2024-02-04_9786ac9dbf7b7c966de53c3e3edb9b35_ryuk

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General

Target

2024-02-04_9786ac9dbf7b7c966de53c3e3edb9b35_ryuk
Size

5.0MB
MD5

9786ac9dbf7b7c966de53c3e3edb9b35
SHA1

a81176fc8d887db4129b9b9c5357295034dde3cc
SHA256

dcb1b1b9946bfb288ebf48a55277028e9a7ba976372a632a849adbd1d37635ea
SHA512

9b09efeea271c143155695dfa0584351cf5681a6a90b606c875698625a8b71ba6a1c23e12646b05676ab88102b2c8e1dfcaed9023e080bd7277cb39bf87f4702
SSDEEP

49152:4ysxHMW6nW3mumWlUnJlT83+vDWSz3EEJMShUNtMUrbBunts8JckcDrdypBvFS/3:UmnzvKhEGSCNtMUrbByP2PFkIofY

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-02-04_9786ac9dbf7b7c966de53c3e3edb9b35_ryuk

Files

2024-02-04_9786ac9dbf7b7c966de53c3e3edb9b35_ryuk
.exe windows:5 windows x64 arch:x64

7730b48e1650ac28d876f26706080a13

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:\b\c\b\win_archive\src\out\Release\nacl_win64\nacl64.exe.pdb

Imports

advapi32

OpenProcessToken
GetTokenInformation
ConvertStringSecurityDescriptorToSecurityDescriptorW
CreateProcessAsUserW
SystemFunction036
InitializeAcl
InitializeSecurityDescriptor
SetSecurityDescriptorDacl
RegCloseKey
RegCreateKeyExW
RegOpenKeyExW
GetAce
GetKernelObjectSecurity
GetLengthSid
GetSecurityDescriptorSacl
SetKernelObjectSecurity
SetTokenInformation
SetSecurityInfo
ConvertStringSidToSidW
RevertToSelf
RegDisablePredefinedCache
CopySid
CreateWellKnownSid
CreateRestrictedToken
DuplicateToken
DuplicateTokenEx
EqualSid
LookupPrivilegeValueW
SetThreadToken
ConvertSidToStringSidW
SetEntriesInAclW
GetSecurityInfo

dbghelp

SymGetSearchPathW
SymInitialize
SymGetLineFromAddr64
SymSetOptions
SymFromAddr
SymSetSearchPathW

gdi32

GetOutlineTextMetricsW
GdiFlush
GetTextFaceW
ExtTextOutW
CreateDIBSection
SetWorldTransform
GetTextMetricsW
SetTextAlign
SetTextColor
SetGraphicsMode
CreateCompatibleDC
CreateFontIndirectW
DeleteDC
DeleteObject
EnumFontFamiliesExW
GetCharABCWidthsW
GetFontData
GetGlyphOutlineW
GetFontUnicodeRanges
GetGlyphIndicesW
GetTextExtentPointI
AddFontMemResourceEx
RemoveFontMemResourceEx
SelectObject
SetBkMode

