2024-01-09_7cfafc88805e41c8ecf91df55f9616f4_ryuk

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General

Target

2024-01-09_7cfafc88805e41c8ecf91df55f9616f4_ryuk
Size

2.0MB
MD5

7cfafc88805e41c8ecf91df55f9616f4
SHA1

deadb08b12f7c1f7ee7128590991f2003de38068
SHA256

ad59b654a06807009f5be89198547a94f6d505ef72584bade0e9943fcd1ea061
SHA512

7d26e7ffdb213ab9a88d43b011bf91fc420939d0a71dd78fcdc94f7e7debb0dfcda9149a5d51c92a101cfa2f242e7d845f048395841bbb1c606dc76a6a14f9d0
SSDEEP

49152:U3wR2xs4r4VMm9NRzzFbju+Gb2PJsKT12VHb+E6Z:324dNRzgOd20E6Z

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-01-09_7cfafc88805e41c8ecf91df55f9616f4_ryuk

Files

2024-01-09_7cfafc88805e41c8ecf91df55f9616f4_ryuk
.exe windows:5 windows x64 arch:x64

b091c551f027b653f08a72c40b3a7d32

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

Imports

advapi32

AddAce
CopySid
CreateProcessAsUserW
EventRegister
EventUnregister
EventWrite
GetAclInformation
GetLengthSid
GetSecurityDescriptorControl
GetSecurityDescriptorDacl
GetSecurityDescriptorGroup
GetSecurityDescriptorOwner
GetSecurityDescriptorSacl
GetSidLengthRequired
GetSidSubAuthority
InitializeAcl
InitializeSecurityDescriptor
InitializeSid
IsValidSid
MakeAbsoluteSD
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
RegisterServiceCtrlHandlerW
SetSecurityDescriptorDacl
SetSecurityDescriptorGroup
SetSecurityDescriptorOwner
SetServiceStatus
StartServiceCtrlDispatcherW
SystemFunction036

oleaut32

SysAllocStringByteLen
SysStringByteLen

user32

AllowSetForegroundWindow
GetActiveWindow
UnregisterClassW

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AssignProcessToJobObject
CloseHandle
CompareStringW
CreateDirectoryW
CreateEventW
CreateFileA
CreateFileMappingW
CreateFileW
CreateProcessW
CreateThread
DecodePointer
DeleteCriticalSection
DeleteFileW
DeleteProcThreadAttributeList
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesW
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProcessId
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadId
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetVersionExW
GetWindowsDirectoryW
HeapAlloc
HeapDestroy
HeapFree
HeapReAlloc
HeapSetInformation
HeapSize
InitOnceExecuteOnce
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeProcThreadAttributeList
InitializeSListHead
InitializeSRWLock
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LocalFree
MapViewOfFile
MoveFileExW
MultiByteToWideChar
OpenProcess
OutputDebugStringA
OutputDebugStringW
QueryFullProcessImageNameA
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RemoveDirectoryW
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointer
SetFilePointerEx
SetFileTime
SetHandleInformation
SetLastError
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SystemTimeToFileTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
TzSpecificLocalTimeToSystemTime
UnhandledExceptionFilter
UnmapViewOfFile
UnregisterWaitEx
UpdateProcThreadAttribute
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiW
lstrlenA

ole32

CoAddRefServerProcess
CoImpersonateClient
CoInitializeEx
CoInitializeSecurity
CoRegisterClassObject
CoRegisterInitializeSpy
CoReleaseServerProcess
CoResumeClassObjects
CoRevertToSelf
CoRevokeClassObject
CoRevokeInitializeSpy
CoTaskMemFree
CoUninitialize
IIDFromString

crypt32

CryptProtectData
CryptUnprotectData

rpcrt4

I_RpcOpenClientProcess

shell32

CommandLineToArgvW
SHGetFolderPathW
SHGetKnownFolderPath
ShellExecuteExW

userenv

CreateEnvironmentBlock
DestroyEnvironmentBlock

shlwapi

PathMatchSpecW

winmm

timeGetTime

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 1.3MB - Virtual size: 1.3MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 205KB - Virtual size: 205KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 62KB - Virtual size: 108KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 45KB - Virtual size: 44KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 40B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 10KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 108B

.tls
Size: 512B - Virtual size: 385B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.voltbl
Size: 512B - Virtual size: 70B

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 404KB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

b091c551f027b653f08a72c40b3a7d32

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

oleaut32

user32

kernel32

ole32

crypt32

rpcrt4

shell32

userenv

shlwapi

winmm

Exports

Exports

Sections

.text Size: 1.3MB - Virtual size: 1.3MB

.rdata Size: 205KB - Virtual size: 205KB

.data Size: 62KB - Virtual size: 108KB

.pdata Size: 45KB - Virtual size: 44KB

.00cfg Size: 512B - Virtual size: 40B

.gxfg Size: 10KB - Virtual size: 10KB

.retplne Size: 512B - Virtual size: 108B

.tls Size: 512B - Virtual size: 385B

.voltbl Size: 512B - Virtual size: 70B

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 6KB - Virtual size: 5KB

.reloc Size: 404KB - Virtual size: 1.1MB

.text
Size: 1.3MB - Virtual size: 1.3MB

.rdata
Size: 205KB - Virtual size: 205KB

.data
Size: 62KB - Virtual size: 108KB

.pdata
Size: 45KB - Virtual size: 44KB

.00cfg
Size: 512B - Virtual size: 40B

.gxfg
Size: 10KB - Virtual size: 10KB

.retplne
Size: 512B - Virtual size: 108B

.tls
Size: 512B - Virtual size: 385B

.voltbl
Size: 512B - Virtual size: 70B

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 6KB - Virtual size: 5KB

.reloc
Size: 404KB - Virtual size: 1.1MB