2024-04-19_cfaa90775aba595a9e1d3e9165e704a4_ryuk

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General

Target

2024-04-19_cfaa90775aba595a9e1d3e9165e704a4_ryuk
Size

1.6MB
MD5

cfaa90775aba595a9e1d3e9165e704a4
SHA1

dddde4fd5779da6b405d0758088fc397ac52f335
SHA256

59e075a67acfc4c1e010c863b2b9ddc7e335fefde12c0ac7750fda6ff0580f40
SHA512

bd32c56196a687f15823cdfe55965895f48a6cb1233afa210f30911905d31c8dd83ae5b0742eba6821a9e5b794e9c4c31e35f66a1bd57260199a272f8c6a0502
SSDEEP

24576:jYR67Y2cb+cREGqtL+SgvqFE1d3ddJW3CAqPSbwL:s8LcnR/q0re0d37JWyAqAu

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-19_cfaa90775aba595a9e1d3e9165e704a4_ryuk

Files

2024-04-19_cfaa90775aba595a9e1d3e9165e704a4_ryuk
.exe windows:5 windows x64 arch:x64

6a8bffcb635443fadba2b7b98db52eda

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

PDB Paths

elevation_service.exe.pdb

Imports

advapi32

AddAce
CopySid
GetAclInformation
GetLengthSid
GetSecurityDescriptorControl
GetSecurityDescriptorDacl
GetSecurityDescriptorGroup
GetSecurityDescriptorOwner
GetSecurityDescriptorSacl
GetSidLengthRequired
GetSidSubAuthority
InitializeAcl
InitializeSecurityDescriptor
InitializeSid
IsValidSid
MakeAbsoluteSD
RegisterServiceCtrlHandlerW
SetSecurityDescriptorDacl
SetSecurityDescriptorGroup
SetSecurityDescriptorOwner
SetServiceStatus
StartServiceCtrlDispatcherW

kernel32

AcquireSRWLockExclusive
CloseHandle
CreateEventW
CreateFileW
DecodePointer
DeleteCriticalSection
DeleteFileW
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleCP
GetConsoleMode
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetEnvironmentVariableW
GetFileType
GetLastError
GetLocalTime
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemInfo
GetSystemTimeAsFileTime
GetTickCount
GetUserDefaultLCID
HeapAlloc
HeapCreate
HeapDestroy
HeapFree
HeapReAlloc
HeapSetInformation
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LocalFree
MultiByteToWideChar
OutputDebugStringA
OutputDebugStringW
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SwitchToThread
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WideCharToMultiByte
WriteConsoleW
WriteFile

ole32

CoAddRefServerProcess
CoInitializeEx
CoInitializeSecurity
CoRegisterClassObject
CoReleaseServerProcess
CoResumeClassObjects
CoRevokeClassObject
CoUninitialize

shell32

CommandLineToArgvW

winmm

timeGetTime

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 299KB - Virtual size: 299KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 99KB - Virtual size: 99KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 19KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 14KB - Virtual size: 13KB

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

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

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

6a8bffcb635443fadba2b7b98db52eda

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

kernel32

ole32

shell32

winmm

Exports

Exports

Sections

.text Size: 299KB - Virtual size: 299KB

.rdata Size: 99KB - Virtual size: 99KB

.data Size: 4KB - Virtual size: 19KB

.pdata Size: 14KB - Virtual size: 13KB

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

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

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

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

.text
Size: 299KB - Virtual size: 299KB

.rdata
Size: 99KB - Virtual size: 99KB

.data
Size: 4KB - Virtual size: 19KB

.pdata
Size: 14KB - Virtual size: 13KB

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

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

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

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