2024-03-27_458f4151d8a6895623c89f6540f18822_ryuk

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General

Target

2024-03-27_458f4151d8a6895623c89f6540f18822_ryuk
Size

4.5MB
MD5

458f4151d8a6895623c89f6540f18822
SHA1

824a3aa1b9959ba392bb5fa7b95a40cb2904624e
SHA256

732af5f931ac606afc2e3f52cdb9fe9b820a700405efd99ee133b2042f1ba764
SHA512

3ed78ddb7e7314673815330519e4bafe0131fef8e6dcbed0b9c93c540eb1a7111584897b4de623d9311f77be141281ff1309f2c73b1406f56851ab38731863a7
SSDEEP

98304:Wrgg88j9QYmCmnuctkgjGCES+ZOsxjvP:Wk8jjmCmnuctkgjGCES+A4jv

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-27_458f4151d8a6895623c89f6540f18822_ryuk

Files

2024-03-27_458f4151d8a6895623c89f6540f18822_ryuk
.exe windows:5 windows x64 arch:x64

bd042c67ac4893a967709a604545d62b

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
InitializeAcl
InitializeSecurityDescriptor
SetSecurityDescriptorDacl
SystemFunction036
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

GetEnvironmentStringsW
FreeEnvironmentStringsW
HeapSize
GetCommandLineA
TransactNamedPipe
DuplicateHandle
GetCurrentProcess
GetStdHandle
GetLongPathNameW
CloseHandle
GetLastError
SetLastError
ResumeThread
IsProcessInJob
QueryInformationJobObject
GetModuleFileNameW
GetModuleHandleW
GetModuleHandleExW
HeapAlloc
HeapReAlloc
HeapFree
DebugActiveProcess
GetModuleHandleA
LocalFree
FormatMessageW
CreateFileW
CreateNamedPipeW
WaitNamedPipeW
GetCurrentProcessId
GetCurrentThreadId
ConnectNamedPipe
VirtualFree
UnmapViewOfFile
GetSystemInfo
VirtualAlloc
VirtualProtect
CreateEventW
ContinueDebugEvent
WaitForDebugEvent
SetEvent
TerminateProcess
SuspendThread
GetThreadContext
SetThreadContext
VirtualQueryEx
ReadProcessMemory
WriteProcessMemory
ReadFile
WriteFile
SetHandleInformation
OpenProcess
GetCurrentThread
GetProcAddress
SetThreadPriority
VirtualQuery
ExitProcess
GetCommandLineW
GetCurrentDirectoryW
DeleteFileW
OutputDebugStringA
GetTickCount
FormatMessageA
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
GetProcessId
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
InitializeConditionVariable
WakeConditionVariable
SleepConditionVariableSRW
CreateFileMappingW
MapViewOfFile
ResetEvent
WaitForMultipleObjects
RtlCaptureStackBackTrace
SetUnhandledExceptionFilter
GetThreadId
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
CreateIoCompletionPort
GetQueuedCompletionStatus
PostQueuedCompletionStatus
CreateDirectoryW
GetFileAttributesW
GetFileAttributesExW
QueryDosDeviceW
RemoveDirectoryW
SetFileAttributesW
GetTempPathW
MoveFileExW
GetUserDefaultLangID
ExpandEnvironmentStringsW
GetSystemPowerStatus
FlushFileBuffers
GetFileInformationByHandle
GetFileSizeEx
SetEndOfFile
SetFilePointerEx
SetFileTime
ReleaseSRWLockShared
AcquireSRWLockShared
GetModuleHandleExA
FindClose
FindFirstFileW
FindFirstFileExW
FindNextFileW
UnregisterWaitEx
RegisterWaitForSingleObject
RtlAddFunctionTable
RtlDeleteFunctionTable
CreateRemoteThread
GetSystemDirectoryW
GetWindowsDirectoryW
GetNamedPipeInfo
CancelIo
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
InitOnceExecuteOnce
RtlVirtualUnwind
VirtualProtectEx
InitializeCriticalSection
DeleteCriticalSection
TerminateJobObject
GetUserDefaultLCID
GetFileType
ProcessIdToSessionId
GetProcessHandleCount
SignalObjectAndWait
CreateMutexW
VirtualAllocEx
VirtualFreeEx
CreateJobObjectW
DebugBreak
lstrlenW
SearchPathW
WideCharToMultiByte
GetEnvironmentVariableW
SetEnvironmentVariableW
OutputDebugStringW
MultiByteToWideChar
GetLocaleInfoW
GetTimeZoneInformation
CreateFileA
FlushInstructionCache
LockFileEx
UnlockFileEx
MapViewOfFileEx
SwitchToThread
GetThreadTimes
GetSystemTime
DisconnectNamedPipe
SetNamedPipeHandleState
PeekNamedPipe
GetNamedPipeHandleStateW
ReleaseSemaphore
CreateSemaphoreW
GetOEMCP
IsValidCodePage
WriteConsoleW
EnumSystemLocalesW
IsValidLocale
ReadConsoleW
GetACP
FreeLibraryAndExitThread
ExitThread
GetCurrentDirectoryA
SetCurrentDirectoryA
SetEnvironmentVariableA
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
CoCreateGuid
CoTaskMemFree

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

timeGetDevCaps
timeBeginPeriod
timeGetTime
timeEndPeriod

ws2_32

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

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: 2.8MB - Virtual size: 2.8MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.4MB - Virtual size: 1.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 19KB - Virtual size: 206KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 140KB - Virtual size: 140KB

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: 840B

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

bd042c67ac4893a967709a604545d62b

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

dbghelp

gdi32

kernel32

ole32

shell32

user32

usp10

version

winmm

ws2_32

userenv

Exports

Exports

Sections

.text Size: 2.8MB - Virtual size: 2.8MB

.rdata Size: 1.4MB - Virtual size: 1.4MB

.data Size: 19KB - Virtual size: 206KB

.pdata Size: 140KB - Virtual size: 140KB

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

.gfids Size: 1024B - Virtual size: 840B

_RDATA Size: 32KB - Virtual size: 32KB

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

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

.text
Size: 2.8MB - Virtual size: 2.8MB

.rdata
Size: 1.4MB - Virtual size: 1.4MB

.data
Size: 19KB - Virtual size: 206KB

.pdata
Size: 140KB - Virtual size: 140KB

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

.gfids
Size: 1024B - Virtual size: 840B

_RDATA
Size: 32KB - Virtual size: 32KB

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

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