kernel32

GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetCommandLineA
TransactNamedPipe
DuplicateHandle
GetCurrentProcess
GetStdHandle
GetLongPathNameW
CloseHandle
GetLastError
SetLastError
ResumeThread
IsProcessInJob
QueryInformationJobObject
GetModuleFileNameW
GetModuleHandleW
GetModuleHandleExW
HeapAlloc
HeapReAlloc
HeapFree
HeapSize
DebugActiveProcess
GetCurrentProcessId
GetCurrentThreadId
CreateFileW
CreateNamedPipeW
WaitNamedPipeW
LocalFree
ConnectNamedPipe
ExitProcess
GetModuleHandleA
FormatMessageW
VirtualFree
UnmapViewOfFile
GetSystemInfo
VirtualAlloc
VirtualProtect
CreateEventW
ContinueDebugEvent
WaitForDebugEvent
SetEvent
TerminateProcess
SuspendThread
GetThreadContext
SetThreadContext
VirtualQueryEx
ReadProcessMemory
WriteProcessMemory
ReadFile
WriteFile
SetHandleInformation
OpenProcess
GetCurrentThread
GetProcAddress
SetThreadPriority
VirtualQuery
GetCommandLineW
GetCurrentDirectoryW
DeleteFileW
OutputDebugStringA
GetTickCount
FormatMessageA
GetProcessId
QueryPerformanceCounter
QueryPerformanceFrequency
Sleep
GetThreadPriority
GetSystemTimeAsFileTime
QueryThreadCycleTime
SystemTimeToTzSpecificLocalTime
TzSpecificLocalTimeToSystemTime
FileTimeToSystemTime
SystemTimeToFileTime
WaitForSingleObject
GetExitCodeProcess
IsDebuggerPresent
RaiseException
CreateThread
CreateProcessW
AssignProcessToJobObject
SetInformationJobObject
AttachConsole
AllocConsole
FreeLibrary
LoadLibraryW
lstrcmpiA
GetVersionExW
GetNativeSystemInfo
HeapSetInformation
GetProcessTimes
CreateFileMappingW
MapViewOfFile
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
InitializeConditionVariable
WakeConditionVariable
SleepConditionVariableSRW
ResetEvent
WaitForMultipleObjects
RtlCaptureStackBackTrace
SetUnhandledExceptionFilter
GetThreadId
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
CreateDirectoryW
GetFileAttributesW
GetFileAttributesExW
QueryDosDeviceW
RemoveDirectoryW
SetFileAttributesW
GetTempPathW
MoveFileExW
GetUserDefaultLangID
ExpandEnvironmentStringsW
CreateIoCompletionPort
GetQueuedCompletionStatus
PostQueuedCompletionStatus
GetSystemPowerStatus
FlushFileBuffers
GetFileInformationByHandle
GetFileSizeEx
SetEndOfFile
SetFilePointerEx
SetFileTime
FindClose
FindFirstFileW
FindFirstFileExW
FindNextFileW
UnregisterWaitEx
RegisterWaitForSingleObject
ReleaseSRWLockShared
AcquireSRWLockShared
GetModuleHandleExA
RtlAddFunctionTable
RtlDeleteFunctionTable
CreateRemoteThread
GetSystemDirectoryW
GetWindowsDirectoryW
GetNamedPipeInfo
CancelIo
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
InitOnceExecuteOnce
RtlVirtualUnwind
VirtualProtectEx
QueryFullProcessImageNameW
InitializeCriticalSection
DeleteCriticalSection
TerminateJobObject
GetUserDefaultLCID
GetFileType
ProcessIdToSessionId
GetProcessHandleCount
SignalObjectAndWait
CreateMutexW
VirtualAllocEx
VirtualFreeEx
CreateJobObjectW
DebugBreak
lstrlenW
SearchPathW
WideCharToMultiByte
GetEnvironmentVariableW
SetEnvironmentVariableW
OutputDebugStringW
MultiByteToWideChar
GetLocaleInfoW
GetTimeZoneInformation
CreateFileA
ReleaseSemaphore
CreateSemaphoreW
FlushInstructionCache
LockFileEx
UnlockFileEx
MapViewOfFileEx
SwitchToThread
GetThreadTimes
GetSystemTime
DisconnectNamedPipe
SetNamedPipeHandleState
PeekNamedPipe
GetNamedPipeHandleStateW
IsValidCodePage
WriteConsoleW
EnumSystemLocalesW
IsValidLocale
ReadConsoleW
FreeLibraryAndExitThread
ExitThread
GetCurrentDirectoryA
SetCurrentDirectoryA
SetEnvironmentVariableA
GetACP
GetFullPathNameA
GetFullPathNameW
GetConsoleMode
GetConsoleCP
SetStdHandle
GetDriveTypeW
GetProcessHeap
LoadLibraryExW
RtlPcToFileHeader
RtlUnwindEx
GetStartupInfoW
InitializeSListHead
IsProcessorFeaturePresent
UnhandledExceptionFilter
RtlLookupFunctionEntry
RtlCaptureContext
GetCPInfo
LCMapStringW
CompareStringW
DecodePointer
EncodePointer
GetStringTypeW

