtrlDispatcherA
ReportEventW

shell32

ShellExecuteExW

ole32

CoUninitialize
CoInitializeEx
CoCreateInstance
CreateStreamOnHGlobal

oleaut32

SysFreeString
SysStringLen
SysAllocString

Sections

.text
Size: 2.0MB - Virtual size: 2.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 902KB - Virtual size: 902KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 34KB - Virtual size: 194KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 101KB - Virtual size: 100KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 196B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 136KB - Virtual size: 135KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 19KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

de9d50d41586565d7f7d04f9c85905a2

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

dbghelp

iphlpapi

ws2_32

crypt32

gdiplus

ncrypt

kernel32

user32

gdi32

advapi32

shell32

ole32

oleaut32

Sections

.text Size: 2.0MB - Virtual size: 2.0MB

.rdata Size: 902KB - Virtual size: 902KB

.data Size: 34KB - Virtual size: 194KB

.pdata Size: 101KB - Virtual size: 100KB

.gfids Size: 512B - Virtual size: 196B

.rsrc Size: 136KB - Virtual size: 135KB

.reloc Size: 19KB - Virtual size: 18KB

.text
Size: 2.0MB - Virtual size: 2.0MB

.rdata
Size: 902KB - Virtual size: 902KB

.data
Size: 34KB - Virtual size: 194KB

.pdata
Size: 101KB - Virtual size: 100KB

.gfids
Size: 512B - Virtual size: 196B

.rsrc
Size: 136KB - Virtual size: 135KB

.reloc
Size: 19KB - Virtual size: 18KB