Static task
static1
Behavioral task
behavioral1
Sample
2024-05-20_32f7e7fdc604c9d0eae8e74c157b20cd_ryuk.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-05-20_32f7e7fdc604c9d0eae8e74c157b20cd_ryuk.exe
Resource
win10v2004-20240508-en
General
-
Target
2024-05-20_32f7e7fdc604c9d0eae8e74c157b20cd_ryuk
-
Size
1.2MB
-
MD5
32f7e7fdc604c9d0eae8e74c157b20cd
-
SHA1
c204a0771185f902ca18dc04b75f6962b499cfe9
-
SHA256
265dfb6ceb1f85df6a3e60417a8c5b99042c559d6b7ada6b03b51e03e6b6a076
-
SHA512
3e363715ff18925406a4ce2dee6c180323144c876f647e1700703d01a1a561e096c2f746a0bbe155db1a0b73d0054299516d751f131179c38f2f219b5ef4d5cc
-
SSDEEP
24576:hz1VGh4H1/uYMSHWOb9yYjkTfTRhmvr/IG03FZhnghFa:hZgmH2GyKkTf9Mr/EZhw
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-20_32f7e7fdc604c9d0eae8e74c157b20cd_ryuk
Files
-
2024-05-20_32f7e7fdc604c9d0eae8e74c157b20cd_ryuk.exe windows:6 windows x64 arch:x64
c0983432a126f9419d7a6193799630e8
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateFileW
CreateThread
DeleteCriticalSection
DeleteFileW
EncodePointer
EnterCriticalSection
ExitProcess
ExitThread
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableA
GetFileAttributesExW
GetFileInformationByHandle
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryA
GetSystemTimeAsFileTime
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
LoadLibraryW
MoveFileExA
MultiByteToWideChar
PeekNamedPipe
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SleepEx
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
VerSetConditionMask
VerifyVersionInfoW
WaitForMultipleObjects
WaitForSingleObjectEx
WideCharToMultiByte
WriteConsoleW
WriteFile
gdi32
BitBlt
DeleteEnhMetaFile
DrawEscape
EnumObjects
GetTextExtentExPointA
SelectObject
user32
CreateWindowExW
SetWindowTextA
ws2_32
WSACleanup
WSACloseEvent
WSACreateEvent
WSAEnumNetworkEvents
WSAEventSelect
WSAGetLastError
WSAIoctl
WSAResetEvent
WSASetLastError
WSAStartup
WSAWaitForMultipleEvents
__WSAFDIsSet
accept
bind
closesocket
connect
freeaddrinfo
getaddrinfo
gethostname
getpeername
getsockname
getsockopt
htonl
htons
inet_ntop
inet_pton
ioctlsocket
listen
ntohs
recv
recvfrom
select
send
sendto
setsockopt
socket
wldap32
ord301
ord22
ord32
ord26
ord30
ord35
ord143
ord200
ord41
ord33
ord27
ord50
ord211
ord60
ord46
ord79
advapi32
CryptAcquireContextA
CryptCreateHash
CryptDestroyHash
CryptDestroyKey
CryptEncrypt
CryptGetHashParam
CryptHashData
CryptImportKey
CryptReleaseContext
bcrypt
BCryptGenRandom
Sections
.text Size: 1.1MB - Virtual size: 1.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 5KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 110KB - Virtual size: 110KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gehcont Size: 512B - Virtual size: 88B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