2024-05-03_1fbeba64067262025810d48d3eedc7fa_ryuk

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General

Target

2024-05-03_1fbeba64067262025810d48d3eedc7fa_ryuk
Size

1.4MB
MD5

1fbeba64067262025810d48d3eedc7fa
SHA1

3280e03c1bda4de67b327d1a75c46017c17557a8
SHA256

8a333571bc5f3eecf5856786c465157cf281ba33a4b414f0be74b19eeec35bd0
SHA512

84e43e137657dcd608ad31da7dd16892f2f86963f834a2751ab0046421c5f14fdc64d951284b87c2f7814d983a68a6f2c7a4af477fa0ba323e34e75cb3df2a89
SSDEEP

24576:nzR4RBJYqToebZaHxejjsWG1j3QZgn2g8i:N4RBNTo6YH4kWejAZdg

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-03_1fbeba64067262025810d48d3eedc7fa_ryuk

Files

2024-05-03_1fbeba64067262025810d48d3eedc7fa_ryuk
.exe windows:5 windows x64 arch:x64

c91b1c798cd4a7f1ccaac356d613eab5

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

api-ms-win-core-winrt-error-l1-1-0

RoOriginateError

progwrp

AcquireSRWLockExclusive
AddVectoredExceptionHandler
DecodePointer
EncodePointer
FindFirstFileExW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
GetModuleHandleExW
GetNativeSystemInfo
GetProcAddress
GetProcessId
GetProductInfo
GetThreadId
InitOnceExecuteOnce
InitializeSListHead
IsWow64Process
LoadLibraryW
NtOpenKeyEx
QueryThreadCycleTime
QueryWorkingSetEx
ReleaseSRWLockExclusive
RemoveVectoredExceptionHandler
SHGetKnownFolderPath
SetFileInformationByHandle
SleepConditionVariableSRW
SystemFunction036
TLSInit_DllMain_ThreadAttach
TryAcquireSRWLockExclusive
WakeAllConditionVariable
WakeConditionVariable

advapi32

BuildExplicitAccessWithNameW
BuildSecurityDescriptorW
BuildTrusteeWithSidW
ConvertStringSecurityDescriptorToSecurityDescriptorW
ConvertStringSidToSidW
GetLengthSid
GetNamedSecurityInfoW
GetSecurityDescriptorControl
GetSecurityDescriptorDacl
GetSecurityDescriptorGroup
GetSecurityDescriptorOwner
GetSecurityDescriptorSacl
IsValidAcl
IsValidSecurityDescriptor
IsValidSid
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
SetEntriesInAclW
SetNamedSecurityInfoW
SetSecurityInfo

shell32

CommandLineToArgvW
ord680
SHGetFolderPathW
ShellExecuteExW

user32

AllowSetForegroundWindow
SendInput

kernel32

CloseHandle
CompareStringW
CreateDirectoryW
CreateEventW
CreateFileW
CreateNamedPipeW
CreateProcessW
CreateThread
DeleteCriticalSection
DeleteFileW
DuplicateHandle
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FileTimeToSystemTime
FindClose
FindNextFileW
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameExW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetFileAttributesW
GetFileInformationByHandle
GetFileSizeEx
GetFileTime
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleW
GetOEMCP
GetProcessHeap
GetProcessTimes
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadPriority
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetUserDefaultLangID
GetVersionExW
GetWindowsDirectoryW
HeapSetInformation
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LocalFree
LockFileEx
MoveFileW
MultiByteToWideChar
OpenProcess
OutputDebugStringW
PeekNamedPipe
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
RemoveDirectoryW
ReplaceFileW
ResetEvent
SetConsoleCtrlHandler
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointerEx
SetLastError
SetNamedPipeHandleState
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepEx
SwitchToThread
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TransactNamedPipe
UnhandledExceptionFilter
UnlockFileEx
UnmapViewOfFile
UnregisterWaitEx
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitNamedPipeW
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpW

ole32

CoAddRefServerProcess
CoInitializeEx
CoRegisterClassObject
CoRegisterInitializeSpy
CoReleaseServerProcess
CoResumeClassObjects
CoRevokeClassObject
CoRevokeInitializeSpy
CoTaskMemFree
CoUninitialize

version

GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW

ntdll

NtClose
NtQueryValueKey
RtlCaptureContext
RtlCaptureStackBackTrace
RtlFormatCurrentUserKeyPath
RtlFreeUnicodeString
RtlInitUnicodeString
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
VerSetConditionMask

winmm

timeGetTime

shlwapi

PathMatchSpecW

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 183KB - Virtual size: 183KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 59KB - Virtual size: 99KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 29KB - Virtual size: 29KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 11KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 140B

.tls
Size: 512B - Virtual size: 441B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

CPADinfo
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

c91b1c798cd4a7f1ccaac356d613eab5

Headers

DLL Characteristics

File Characteristics

Imports

api-ms-win-core-winrt-error-l1-1-0

progwrp

advapi32

shell32

user32

kernel32

ole32

version

ntdll

winmm

shlwapi

Exports

Exports

Sections

.text Size: 1.1MB - Virtual size: 1.1MB

.rdata Size: 183KB - Virtual size: 183KB

.data Size: 59KB - Virtual size: 99KB

.pdata Size: 29KB - Virtual size: 29KB

.gxfg Size: 11KB - Virtual size: 11KB

.retplne Size: 512B - Virtual size: 140B

.tls Size: 512B - Virtual size: 441B

CPADinfo Size: 512B - Virtual size: 56B

_RDATA Size: 512B - Virtual size: 500B

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

.reloc Size: 6KB - Virtual size: 6KB

.text
Size: 1.1MB - Virtual size: 1.1MB

.rdata
Size: 183KB - Virtual size: 183KB

.data
Size: 59KB - Virtual size: 99KB

.pdata
Size: 29KB - Virtual size: 29KB

.gxfg
Size: 11KB - Virtual size: 11KB

.retplne
Size: 512B - Virtual size: 140B

.tls
Size: 512B - Virtual size: 441B

CPADinfo
Size: 512B - Virtual size: 56B

_RDATA
Size: 512B - Virtual size: 500B

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

.reloc
Size: 6KB - Virtual size: 6KB