2024-04-21_85a3bc4af4b25eb25ae3d99069ffcc1d_ryuk

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General

Target

2024-04-21_85a3bc4af4b25eb25ae3d99069ffcc1d_ryuk
Size

319KB
MD5

85a3bc4af4b25eb25ae3d99069ffcc1d
SHA1

2462e8eb3714d8ce3bed7eba6995003edc44e4f2
SHA256

62dec7708006a086b91c6c3c7ef30a9810300d322bc3dba8050c6df87eee98c5
SHA512

95f8cfd40f2c3b913180bbf6099185b695967304425bf2aef16e64cb8deb91074599718c692a3ec2e60aec033274000fb6fc334b2ddcde7ca40c6f2dac02a491
SSDEEP

6144:bqzExtHoFBjSBFkKp21bx5UEVGEXLTkqjob:bdxtIFJfKp

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-21_85a3bc4af4b25eb25ae3d99069ffcc1d_ryuk

Files

2024-04-21_85a3bc4af4b25eb25ae3d99069ffcc1d_ryuk
.exe windows:6 windows x64 arch:x64

51d617ae6fcc402eed26a238ddc44767

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

kernel32

MultiByteToWideChar
FormatMessageW
GetLastError
LoadLibraryA
CloseHandle
RaiseException
LocalAlloc
LoadLibraryW
DecodePointer
GetProcAddress
DeleteCriticalSection
FreeLibrary
FreeConsole
InitializeCriticalSectionEx
ReadConsoleW
WriteConsoleW
CreateFileW
SetStdHandle
FindNextFileA
FindFirstFileExA
FindClose
SetEnvironmentVariableA
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetOEMCP
IsValidCodePage
HeapSize
WideCharToMultiByte
EnterCriticalSection
LeaveCriticalSection
EncodePointer
SetLastError
InitializeCriticalSectionAndSpinCount
CreateEventW
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
GetModuleHandleW
CompareStringW
LCMapStringW
GetLocaleInfoW
GetStringTypeW
GetCPInfo
LocalFree
IsDebuggerPresent
OutputDebugStringW
SetEvent
ResetEvent
WaitForSingleObjectEx
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
InitializeSListHead
GetCurrentProcess
TerminateProcess
RtlPcToFileHeader
RtlUnwindEx
LoadLibraryExW
GetModuleFileNameW
GetSystemInfo
VirtualAlloc
VirtualProtect
VirtualQuery
HeapAlloc
HeapReAlloc
HeapFree
ExitProcess
GetModuleHandleExW
GetStdHandle
WriteFile
GetModuleFileNameA
GetCommandLineA
GetCommandLineW
GetACP
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
GetFileType
GetConsoleCP
GetConsoleMode
FlushFileBuffers
ReadFile
SetFilePointerEx
GetProcessHeap

ole32

CoCreateInstance
CoUninitialize
CoInitialize
CLSIDFromString
CoInitializeEx
CoGetObject

oleaut32

VariantClear
SysAllocString
SysFreeString
VariantInit

urlmon

URLDownloadToFileA

advapi32

SystemFunction036

Sections

.text
Size: 150KB - Virtual size: 149KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 77KB - Virtual size: 76KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 72KB - Virtual size: 72KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

51d617ae6fcc402eed26a238ddc44767

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

ole32

oleaut32

urlmon

advapi32

Sections

.text Size: 150KB - Virtual size: 149KB

.rdata Size: 77KB - Virtual size: 76KB

.data Size: 5KB - Virtual size: 11KB

.pdata Size: 9KB - Virtual size: 9KB

.tls Size: 512B - Virtual size: 9B

.reloc Size: 3KB - Virtual size: 3KB

.rsrc Size: 72KB - Virtual size: 72KB

.text
Size: 150KB - Virtual size: 149KB

.rdata
Size: 77KB - Virtual size: 76KB

.data
Size: 5KB - Virtual size: 11KB

.pdata
Size: 9KB - Virtual size: 9KB

.tls
Size: 512B - Virtual size: 9B

.reloc
Size: 3KB - Virtual size: 3KB

.rsrc
Size: 72KB - Virtual size: 72KB