nvrla.pdb
Static task
static1
Behavioral task
behavioral1
Sample
2024-08-28_b16d20b6cb8078006cd4177dd123f2f4_ryuk.exe
Resource
win7-20240708-en
General
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Target
2024-08-28_b16d20b6cb8078006cd4177dd123f2f4_ryuk
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Size
2.0MB
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MD5
b16d20b6cb8078006cd4177dd123f2f4
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SHA1
95bc78357fe6d14cd66bb1cd312474073bc706fb
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SHA256
ab7e7532f82019f258c9b00a864ccaa27034ba0029275599c1c2e7af283de800
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SHA512
45233a0bd974e73d23b28a89ae7855c56c4e9c9271867a7d620e2379988dd6856616ad38b501804f6356483ea1a496402f8e537f8153ca8a76505388e84076c4
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SSDEEP
24576:BWqc5LfAWjkhhBFqB9dKqRiq/3RqgGjFCrUlfFr/S3B39tLcmRNU7NnmkUv+KzFt:Bzc5LfADhgdmGRSjFCIVFrmB33LySvN
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-08-28_b16d20b6cb8078006cd4177dd123f2f4_ryuk
Files
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2024-08-28_b16d20b6cb8078006cd4177dd123f2f4_ryuk.exe windows:6 windows x64 arch:x64
cd595429d2c4acd2f7ab4a04cc16c17f
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
PDB Paths
Imports
kernel32
GetCurrentProcessId
VerifyVersionInfoW
QueryPerformanceCounter
AllocConsole
CreateFileW
CreateDirectoryW
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
FreeLibrary
GetProcAddress
GetFileAttributesW
GetFullPathNameW
SetLastError
GetSystemDirectoryW
GetModuleFileNameW
GetModuleHandleW
LoadLibraryExW
VerSetConditionMask
WriteConsoleW
HeapSize
DeleteFileW
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineA
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
GetTimeZoneInformation
GetProcessHeap
GetCurrentDirectoryW
SetEndOfFile
SetStdHandle
GetFileAttributesExW
FlushFileBuffers
EnumSystemLocalesW
GetUserDefaultLCID
LocalFree
ResetEvent
CloseHandle
SetEvent
AttachConsole
GetLastError
CreateEventW
LocalAlloc
WaitForSingleObject
WaitForMultipleObjects
SetConsoleTitleA
GetCommandLineW
SetDefaultDllDirectories
GetModuleFileNameA
Sleep
FileTimeToSystemTime
OutputDebugStringA
IsValidLocale
GetTimeFormatW
GetDateFormatW
GetConsoleOutputCP
ReadConsoleW
GetConsoleMode
WriteFile
HeapReAlloc
HeapFree
HeapAlloc
SetFilePointerEx
ExitThread
SystemTimeToTzSpecificLocalTime
GetFileInformationByHandle
GetDriveTypeW
SetConsoleCtrlHandler
GetModuleHandleExW
ExitProcess
RtlUnwindEx
RtlPcToFileHeader
LoadLibraryW
UnregisterWaitEx
QueryDepthSList
InterlockedFlushSList
InterlockedPushEntrySList
InterlockedPopEntrySList
ReleaseSemaphore
VirtualFree
VirtualAlloc
GetVersionExW
FreeLibraryAndExitThread
GetThreadTimes
UnregisterWait
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
FormatMessageW
GetTickCount
InitializeCriticalSectionEx
DeleteCriticalSection
QueryPerformanceFrequency
GetSystemDirectoryA
GetModuleHandleA
LoadLibraryA
MultiByteToWideChar
WideCharToMultiByte
MoveFileExA
WaitForSingleObjectEx
GetEnvironmentVariableA
GetStdHandle
GetFileType
ReadFile
PeekNamedPipe
SleepEx
CreateFileA
GetFileSizeEx
RaiseException
GetSystemInfo
VirtualProtect
VirtualQuery
LoadLibraryExA
TryEnterCriticalSection
GetCurrentThreadId
DuplicateHandle
GetCurrentProcess
GetCurrentThread
GetExitCodeThread
GetStringTypeW
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
EncodePointer
DecodePointer
CompareStringW
LCMapStringW
GetLocaleInfoW
GetCPInfo
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
InitializeSListHead
CreateTimerQueue
SignalObjectAndWait
SwitchToThread
CreateThread
SetThreadPriority
GetThreadPriority
GetLogicalProcessorInformation
CreateTimerQueueTimer
ChangeTimerQueueTimer
DeleteTimerQueueTimer
GetNumaHighestNodeNumber
GetProcessAffinityMask
SetThreadAffinityMask
RegisterWaitForSingleObject
ole32
CoTaskMemFree
normaliz
IdnToAscii
wldap32
ord143
ord46
ord211
ord60
ord45
ord50
ord41
ord22
ord26
ord27
ord32
ord33
ord35
ord79
ord30
ord200
ord301
ord217
crypt32
CertGetCertificateChain
CertFreeCertificateChainEngine
CertCreateCertificateChainEngine
CryptQueryObject
CertGetNameStringA
CertFindExtension
CertAddCertificateContextToStore
CryptDecodeObjectEx
PFXImportCertStore
CryptStringToBinaryA
CertFreeCertificateContext
CertFindCertificateInStore
CertEnumCertificatesInStore
CertCloseStore
CertOpenStore
CertFreeCertificateChain
ws2_32
WSAStartup
WSASetLastError
ntohs
WSAGetLastError
closesocket
WSAWaitForMultipleEvents
WSACleanup
WSAResetEvent
WSAEventSelect
WSAEnumNetworkEvents
WSACreateEvent
WSACloseEvent
send
getsockopt
setsockopt
WSAIoctl
htons
socket
__WSAFDIsSet
select
accept
bind
connect
getsockname
htonl
listen
recv
getaddrinfo
freeaddrinfo
recvfrom
sendto
ioctlsocket
getpeername
gethostname
Sections
.text Size: 1.0MB - Virtual size: 1.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 317KB - Virtual size: 316KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 19KB - Virtual size: 51KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 51KB - Virtual size: 51KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.didat Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 9B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 576KB - Virtual size: 580KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE