2024-03-08_e8f754f0c6085f56e7c91f5fa0c7205d_ryuk

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General

Target

2024-03-08_e8f754f0c6085f56e7c91f5fa0c7205d_ryuk
Size

16.1MB
MD5

e8f754f0c6085f56e7c91f5fa0c7205d
SHA1

581370abb6a6b2fcf013417361c086b545fe5c4e
SHA256

824e234cc34fa3631b546b556213fab66a9cefc1b6ece857562788fc91105427
SHA512

098f2594e3c2259da1dbbca1749ccf686b6ee241eeef7ed4290bcadb94385cfa99ec8eaf743f5be6fc9e356829f680733329b5ba0964ec5fe17edd414dbef854
SSDEEP

98304:YwJaCWBwiPPt/iA1uQgYooNFwsbxlEbifTR3av1fUt5ZGQKwRptRvv/+rMWCR++z:YJiUy6rQvpUtbGQKg7eMWCm4

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-08_e8f754f0c6085f56e7c91f5fa0c7205d_ryuk

Files

2024-03-08_e8f754f0c6085f56e7c91f5fa0c7205d_ryuk
.exe windows:6 windows x64 arch:x64

98a54a0f41411eb61f997c8a8e316ee8

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

AcquireSRWLockExclusive
AcquireSRWLockShared
AddVectoredExceptionHandler
CancelIo
CancelIoEx
CloseHandle
CompareStringOrdinal
CompareStringW
ConnectNamedPipe
CopyFileExW
CreateDirectoryW
CreateEventW
CreateFileW
CreateIoCompletionPort
CreateMutexA
CreateNamedPipeW
CreateProcessW
CreateSemaphoreW
CreateThread
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteFileW
DeviceIoControl
DuplicateHandle
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExA
FindFirstFileW
FindNextFileA
FindNextFileW
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameExW
GetConsoleCP
GetConsoleMode
GetConsoleScreenBufferInfo
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDiskFreeSpaceExW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFileType
GetFinalPathNameByHandleW
GetFullPathNameW
GetLastError
GetLogicalDrives
GetLogicalProcessorInformation
GetModuleFileNameA
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetOverlappedResult
GetProcAddress
GetProcessHeap
GetProcessIoCounters
GetProcessTimes
GetQueuedCompletionStatusEx
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemFirmwareTable
GetSystemInfo
GetSystemTimeAsFileTime
GetSystemTimes
GetTickCount64
GetTimeZoneInformationForYear
GetVolumeInformationW
GetWindowsDirectoryW
GlobalMemoryStatusEx
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExA
LoadLibraryExW
LocalAlloc
LocalFree
MoveFileExW
MultiByteToWideChar
OpenProcess
PostQueuedCompletionStatus
Process32First
Process32Next
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadDirectoryChangesW
ReadFile
ReadFileEx
ReadProcessMemory
RegisterWaitForSingleObject
ReleaseMutex
ReleaseSRWLockExclusive
ReleaseSRWLockShared
ReleaseSemaphore
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetConsoleTextAttribute
SetCurrentDirectoryW
SetEnvironmentVariableA
SetFileCompletionNotificationModes
SetFilePointerEx
SetHandleInformation
SetLastError
SetNamedPipeHandleState
SetStdHandle
SetThreadStackGuarantee
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SleepEx
SwitchToThread
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
UnregisterWait
VirtualQueryEx
WaitForMultipleObjects
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
WriteFileEx
__C_specific_handler
lstrlenW

ws2_32

WSACleanup
WSAGetLastError
WSAIoctl
WSARecv
WSASend
WSASocketW
WSAStartup
bind
closesocket
connect
freeaddrinfo
getaddrinfo
getpeername
getsockname
getsockopt
ioctlsocket
recv
recvfrom
select
send
sendto
setsockopt
shutdown
socket

secur32

AcceptSecurityContext
AcquireCredentialsHandleA
AcquireCredentialsHandleW
ApplyControlToken
DecryptMessage
DeleteSecurityContext
EncryptMessage
FreeContextBuffer
FreeCredentialsHandle
InitializeSecurityContextW
LsaEnumerateLogonSessions
LsaFreeReturnBuffer
LsaGetLogonSessionData
QueryContextAttributesW
QuerySecurityPackageInfoW

