2024-04-15_55503f3f3b1893b71321a0116a856382_ryuk

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General

Target

2024-04-15_55503f3f3b1893b71321a0116a856382_ryuk
Size

1.6MB
MD5

55503f3f3b1893b71321a0116a856382
SHA1

c6d9eaec3cd714d6889194beedc961dcd511fedd
SHA256

a1ab3c614c2af7b4fff2007fe7cdbef0128d08bd73813d7b96c3d2f997adc615
SHA512

1e9e9c69440ea55dc8a3e513a26cc602270bf5e9ff7a496bb4424b65674d77b55d75616359af33acbbc9d6aa22caabe8719372040a1b1090626b0107c7558e1c
SSDEEP

24576:Zq5BCT8NHToHQ6l0GZ/TwSfVcYG3K/cJHlnFR+IGNe8j3Iz:wBG8NHTR6LZLNiXicJFFRGNzj3

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-15_55503f3f3b1893b71321a0116a856382_ryuk

Files

2024-04-15_55503f3f3b1893b71321a0116a856382_ryuk
.exe windows:6 windows x64 arch:x64

dad61c1cb55a6bdbe8bfac2ce24939d3

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

SetFileAttributesW
CreateProcessW
GetSystemDirectoryW
OpenEventW
WaitForMultipleObjects
IsDebuggerPresent
OutputDebugStringW
CreateFileW
WriteConsoleW
ReadConsoleW
SetStdHandle
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineA
GetOEMCP
CreateDirectoryW
MultiByteToWideChar
WTSGetActiveConsoleSessionId
GetSystemPowerStatus
lstrcmpiW
FindResourceW
SizeofResource
LoadResource
LoadLibraryExW
GetProcAddress
GetModuleHandleW
GetModuleFileNameW
FreeLibrary
GetTickCount
GetCurrentThreadId
GetCurrentThread
CreateThread
GetCurrentProcess
Sleep
CreateEventW
WaitForSingleObject
SetEvent
DeleteCriticalSection
InitializeCriticalSectionEx
LeaveCriticalSection
EnterCriticalSection
GetProcessHeap
HeapSize
HeapFree
HeapReAlloc
HeapAlloc
RaiseException
CloseHandle
DecodePointer
ReadFile
CreateFileA
GetCommandLineW
GlobalFree
GlobalLock
IsValidCodePage
FindNextFileW
SetEndOfFile
FindFirstFileExW
FindClose
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
SetFilePointerEx
GetConsoleMode
GetConsoleCP
FlushFileBuffers
GetFileType
GetACP
GetModuleHandleExW
ExitProcess
WriteFile
GetStdHandle
DeleteFileW
RtlPcToFileHeader
GlobalUnlock
GlobalAlloc
SetLastError
GetLastError
RtlUnwindEx
GetCPInfo
GetLocaleInfoW
LCMapStringW
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSectionAndSpinCount
ResetEvent
WaitForSingleObjectEx
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
InitializeSListHead
GetStartupInfoW
WideCharToMultiByte
GetStringTypeW
EncodePointer

user32

CharNextW
MessageBoxW
LoadStringW
CharUpperW
GetMessageW
PostThreadMessageW
TranslateMessage
DispatchMessageW
RegisterDeviceNotificationW
UnregisterDeviceNotification

advapi32

GetTokenInformation
OpenThreadToken
CopySid
GetLengthSid
SetSecurityDescriptorDacl
StartServiceW
RevertToSelf
ImpersonateLoggedOnUser
DuplicateTokenEx
CreateProcessAsUserW
StartServiceCtrlDispatcherW
SetServiceStatus
RegisterServiceCtrlHandlerExW
QueryServiceStatusEx
OpenServiceW
OpenSCManagerW
DeleteService
CreateServiceW
ControlService
CloseServiceHandle
ChangeServiceConfig2W
ChangeServiceConfigW
RegSetValueExW
RegQueryValueExW
RegQueryInfoKeyW
RegOpenKeyExW
RegEnumKeyExW
RegDeleteValueW
RegDeleteKeyW
RegCreateKeyExW
RegCloseKey
ReportEventW
RegisterEventSourceW
DeregisterEventSource
SetSecurityDescriptorOwner
SetSecurityDescriptorGroup
IsValidSid
InitializeSecurityDescriptor
OpenProcessToken

ole32

CoInitializeEx
CoUninitialize
CoRegisterClassObject
CoResumeClassObjects
CoAddRefServerProcess
CoReleaseServerProcess
CoInitializeSecurity
CoCreateInstance
StringFromGUID2
CoTaskMemAlloc
CoTaskMemRealloc
CoTaskMemFree
PropVariantClear
CoRevokeClassObject

oleaut32

LoadRegTypeLi
SysFreeString
SysStringLen
VarUI4FromStr
LoadTypeLi
RegisterTypeLi
UnRegisterTypeLi
SysAllocStringLen
VarBstrCat
SysAllocString

shlwapi

PathFileExistsW

gdi32

D3DKMTCloseAdapter
D3DKMTEscape
D3DKMTOpenAdapterFromDeviceName

setupapi

SetupDiDestroyDeviceInfoList
SetupDiEnumDeviceInterfaces
SetupDiGetDeviceInterfaceDetailW
SetupDiGetClassDevsW

userenv

DestroyEnvironmentBlock
CreateEnvironmentBlock

wtsapi32

WTSQueryUserToken

Sections

.text
Size: 221KB - Virtual size: 221KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 121KB - Virtual size: 120KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 8KB - Virtual size: 37KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 13KB - Virtual size: 13KB

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

.rsrc
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1.2MB - Virtual size: 1.9MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

dad61c1cb55a6bdbe8bfac2ce24939d3

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

ole32

oleaut32

shlwapi

gdi32

setupapi

userenv

wtsapi32

Sections

.text Size: 221KB - Virtual size: 221KB

.rdata Size: 121KB - Virtual size: 120KB

.data Size: 8KB - Virtual size: 37KB

.pdata Size: 13KB - Virtual size: 13KB

.tls Size: 512B - Virtual size: 9B

.rsrc Size: 8KB - Virtual size: 7KB

.reloc Size: 1.2MB - Virtual size: 1.9MB

.text
Size: 221KB - Virtual size: 221KB

.rdata
Size: 121KB - Virtual size: 120KB

.data
Size: 8KB - Virtual size: 37KB

.pdata
Size: 13KB - Virtual size: 13KB

.tls
Size: 512B - Virtual size: 9B

.rsrc
Size: 8KB - Virtual size: 7KB

.reloc
Size: 1.2MB - Virtual size: 1.9MB