2024-04-19_455f2087414cba27ed438f5ddb913050_ryuk

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General

Target

2024-04-19_455f2087414cba27ed438f5ddb913050_ryuk
Size

1.6MB
MD5

455f2087414cba27ed438f5ddb913050
SHA1

4e6105341b567142bb502293ebefb4d13ea17e82
SHA256

f501d52b098bc75599b7896553a3eb0531be12ef38df3c8b89497de319d6fd10
SHA512

b92a1dfed3071fd190af66f734d1c58e46c76eccca1532e28f92ee0d3753a0c9618d4edfa9ebe4c492847b899f7adb566e18042538ed5e6c73be42bacfd0cb28
SSDEEP

49152:5op2mpNXefjM5Onna/TyqMghkR0HpUUN5I9+n3Y:qJ5OvRepUUN5I9+n3

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-19_455f2087414cba27ed438f5ddb913050_ryuk

Files

2024-04-19_455f2087414cba27ed438f5ddb913050_ryuk
.exe windows:6 windows x64 arch:x64

79e9d4c9fc46b089192f6826bcac59ea

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

C:\dvs\p4\build\sw\rel\gpu_drv\r550\r552_19\drivers\ngx\updater\_out\wddm_amd64_release\nvngx_update.pdb

Imports

kernel32

VerSetConditionMask
GetModuleHandleW
FreeLibrary
VerifyVersionInfoW
LoadLibraryExW
EnterCriticalSection
LeaveCriticalSection
OutputDebugStringW
DeleteCriticalSection
LoadLibraryW
MultiByteToWideChar
WideCharToMultiByte
GetProcAddress
WriteFile
SetFilePointer
CreateFileA
GetSystemDirectoryW
GetFileAttributesW
CreateFileW
GetModuleFileNameW
GetFullPathNameW
SetLastError
WriteConsoleW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetModuleFileNameA
AllocConsole
GetConsoleWindow
GetCurrentProcessId
OutputDebugStringA
WriteConsoleA
GetStdHandle
SetConsoleTitleA
FormatMessageA
MoveFileExW
GetOEMCP
IsValidCodePage
FindNextFileA
FindFirstFileExA
GetProcessHeap
SetEndOfFile
GetFileAttributesExW
LocalFree
DeleteFileW
SetFileAttributesW
LocalAlloc
FindClose
RemoveDirectoryW
FindNextFileW
FindFirstFileW
CloseHandle
SetEvent
GetLastError
Sleep
ReleaseMutex
WaitForSingleObject
CreateMutexA
ReadFile
OpenEventA
GetTimeZoneInformation
SetStdHandle
HeapSize
SetFilePointerEx
FlushFileBuffers
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetTimeFormatW
GetDateFormatW
GetConsoleCP
ReadConsoleW
GetConsoleMode
GetACP
GetCommandLineW
GetCommandLineA
HeapReAlloc
HeapFree
HeapAlloc
ExitThread
GetCurrentDirectoryW
SetEnvironmentVariableA
FileTimeToSystemTime
SystemTimeToTzSpecificLocalTime
PeekNamedPipe
GetFileType
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
FormatMessageW
QueryPerformanceCounter
GetTickCount
InitializeCriticalSectionEx
QueryPerformanceFrequency
GetSystemDirectoryA
GetModuleHandleA
LoadLibraryA
MoveFileExA
WaitForSingleObjectEx
GetEnvironmentVariableA
SleepEx
GetFileSizeEx
TryEnterCriticalSection
GetCurrentThreadId
EncodePointer
DecodePointer
GetCPInfo
InitializeCriticalSectionAndSpinCount
CreateEventW
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
CompareStringW
LCMapStringW
GetLocaleInfoW
GetStringTypeW
ResetEvent
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
InitializeSListHead
SignalObjectAndWait
SwitchToThread
CreateThread
SetThreadPriority
GetThreadPriority
GetLogicalProcessorInformation
CreateTimerQueueTimer
ChangeTimerQueueTimer
DeleteTimerQueueTimer
GetNumaHighestNodeNumber
GetProcessAffinityMask
SetThreadAffinityMask
RegisterWaitForSingleObject
UnregisterWait
GetCurrentThread
GetThreadTimes
FreeLibraryAndExitThread
GetVersionExW
VirtualAlloc
VirtualFree
VirtualProtect
DuplicateHandle
ReleaseSemaphore
InterlockedPopEntrySList
InterlockedPushEntrySList
InterlockedFlushSList
QueryDepthSList
UnregisterWaitEx
CreateTimerQueue
RtlPcToFileHeader
RaiseException
RtlUnwindEx
ExitProcess
GetModuleHandleExW
CreateDirectoryW
GetDriveTypeW
GetFileInformationByHandle

shlwapi

PathFileExistsW

user32

GetWindowThreadProcessId

advapi32

CryptHashData
CryptCreateHash
CryptGetHashParam
CryptReleaseContext
CryptAcquireContextA
RegQueryValueExW
RegOpenKeyExW
InitializeSecurityDescriptor
ConvertStringSidToSidW
GetNamedSecurityInfoW
SetNamedSecurityInfoW
RegCloseKey
SetEntriesInAclA
SetSecurityDescriptorDacl
CryptDestroyHash

shell32

SHGetKnownFolderPath
SHCreateDirectoryExW

ole32

CoTaskMemFree

bcrypt

BCryptGenRandom

normaliz

IdnToAscii

crypt32

CertOpenStore
CertCloseStore
CertEnumCertificatesInStore
CertFindCertificateInStore
CertFreeCertificateContext
CryptStringToBinaryA
PFXImportCertStore
CryptDecodeObjectEx
CertAddCertificateContextToStore
CertFindExtension
CertGetNameStringA
CryptQueryObject
CertCreateCertificateChainEngine
CertFreeCertificateChainEngine
CertGetCertificateChain
CertFreeCertificateChain

ws2_32

htons
WSAIoctl
setsockopt
WSACleanup
WSAStartup
WSASetLastError
ntohs
WSAGetLastError
htonl
socket
bind
WSAEventSelect
WSAEnumNetworkEvents
WSACreateEvent
WSACloseEvent
send
getsockopt
listen
recv
__WSAFDIsSet
select
WSAWaitForMultipleEvents
accept
getaddrinfo
freeaddrinfo
getpeername
connect
WSAResetEvent
getsockname
ioctlsocket
closesocket

Sections

.text
Size: 780KB - Virtual size: 780KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 253KB - Virtual size: 252KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 12KB - Virtual size: 102KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 39KB - Virtual size: 39KB

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: 1024B - Virtual size: 888B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 572KB - Virtual size: 576KB

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

79e9d4c9fc46b089192f6826bcac59ea

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

shlwapi

user32

advapi32

shell32

ole32

bcrypt

normaliz

crypt32

ws2_32

Sections

.text Size: 780KB - Virtual size: 780KB

.rdata Size: 253KB - Virtual size: 252KB

.data Size: 12KB - Virtual size: 102KB

.pdata Size: 39KB - Virtual size: 39KB

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

.rsrc Size: 1024B - Virtual size: 888B

.reloc Size: 572KB - Virtual size: 576KB

.text
Size: 780KB - Virtual size: 780KB

.rdata
Size: 253KB - Virtual size: 252KB

.data
Size: 12KB - Virtual size: 102KB

.pdata
Size: 39KB - Virtual size: 39KB

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

.rsrc
Size: 1024B - Virtual size: 888B

.reloc
Size: 572KB - Virtual size: 576KB