crypt32

CertAddCertificateContextToStore
CertCloseStore
CertDuplicateCertificateChain
CertDuplicateCertificateContext
CertDuplicateStore
CertEnumCertificatesInStore
CertFreeCertificateChain
CertFreeCertificateContext
CertGetCertificateChain
CertGetCertificateContextProperty
CertGetEnhancedKeyUsage
CertOpenStore
CertVerifyCertificateChainPolicy
CertVerifyTimeValidity
CryptHashCertificate

advapi32

AllocateAndInitializeSid
CloseServiceHandle
ControlService
ConvertSidToStringSidW
ConvertStringSidToSidW
CopySid
FreeSid
GetLengthSid
GetTokenInformation
GetUserNameW
InitializeSecurityDescriptor
LookupAccountNameW
LookupAccountSidW
OpenProcessToken
OpenSCManagerW
OpenServiceW
QueryServiceStatusEx
RegCloseKey
RegEnumKeyExW
RegOpenKeyExW
RegQueryValueExW
RegisterServiceCtrlHandlerExW
SetEntriesInAclW
SetSecurityDescriptorDacl
SetServiceStatus
StartServiceCtrlDispatcherW
StartServiceW
SystemFunction036

bcrypt

BCryptGenRandom

ole32

CoCreateInstance
CoInitializeEx
CoInitializeSecurity
CoSetProxyBlanket
CoUninitialize

wtsapi32

WTSEnumerateProcessesA
WTSEnumerateSessionsExW
WTSFreeMemory
WTSFreeMemoryExW
WTSQuerySessionInformationA
WTSQuerySessionInformationW

netutils

NetApiBufferFree

samcli

NetUserEnum
NetUserGetInfo
NetUserGetLocalGroups

oleaut32

GetErrorInfo
SafeArrayAccessData
SafeArrayGetLBound
SafeArrayGetUBound
SafeArrayUnaccessData
SysAllocString
SysAllocStringLen
SysFreeString
SysStringLen
VariantClear

version

GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW

psapi

GetModuleFileNameExW
GetPerformanceInfo

shell32

CommandLineToArgvW

iphlpapi

FreeMibTable
GetAdaptersAddresses
GetIfEntry2
GetIfTable2

api-ms-win-power-base-l1-1-0

CallNtPowerInformation

pdh

PdhAddEnglishCounterW
PdhCloseQuery
PdhCollectQueryData
PdhGetFormattedCounterValue
PdhOpenQueryA
PdhRemoveCounter

ntdll

NtCancelIoFileEx
NtCreateFile
NtDeviceIoControlFile
NtQueryInformationProcess
NtQuerySystemInformation
NtReadFile
NtWriteFile
RtlGetVersion
RtlNtStatusToDosError

Sections

.text
Size: 11.1MB - Virtual size: 11.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 4.4MB - Virtual size: 4.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 16KB - Virtual size: 34KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 526KB - Virtual size: 526KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 40B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 128B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 92B

.tls
Size: 1024B - Virtual size: 913B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.voltbl
Size: 512B - Virtual size: 48B

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 17KB - Virtual size: 16KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 66KB - Virtual size: 66KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

98a54a0f41411eb61f997c8a8e316ee8

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

ws2_32

secur32

crypt32

advapi32

bcrypt

ole32

wtsapi32

netutils

samcli

oleaut32

version

psapi

shell32

iphlpapi

api-ms-win-power-base-l1-1-0

pdh

ntdll

Sections

.text Size: 11.1MB - Virtual size: 11.1MB

.rdata Size: 4.4MB - Virtual size: 4.4MB

.data Size: 16KB - Virtual size: 34KB

.pdata Size: 526KB - Virtual size: 526KB

.00cfg Size: 512B - Virtual size: 40B

.gfids Size: 512B - Virtual size: 128B

.retplne Size: 512B - Virtual size: 92B

.tls Size: 1024B - Virtual size: 913B

.voltbl Size: 512B - Virtual size: 48B

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 17KB - Virtual size: 16KB

.reloc Size: 66KB - Virtual size: 66KB

.text
Size: 11.1MB - Virtual size: 11.1MB

.rdata
Size: 4.4MB - Virtual size: 4.4MB

.data
Size: 16KB - Virtual size: 34KB

.pdata
Size: 526KB - Virtual size: 526KB

.00cfg
Size: 512B - Virtual size: 40B

.gfids
Size: 512B - Virtual size: 128B

.retplne
Size: 512B - Virtual size: 92B

.tls
Size: 1024B - Virtual size: 913B

.voltbl
Size: 512B - Virtual size: 48B

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 17KB - Virtual size: 16KB

.reloc
Size: 66KB - Virtual size: 66KB