Static task
static1
Behavioral task
behavioral1
Sample
2023-05-08_5661aec52fcc80ccd4c5d263e113c115_ryuk.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
2023-05-08_5661aec52fcc80ccd4c5d263e113c115_ryuk.exe
Resource
win10v2004-20230220-en
General
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Target
2023-05-08_5661aec52fcc80ccd4c5d263e113c115_ryuk
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Size
190KB
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MD5
5661aec52fcc80ccd4c5d263e113c115
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SHA1
b09fb5cfbfbadd6afdd536aa89ccab405ef8c5b2
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SHA256
6cbc05acf871c106f7804069fffef908472a31ea1a782add45a100d14c8f5ea0
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SHA512
15e2a11d1d0b614cc1181a787a3208d011447ce68f6be93df227bc1b1b95400151251cf0bf9013900876b1d8e9c93b05ab0af0f1112b2e50176879a94a19d30a
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SSDEEP
3072:wbYRYDEnRuxvB5oveeGiKhvFB1JWxEc2C+mZbD+o4Xd/x+j8TYQWuni/qpe:fYDcsTFbF75xCxk/dTB9pe
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 2023-05-08_5661aec52fcc80ccd4c5d263e113c115_ryuk
Files
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2023-05-08_5661aec52fcc80ccd4c5d263e113c115_ryuk.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