2023-05-08_5661aec52fcc80ccd4c5d263e113c115_ryuk[.]exe

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General

Target

2023-05-08_5661aec52fcc80ccd4c5d263e113c115_ryuk.exe
Size

190KB
MD5

5661aec52fcc80ccd4c5d263e113c115
SHA1

b09fb5cfbfbadd6afdd536aa89ccab405ef8c5b2
SHA256

6cbc05acf871c106f7804069fffef908472a31ea1a782add45a100d14c8f5ea0
SHA512

15e2a11d1d0b614cc1181a787a3208d011447ce68f6be93df227bc1b1b95400151251cf0bf9013900876b1d8e9c93b05ab0af0f1112b2e50176879a94a19d30a
SSDEEP

3072:wbYRYDEnRuxvB5oveeGiKhvFB1JWxEc2C+mZbD+o4Xd/x+j8TYQWuni/qpe:fYDcsTFbF75xCxk/dTB9pe

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

Processes:

resource
2023-05-08_5661aec52fcc80ccd4c5d263e113c115_ryuk.exe

Files

2023-05-08_5661aec52fcc80ccd4c5d263e113c115_ryuk.exe
.exe windows x86

04fbb09ac34d8c7a063eebe1646f11cf

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

iphlpapi

IcmpCloseHandle
IcmpCreateFile
GetAdaptersAddresses
IcmpSendEcho
GetIpNetTable

kernel32

SetLastError
WriteProcessMemory
WaitForMultipleObjects
Sleep
SetFilePointer
CloseHandle
GetTickCount
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetCommandLineW
GetTempPathW
GetWindowsDirectoryW
CreateFileW
DeleteFileW
CopyFileW
GetVersionExW
CreateToolhelp32Snapshot
Process32FirstW
Process32NextW
GetCurrentThread
CreateRemoteThread
CreateThread
ExitProcess
GetCurrentProcess
OpenProcess
GetProcessHeap
HeapFree
HeapAlloc
VirtualFreeEx
VirtualAllocEx
VirtualFree
VirtualAlloc
LocalFree
GlobalFree
GlobalAlloc
GetProcAddress
FreeLibrary
LoadLibraryA
WriteConsoleW
SetFilePointerEx
HeapReAlloc
HeapSize
GetConsoleMode
GetConsoleCP
DecodePointer
FlushFileBuffers
SetStdHandle
FreeEnvironmentStringsW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
GetModuleHandleW
TerminateProcess
RaiseException
RtlUnwind
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
GetModuleHandleExW
GetStdHandle
WriteFile
MultiByteToWideChar
WideCharToMultiByte
GetACP
GetStringTypeW
LCMapStringW
GetFileType
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetOEMCP
GetCPInfo
GetCommandLineA
GetEnvironmentStringsW

advapi32

OpenProcessToken
OpenThreadToken
GetTokenInformation
AdjustTokenPrivileges
LookupAccountSidW
OpenSCManagerW
EnumServicesStatusW
LookupPrivilegeValueW
ImpersonateSelf

shell32

ShellExecuteW
CommandLineToArgvW

ws2_32

socket
setsockopt
sendto
WSAStartup
htonl
closesocket
bind
WSACleanup
htons
inet_addr

Sections

.text
Size: 90KB - Virtual size: 90KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 29KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 69KB - Virtual size: 1.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 512B - Virtual size: 220B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

04fbb09ac34d8c7a063eebe1646f11cf

Headers

DLL Characteristics

File Characteristics

Imports

iphlpapi

kernel32

advapi32

shell32

ws2_32

Sections

.text Size: 90KB - Virtual size: 90KB

.rdata Size: 29KB - Virtual size: 28KB

.data Size: 69KB - Virtual size: 1.3MB

.gfids Size: 512B - Virtual size: 220B

.text
Size: 90KB - Virtual size: 90KB

.rdata
Size: 29KB - Virtual size: 28KB

.data
Size: 69KB - Virtual size: 1.3MB

.gfids
Size: 512B - Virtual size: 220B