ole32

CoUninitialize
CoInitializeEx
CoTaskMemFree
CoCreateGuid

psapi

GetMappedFileNameW

shell32

CommandLineToArgvW
SHGetKnownFolderPath
SHGetFolderPathW

user32

wsprintfW
MessageBoxW
DefWindowProcW
UnregisterClassW
RegisterClassExW
CreateWindowExW
DestroyWindow
CloseDesktop
CloseWindowStation
CreateDesktopW
GetThreadDesktop
CreateWindowStationW
SetProcessWindowStation
GetProcessWindowStation
GetUserObjectInformationW
SystemParametersInfoW

usp10

ScriptFreeCache
ScriptItemize
ScriptShape

version

GetFileVersionInfoW
VerQueryValueW
GetFileVersionInfoSizeW

winmm

timeGetTime
timeEndPeriod
timeGetDevCaps
timeBeginPeriod

ws2_32

setsockopt
send
select
recv
ntohs
listen
htons
shutdown
getsockname
closesocket
bind
accept
socket
gethostbyname
WSAGetLastError
WSACloseEvent
WSACreateEvent
WSAEventSelect
WSAStartup
htonl
WSACleanup

userenv

DestroyEnvironmentBlock
GetProfileType
CreateEnvironmentBlock

Exports

Exports

ClearBreakpadPipeEnvironmentVariable
ClearCrashKeyValueImpl
CrashForException
DumpProcess
DumpProcessWithoutCrash
GetHandleVerifier
InjectDumpForHangDebugging
InjectDumpProcessWithoutCrash
IsSandboxedProcess
RegisterNonABICompliantCodeRange
SetCrashKeyValueImpl
TerminateProcessWithoutDump
UnregisterNonABICompliantCodeRange
_ovly_debug_event
nacl_global_xlate_base
nacl_thread_ids
nacl_user

Sections

.text
Size: 3.2MB - Virtual size: 3.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.5MB - Virtual size: 1.5MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 20KB - Virtual size: 205KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 196KB - Virtual size: 196KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 25B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 1024B - Virtual size: 832B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 32KB - Virtual size: 32KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 52KB - Virtual size: 51KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 22KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7730b48e1650ac28d876f26706080a13

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

dbghelp

gdi32

kernel32

ole32

psapi

shell32

user32

usp10

version

winmm

ws2_32

userenv

Exports

Exports

Sections

.text Size: 3.2MB - Virtual size: 3.2MB

.rdata Size: 1.5MB - Virtual size: 1.5MB

.data Size: 20KB - Virtual size: 205KB

.pdata Size: 196KB - Virtual size: 196KB

.tls Size: 512B - Virtual size: 25B

.gfids Size: 1024B - Virtual size: 832B

_RDATA Size: 32KB - Virtual size: 32KB

.rsrc Size: 52KB - Virtual size: 51KB

.reloc Size: 22KB - Virtual size: 21KB

.text
Size: 3.2MB - Virtual size: 3.2MB

.rdata
Size: 1.5MB - Virtual size: 1.5MB

.data
Size: 20KB - Virtual size: 205KB

.pdata
Size: 196KB - Virtual size: 196KB

.tls
Size: 512B - Virtual size: 25B

.gfids
Size: 1024B - Virtual size: 832B

_RDATA
Size: 32KB - Virtual size: 32KB

.rsrc
Size: 52KB - Virtual size: 51KB

.reloc
Size: 22KB - Virtual size: 21KB