2024-04-25_3c3559bab7387057bb3b5dc53c3ca152_ryuk

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General

Target

2024-04-25_3c3559bab7387057bb3b5dc53c3ca152_ryuk
Size

616KB
MD5

3c3559bab7387057bb3b5dc53c3ca152
SHA1

aaad5a21dd889747ca3aa2892f3e9db34c496bd4
SHA256

d40fd07222121f6a9f28b5ed5e906075eaf54ac9b6243a734a2182eda457d6d3
SHA512

4d01adfb221460568fb1edbfb8455f7cdbafb9a13c0b0ec78be2874ac374d4f8e147a7aba7c5e185df86df976c3c37deb80d41cfea6a0a6a8c9fe91727de49f8
SSDEEP

12288:fg2SGyNiBjqaFZ1fSgDg6wOATytP/KQ4G1P9l0C:omyNiBjqaF7SgDgMAO5KQ4Gfl

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-25_3c3559bab7387057bb3b5dc53c3ca152_ryuk

Files

2024-04-25_3c3559bab7387057bb3b5dc53c3ca152_ryuk
.exe windows:6 windows x64 arch:x64

c43e37616e5153a157f6022f169d2b74

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

wsock32

WSACleanup
WSAGetLastError
WSAStartup
gethostname

advapi32

SystemFunction036
FreeSid
CheckTokenMembership
AllocateAndInitializeSid
RegGetValueA
GetUserNameA
RegCloseKey
RegOpenKeyExA

netapi32

Netbios

shell32

SHGetFolderPathA
SHCreateDirectoryExA

wintrust

WinVerifyTrust

kernel32

GetStringTypeW
HeapSize
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
Sleep
GetEnvironmentVariableA
CloseHandle
GetExitCodeProcess
OpenProcess
ReadFile
WriteFile
PeekNamedPipe
GetDriveTypeA
GetVolumeInformationA
GetLastError
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
SetEvent
ReleaseMutex
WaitForSingleObject
CreateMutexA
CreateEventA
CreateThread
FreeLibrary
GetModuleFileNameA
GetProcAddress
LoadLibraryA
LocalFree
FormatMessageA
GetStdHandle
GetTempPathA
WideCharToMultiByte
GetConsoleCP
GetConsoleOutputCP
ReadConsoleW
WriteConsoleA
SetConsoleCP
SetConsoleOutputCP
CreateFileA
FindClose
FindFirstFileA
FindNextFileA
MapViewOfFile
UnmapViewOfFile
CreateFileMappingA
MultiByteToWideChar
InitializeSRWLock
ReleaseSRWLockExclusive
ReleaseSRWLockShared
AcquireSRWLockExclusive
AcquireSRWLockShared
GetCurrentThreadId
GetExitCodeThread
SetFileTime
QueryPerformanceCounter
QueryPerformanceFrequency
HeapAlloc
HeapFree
GetProcessHeap
GetSystemInfo
GetSystemTimeAsFileTime
GetVersionExA
GetConsoleMode
SetConsoleMode
CreateToolhelp32Snapshot
Process32First
Process32Next
WriteConsoleW
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
GetCurrentProcessId
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlCaptureContext
GetModuleFileNameW
RtlUnwindEx
RtlPcToFileHeader
RaiseException
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
SetLastError
ExitProcess
GetModuleHandleExW
SetConsoleCtrlHandler
CreateFileW
GetDriveTypeW
GetFileInformationByHandle
GetFileType
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetFullPathNameW
LockFileEx
UnlockFileEx
SetStdHandle
ExitThread
FreeLibraryAndExitThread
GetCommandLineA
GetCommandLineW
DuplicateHandle
GetDateFormatW
GetTimeFormatW
CompareStringW
LCMapStringW
FlushFileBuffers
GetTimeZoneInformation
HeapReAlloc
SetEnvironmentVariableW
GetFileSizeEx
SetFilePointerEx
GetCurrentDirectoryW
DeleteFileW
CreateDirectoryW
GetFileAttributesExW
MoveFileExW
SetEndOfFile
ReadConsoleInputW

Sections

.text
Size: 427KB - Virtual size: 427KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 55KB - Virtual size: 54KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 116KB - Virtual size: 124KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 15KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

c43e37616e5153a157f6022f169d2b74

Headers

DLL Characteristics

File Characteristics

Imports

wsock32

advapi32

netapi32

shell32

wintrust

kernel32

Sections

.text Size: 427KB - Virtual size: 427KB

.rdata Size: 55KB - Virtual size: 54KB

.data Size: 116KB - Virtual size: 124KB

.pdata Size: 15KB - Virtual size: 14KB

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 427KB - Virtual size: 427KB

.rdata
Size: 55KB - Virtual size: 54KB

.data
Size: 116KB - Virtual size: 124KB

.pdata
Size: 15KB - Virtual size: 14KB

.reloc
Size: 2KB - Virtual size: 1KB