2024-03-18_dce3c7fabc95b24bb77a3ecc50326ec2_ryuk

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General

Target

2024-03-18_dce3c7fabc95b24bb77a3ecc50326ec2_ryuk
Size

520KB
MD5

dce3c7fabc95b24bb77a3ecc50326ec2
SHA1

d72855a521b8ebb8a8f1b23d32c28b78bfd90dba
SHA256

277ae562b6dca43804135b848e77b18c5caf7a1b14e727fa632b1e8be8c8cebb
SHA512

acd191edca76f66b6b9fdf160f77bb3f6614eee23b92b8851cd06aa15fcb53e7d653dd20e2b3a117f47a014169fe524b272a8d754848578ba267e0f29c00f83f
SSDEEP

12288:lUa+UTnIpzNsnUOlrhWjUgNCXroFtYvWJ4o1oCNR:CHhn9jUgI7oFn1f

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-18_dce3c7fabc95b24bb77a3ecc50326ec2_ryuk

Files

2024-03-18_dce3c7fabc95b24bb77a3ecc50326ec2_ryuk
.exe windows:5 windows x64 arch:x64

f3149add7a5ea677f0424b502df0799f

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\build\slave\Win\build\src\out\Release\crash_service64.exe.pdb

Imports

wininet

InternetReadFile
InternetQueryDataAvailable
InternetSetOptionW
HttpOpenRequestW
InternetConnectW
HttpSendRequestW
HttpQueryInfoW
InternetCloseHandle
InternetOpenW
InternetCrackUrlW
HttpAddRequestHeadersW

kernel32

GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
GetModuleHandleW
GetProcAddress
DeleteFileW
SetEvent
CreateEventW
Sleep
QueueUserWorkItem
LocalFree
CreateFileW
WriteFile
OutputDebugStringA
CloseHandle
GetLastError
SetLastError
GetCurrentProcessId
GetTickCount
GetModuleFileNameW
GetCommandLineW
GetCurrentDirectoryW
CreateDirectoryW
GetFileAttributesW
ReadFile
RemoveDirectoryW
SetFileAttributesW
GetTempPathW
GetCurrentProcess
CopyFileW
MoveFileExW
ExpandEnvironmentStringsW
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
GetVersionExW
GetNativeSystemInfo
IsDebuggerPresent
RtlCaptureStackBackTrace
SetUnhandledExceptionFilter
DuplicateHandle
RaiseException
GetCurrentThreadId
GetProcessHeap
QueryPerformanceCounter
GetSystemTimeAsFileTime
FlushFileBuffers
SetEndOfFile
SetFilePointerEx
FindClose
FindFirstFileW
FindFirstFileExW
FindNextFileW
GetSystemDirectoryW
GetWindowsDirectoryW
UnregisterWaitEx
RegisterWaitForSingleObject
GetModuleHandleExW
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
VirtualQuery
ResetEvent
LoadLibraryW
GetProcessTimes
GetSystemInfo
OpenProcess
ReadProcessMemory
UnregisterWait
ConnectNamedPipe
DisconnectNamedPipe
CreateNamedPipeW
GetOverlappedResult
GetOEMCP
ReleaseMutex
CreateMutexW
FreeLibrary
GetSystemTime
MultiByteToWideChar
WideCharToMultiByte
GetCommandLineA
OutputDebugStringW
HeapSize
LoadResource
LockResource
SizeofResource
FindResourceW
GetUserDefaultUILanguage
InitializeCriticalSection
IsValidCodePage
ReadConsoleW
GetDriveTypeW
GetTimeZoneInformation
WriteConsoleW
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
HeapReAlloc
HeapFree
HeapAlloc
GetACP
GetStdHandle
ExitProcess
GetFileType
SetStdHandle
GetFullPathNameW
GetConsoleMode
VirtualProtect
LoadLibraryExA
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
TerminateProcess
InitializeSListHead
GetStringTypeW
EncodePointer
DecodePointer
CompareStringW
LCMapStringW
GetLocaleInfoW
GetCPInfo
RtlUnwindEx
RtlPcToFileHeader
LoadLibraryExW
GetConsoleCP

advapi32

SystemFunction036
RegQueryValueExW
RegOpenKeyExW
RegCreateKeyExW
RegCloseKey
ConvertStringSecurityDescriptorToSecurityDescriptorW
GetSecurityDescriptorSacl

ole32

CoTaskMemFree

user32

UpdateWindow
CreateWindowExW
RegisterClassExW
PostQuitMessage
DefWindowProcW
PostMessageW
DispatchMessageW
TranslateMessage
GetMessageW

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 376KB - Virtual size: 375KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 107KB - Virtual size: 107KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 23KB - Virtual size: 23KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 1024B - Virtual size: 856B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 2B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1024B - Virtual size: 920B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f3149add7a5ea677f0424b502df0799f

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

wininet

kernel32

advapi32

ole32

user32

Exports

Exports

Sections

.text Size: 376KB - Virtual size: 375KB

.rdata Size: 107KB - Virtual size: 107KB

.data Size: 5KB - Virtual size: 17KB

.pdata Size: 23KB - Virtual size: 23KB

.gfids Size: 1024B - Virtual size: 856B

.tls Size: 512B - Virtual size: 2B

.rsrc Size: 1024B - Virtual size: 920B

.reloc Size: 4KB - Virtual size: 4KB

.text
Size: 376KB - Virtual size: 375KB

.rdata
Size: 107KB - Virtual size: 107KB

.data
Size: 5KB - Virtual size: 17KB

.pdata
Size: 23KB - Virtual size: 23KB

.gfids
Size: 1024B - Virtual size: 856B

.tls
Size: 512B - Virtual size: 2B

.rsrc
Size: 1024B - Virtual size: 920B

.reloc
Size: 4KB - Virtual size: 4KB