2024-04-20_bd456222e668b63f3b2b7fafd4e72ffc_ryuk

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General

Target

2024-04-20_bd456222e668b63f3b2b7fafd4e72ffc_ryuk
Size

5.0MB
MD5

bd456222e668b63f3b2b7fafd4e72ffc
SHA1

efe26a0a5279a7b8e001373c1131fef660275765
SHA256

01cce7e232580fafe20547407e11bff70b3f10431dbc9cc85ffde161a1702015
SHA512

fba71f771d495339483f07d2ee55d6052a8a692d19d495330a5a55073ae0dbed9aa4ef4035e72dbf1d99a386d38c6f415aad6cc3e5c99be5d3215300b1f3b357
SSDEEP

49152:KxL6MGxsnwDyLJykmCY4gblvxgWIadxcZVwgjVoD5OEw+5OtY3kcH0uVAyiE8hD8:HFFBvxu0OW3kRuqyil8cR

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-20_bd456222e668b63f3b2b7fafd4e72ffc_ryuk

Files

2024-04-20_bd456222e668b63f3b2b7fafd4e72ffc_ryuk
.exe windows:5 windows x64 arch:x64

6ade4f66fe14e045fe00deac29ac11dd

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

updater_test.exe.pdb

Imports

advapi32

AddAce
AllocateAndInitializeSid
BuildExplicitAccessWithNameW
BuildSecurityDescriptorW
BuildTrusteeWithSidW
ChangeServiceConfigW
CheckTokenMembership
CloseServiceHandle
ConvertSidToStringSidW
ConvertStringSecurityDescriptorToSecurityDescriptorW
ConvertStringSidToSidW
CopySid
CreateProcessAsUserW
CreateServiceW
DeleteService
EqualSid
EventRegister
EventSetInformation
EventUnregister
EventWrite
FreeSid
GetAce
GetAclInformation
GetLengthSid
GetNamedSecurityInfoW
GetSecurityDescriptorControl
GetSecurityDescriptorDacl
GetSecurityDescriptorGroup
GetSecurityDescriptorLength
GetSecurityDescriptorOwner
GetSecurityDescriptorSacl
GetSecurityInfo
GetSidIdentifierAuthority
GetSidLengthRequired
GetSidSubAuthority
GetSidSubAuthorityCount
GetTokenInformation
GetTraceEnableFlags
GetTraceEnableLevel
GetTraceLoggerHandle
ImpersonateNamedPipeClient
InitializeAcl
InitializeSecurityDescriptor
InitializeSid
IsValidAcl
IsValidSecurityDescriptor
IsValidSid
LookupAccountSidW
MakeAbsoluteSD
MakeSelfRelativeSD
OpenProcessToken
OpenSCManagerW
OpenServiceW
OpenThreadToken
QueryServiceConfigW
RegCloseKey
RegCreateKeyExW
RegDeleteKeyExW
RegDeleteValueW
RegEnumKeyExW
RegEnumValueW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExA
RegQueryValueExW
RegSetValueExW
RegisterServiceCtrlHandlerW
RegisterTraceGuidsW
RevertToSelf
SetEntriesInAclW
SetNamedSecurityInfoW
SetSecurityDescriptorDacl
SetSecurityDescriptorGroup
SetSecurityDescriptorOwner
SetSecurityInfo
SetServiceStatus
StartServiceCtrlDispatcherW
TraceEvent
UnregisterTraceGuids

dbghelp

SymCleanup
SymFromAddr
SymGetLineFromAddr64
SymGetSearchPathW
SymInitialize
SymSetOptions
SymSetSearchPathW

gdi32

BitBlt
CombineRgn
CreateCompatibleBitmap
CreateCompatibleDC
CreateFontIndirectW
CreateRectRgn
CreateRectRgnIndirect
CreateSolidBrush
DPtoLP
DeleteDC
DeleteObject
ExtTextOutW
FillRgn
GetDeviceCaps
GetObjectW
GetRegionData
GetStockObject
GetTextMetricsW
OffsetRgn
SelectObject
SetBkColor
SetTextColor
SetViewportOrgEx

msimg32

GradientFill

oleaut32

LoadRegTypeLi
LoadTypeLi
OleCreateFontIndirect
OleLoadPicturePath
SafeArrayAccessData
SafeArrayCreateVector
SafeArrayDestroy
SafeArrayGetDim
SafeArrayGetLBound
SafeArrayGetUBound
SafeArrayGetVartype
SafeArrayUnaccessData
SysAllocString
SysAllocStringByteLen
SysAllocStringLen
SysFreeString
SysStringLen
SystemTimeToVariantTime
VariantClear
VariantInit

