2024-04-20_23fad8f39492c1b332475e9df5b7bec4_ryuk

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General

Target

2024-04-20_23fad8f39492c1b332475e9df5b7bec4_ryuk
Size

1.4MB
MD5

23fad8f39492c1b332475e9df5b7bec4
SHA1

c146a855e0afee05a9ba75b2acf304325b877807
SHA256

8a3639e5e23f6eaf3ea8798c05268f3c0cd31e4c39e5c618ce4496f8eaafa513
SHA512

0931679e3c814187701fe59b1cea0848868c9bb003b41ceae2df21f54a89002b73359b6c6f7efa0b5f0f8db487ad8cb1996290fb11f3fb40d43e486f9be2c294
SSDEEP

12288:uoU13FIjp8OPUJuX9SuHQmD3pdal+D8TIAhx+cVAkFdjFFeCKplNohMA+nk/dHjL:Um8OPUJuN5Hzld8+oTIAxAkFrWNcdH

Score

1^/10

Malware Config

Signatures

Files

2024-04-20_23fad8f39492c1b332475e9df5b7bec4_ryuk
.exe windows:5 windows x64 arch:x64

ac1df8270e5cb4a33bf9429eb2bac6fa

Code Sign

33:00:00:03:3e:63:3a:86:bf:41:73:d7:e0:00:00:00:00:03:3e
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

16/02/2023, 20:10

Not After

31/01/2024, 20:10

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08/07/2011, 20:59

Not After

08/07/2026, 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

60:02:72:a3:64:59:56:9f:60:e9:40:50:59:a4:c3:d0:a2:42:15:be:72:ca:fa:64:90:40:bd:5d:49:30:cc:c7
Signer

Actual PE Digest

60:02:72:a3:64:59:56:9f:60:e9:40:50:59:a4:c3:d0:a2:42:15:be:72:ca:fa:64:90:40:bd:5d:49:30:cc:c7

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

D:\a\_work\e\src\out\Release_x64\notification_helper.exe.pdb

Imports

api-ms-win-core-winrt-error-l1-1-0

RoOriginateError

dbghelp

SymCleanup
SymFromAddr
SymGetLineFromAddr64
SymGetSearchPathW
SymInitialize
SymSetOptions
SymSetSearchPathW

kernel32

AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateDirectoryW
CreateEventW
CreateFileW
CreateNamedPipeW
CreateThread
DecodePointer
DeleteCriticalSection
DeleteFileW
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FlushViewOfFile
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameExW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetFileAttributesW
GetFileInformationByHandle
GetFileSizeEx
GetFileTime
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetLogicalProcessorInformation
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProcessId
GetProcessTimes
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadId
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetUserDefaultLangID
GetVersionExW
GetWindowsDirectoryW
HeapSetInformation
InitOnceExecuteOnce
InitializeConditionVariable
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeSListHead
InitializeSRWLock
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
K32QueryWorkingSetEx
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
LockFileEx
MapViewOfFile
MoveFileW
MultiByteToWideChar
OpenProcess
OutputDebugStringA
OutputDebugStringW
PeekNamedPipe
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RemoveDirectoryW
ReplaceFileW
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetCurrentDirectoryW
SetEndOfFile
SetEnvironmentVariableW
SetErrorMode
SetEvent
SetFileAttributesW
SetFileInformationByHandle
SetFilePointerEx
SetLastError
SetNamedPipeHandleState
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SleepEx
SwitchToThread
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TransactNamedPipe
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
UnlockFileEx
UnmapViewOfFile
UnregisterWaitEx
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WaitNamedPipeW
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpW
lstrcmpiW
lstrlenA

api-ms-win-core-winrt-l1-1-0

RoGetActivationFactory

api-ms-win-core-winrt-string-l1-1-0

WindowsCreateString
WindowsDeleteString

ntdll

NtClose
NtOpenKeyEx
NtQueryValueKey
RtlFormatCurrentUserKeyPath
RtlFreeUnicodeString
RtlInitUnicodeString

Exports

Exports

GetHandleVerifier
OQS_CPU_has_extension
OQS_KEM_alg_count
OQS_KEM_alg_identifier
OQS_KEM_alg_is_enabled
OQS_KEM_decaps
OQS_KEM_encaps
OQS_KEM_free
OQS_KEM_keypair
OQS_KEM_kyber_768_decaps
OQS_KEM_kyber_768_encaps
OQS_KEM_kyber_768_keypair
OQS_KEM_new
OQS_MEM_cleanse
OQS_MEM_insecure_free
OQS_MEM_secure_bcmp
OQS_MEM_secure_free
OQS_SIG_alg_count
OQS_SIG_alg_identifier
OQS_SIG_alg_is_enabled
OQS_SIG_free
OQS_SIG_keypair
OQS_SIG_new
OQS_SIG_sign
OQS_SIG_verify
OQS_init
OQS_randombytes
OQS_randombytes_custom_algorithm
OQS_randombytes_nist_kat_init_256bit
OQS_randombytes_switch_algorithm
OQS_version

Sections

.text
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 201KB - Virtual size: 200KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 65KB - Virtual size: 120KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 43KB - Virtual size: 43KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 48B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 11KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 140B

.tls
Size: 512B - Virtual size: 433B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

CPADinfo
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

malloc_h
Size: 512B - Virtual size: 226B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ac1df8270e5cb4a33bf9429eb2bac6fa

Code Sign

33:00:00:03:3e:63:3a:86:bf:41:73:d7:e0:00:00:00:00:03:3eCertificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

60:02:72:a3:64:59:56:9f:60:e9:40:50:59:a4:c3:d0:a2:42:15:be:72:ca:fa:64:90:40:bd:5d:49:30:cc:c7Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

api-ms-win-core-winrt-error-l1-1-0

dbghelp

kernel32

api-ms-win-core-winrt-l1-1-0

api-ms-win-core-winrt-string-l1-1-0

ntdll

Exports

Exports

Sections

.text Size: 1.1MB - Virtual size: 1.1MB

.rdata Size: 201KB - Virtual size: 200KB

.data Size: 65KB - Virtual size: 120KB

.pdata Size: 43KB - Virtual size: 43KB

.00cfg Size: 512B - Virtual size: 48B

.gxfg Size: 11KB - Virtual size: 10KB

.retplne Size: 512B - Virtual size: 140B

.tls Size: 512B - Virtual size: 433B

CPADinfo Size: 512B - Virtual size: 56B

_RDATA Size: 512B - Virtual size: 348B

malloc_h Size: 512B - Virtual size: 226B

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 6KB - Virtual size: 6KB

33:00:00:03:3e:63:3a:86:bf:41:73:d7:e0:00:00:00:00:03:3e
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

60:02:72:a3:64:59:56:9f:60:e9:40:50:59:a4:c3:d0:a2:42:15:be:72:ca:fa:64:90:40:bd:5d:49:30:cc:c7
Signer

.text
Size: 1.1MB - Virtual size: 1.1MB

.rdata
Size: 201KB - Virtual size: 200KB

.data
Size: 65KB - Virtual size: 120KB

.pdata
Size: 43KB - Virtual size: 43KB

.00cfg
Size: 512B - Virtual size: 48B

.gxfg
Size: 11KB - Virtual size: 10KB

.retplne
Size: 512B - Virtual size: 140B

.tls
Size: 512B - Virtual size: 433B

CPADinfo
Size: 512B - Virtual size: 56B

_RDATA
Size: 512B - Virtual size: 348B

malloc_h
Size: 512B - Virtual size: 226B

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 6KB - Virtual size: 6KB