shell32

CommandLineToArgvW
ord680
SHGetFolderPathW
SHGetKnownFolderPath
ShellExecuteExW

user32

AllowSetForegroundWindow
BeginPaint
CallWindowProcW
CharNextW
CharUpperW
ClientToScreen
CopyImage
CopyRect
CreateAcceleratorTableW
CreateDialogIndirectParamW
CreateWindowExW
DefWindowProcW
DestroyAcceleratorTable
DestroyIcon
DestroyWindow
DispatchMessageW
EnableMenuItem
EnableWindow
EndDialog
EndPaint
EnumChildWindows
FillRect
FrameRect
GetActiveWindow
GetClassInfoExW
GetClassNameW
GetClientRect
GetCursorPos
GetDC
GetDesktopWindow
GetDlgItem
GetFocus
GetMenuState
GetMessageW
GetMonitorInfoW
GetParent
GetQueueStatus
GetSysColor
GetSysColorBrush
GetSystemMenu
GetSystemMetrics
GetTopWindow
GetWindow
GetWindowLongPtrW
GetWindowLongW
GetWindowRect
GetWindowTextLengthW
GetWindowTextW
InflateRect
InvalidateRect
InvalidateRgn
IsChild
IsDialogMessageW
IsMenu
IsRectEmpty
IsWindow
IsWindowVisible
KillTimer
LoadCursorW
LoadImageW
LockSetForegroundWindow
MapDialogRect
MapWindowPoints
MonitorFromWindow
MoveWindow
MsgWaitForMultipleObjectsEx
OffsetRect
PeekMessageW
PostMessageW
PostQuitMessage
PostThreadMessageW
RedrawWindow
RegisterClassExW
RegisterClassW
RegisterWindowMessageW
ReleaseCapture
ReleaseDC
RemoveMenu
ScreenToClient
SendDlgItemMessageW
SendMessageW
SetActiveWindow
SetCapture
SetDlgItemTextW
SetFocus
SetForegroundWindow
SetLayeredWindowAttributes
SetTimer
SetWindowContextHelpId
SetWindowLongPtrW
SetWindowLongW
SetWindowPos
SetWindowTextW
ShowWindow
SystemParametersInfoW
TranslateMessage
UnregisterClassW
UpdateWindow

winmm

timeBeginPeriod
timeEndPeriod
timeGetTime

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AddVectoredExceptionHandler
AssignProcessToJobObject
CloseHandle
CompareStringW
ConnectNamedPipe
CopyFileW
CreateDirectoryW
CreateEventW
CreateFileA
CreateFileMappingW
CreateFileW
CreateIoCompletionPort
CreateMutexW
CreateNamedPipeW
CreatePipe
CreateProcessW
CreateSemaphoreW
CreateThread
CreateToolhelp32Snapshot
DecodePointer
DeleteCriticalSection
DeleteFileW
DeleteProcThreadAttributeList
DisconnectNamedPipe
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FileTimeToLocalFileTime
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindNextFileW
FindResourceExW
FindResourceW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FlushInstructionCache
FlushViewOfFile
FormatMessageA
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesExW
GetFileAttributesW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFileSizeEx
GetFileTime
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLogicalProcessorInformation
GetLogicalProcessorInformationEx
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProcessId
GetProcessMitigationPolicy
GetProcessTimes
GetProductInfo
GetQueuedCompletionStatus
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDefaultLCID
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadContext
GetThreadId
GetThreadLocale
GetThreadPreferredUILanguages
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetUserPreferredUILanguages
GetVersionExW
GetWindowsDirectoryW
GlobalAlloc
GlobalFree
GlobalHandle
GlobalLock
GlobalMemoryStatusEx
GlobalUnlock
HeapAlloc
HeapDestroy
HeapFree
HeapReAlloc
HeapSetInformation
HeapSize
InitOnceExecuteOnce
InitializeConditionVariable
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeProcThreadAttributeList
InitializeSListHead
InitializeSRWLock
InterlockedPopEntrySList
InterlockedPushEntrySList
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
K32EnumProcessModules
K32GetModuleFileNameExA
K32GetModuleInformation
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LoadResource
LocalAlloc
LocalFree
LockFileEx
LockResource
MapViewOfFile
MoveFileExW
MoveFileW
MulDiv
MultiByteToWideChar
OpenProcess
OutputDebugStringA
OutputDebugStringW
PeekNamedPipe
PostQueuedCompletionStatus
Process32FirstW
Process32NextW
QueryFullProcessImageNameW
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReadProcessMemory
RegisterWaitForSingleObject
ReleaseMutex
ReleaseSRWLockExclusive
ReleaseSRWLockShared
ReleaseSemaphore
RemoveDirectoryW
ReplaceFileW
ResetEvent
ResumeThread
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetCurrentDirectoryW
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFileInformationByHandle
SetFilePointer
SetFilePointerEx
SetFileTime
SetHandleInformation
SetLastError
SetNamedPipeHandleState
SetProcessShutdownParameters
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
SizeofResource
Sleep
SleepConditionVariableSRW
SleepEx
SuspendThread
SystemTimeToFileTime
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TransactNamedPipe
TryAcquireSRWLockExclusive
TzSpecificLocalTimeToSystemTime
UnhandledExceptionFilter
UnlockFileEx
UnmapViewOfFile
UnregisterWaitEx
UpdateProcThreadAttribute
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
VirtualQueryEx
WaitForSingleObject
WaitForSingleObjectEx
WaitNamedPipeW
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
Wow64GetThreadContext
WriteConsoleW
WriteFile
lstrcmpW
lstrlenA

ole32

CLSIDFromProgID
CLSIDFromString
CoAddRefServerProcess
CoCreateGuid
CoCreateInstance
CoGetClassObject
CoImpersonateClient
CoInitializeEx
CoInitializeSecurity
CoRegisterClassObject
CoRegisterInitializeSpy
CoReleaseServerProcess
CoResumeClassObjects
CoRevertToSelf
CoRevokeClassObject
CoRevokeInitializeSpy
CoSetProxyBlanket
CoTaskMemAlloc
CoTaskMemFree
CoUninitialize
CreateStreamOnHGlobal
IIDFromString
OleInitialize
OleLockRunning
OleUninitialize
StringFromGUID2

secur32

GetUserNameExW

userenv

CreateEnvironmentBlock
DestroyEnvironmentBlock
EnterCriticalPolicySection
LeaveCriticalPolicySection
UnloadUserProfile

comctl32

InitCommonControlsEx
_TrackMouseEvent

winhttp

WinHttpAddRequestHeaders
WinHttpCloseHandle
WinHttpConnect
WinHttpCrackUrl
WinHttpGetProxyForUrl
WinHttpOpen
WinHttpOpenRequest
WinHttpQueryHeaders
WinHttpReadData
WinHttpReceiveResponse
WinHttpSendRequest
WinHttpSetOption
WinHttpSetStatusCallback
WinHttpSetTimeouts
WinHttpWriteData

uxtheme

SetWindowTheme

shlwapi

ord437
PathMatchSpecW

ntdll

NtDeleteKey

version

GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW

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

RoInitialize
RoUninitialize

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 3.7MB - Virtual size: 3.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 772KB - Virtual size: 771KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 76KB - Virtual size: 139KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 147KB - Virtual size: 147KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 48B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 156B

.tls
Size: 1024B - Virtual size: 561B

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

LZMADEC
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

malloc_h
Size: 512B - Virtual size: 304B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 216KB - Virtual size: 215KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 20KB - Virtual size: 20KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

6ade4f66fe14e045fe00deac29ac11dd

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

dbghelp

gdi32

msimg32

oleaut32

shell32

user32

winmm

kernel32

ole32

secur32

userenv

comctl32

winhttp

uxtheme

shlwapi

ntdll

version

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

Exports

Exports

Sections

.text Size: 3.7MB - Virtual size: 3.7MB

.rdata Size: 772KB - Virtual size: 771KB

.data Size: 76KB - Virtual size: 139KB

.pdata Size: 147KB - Virtual size: 147KB

.00cfg Size: 512B - Virtual size: 48B

.gxfg Size: 12KB - Virtual size: 12KB

.retplne Size: 512B - Virtual size: 156B

.tls Size: 1024B - Virtual size: 561B

CPADinfo Size: 512B - Virtual size: 56B

LZMADEC Size: 4KB - Virtual size: 4KB

_RDATA Size: 512B - Virtual size: 348B

malloc_h Size: 512B - Virtual size: 304B

.rsrc Size: 216KB - Virtual size: 215KB

.reloc Size: 20KB - Virtual size: 20KB

.text
Size: 3.7MB - Virtual size: 3.7MB

.rdata
Size: 772KB - Virtual size: 771KB

.data
Size: 76KB - Virtual size: 139KB

.pdata
Size: 147KB - Virtual size: 147KB

.00cfg
Size: 512B - Virtual size: 48B

.gxfg
Size: 12KB - Virtual size: 12KB

.retplne
Size: 512B - Virtual size: 156B

.tls
Size: 1024B - Virtual size: 561B

CPADinfo
Size: 512B - Virtual size: 56B

LZMADEC
Size: 4KB - Virtual size: 4KB

_RDATA
Size: 512B - Virtual size: 348B

malloc_h
Size: 512B - Virtual size: 304B

.rsrc
Size: 216KB - Virtual size: 215KB

.reloc
Size: 20KB - Virtual size: 20KB