2024-04-21_3e5d8b9c1f8c2c3f11151e59c3587634_ryuk

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General

Target

2024-04-21_3e5d8b9c1f8c2c3f11151e59c3587634_ryuk
Size

1.6MB
MD5

3e5d8b9c1f8c2c3f11151e59c3587634
SHA1

cc917817f3fd6c498aed96b735fc2f289975c5de
SHA256

de3c609228d276953d56d7535d9f59e97f071166d3ce31ffb35c612665431d77
SHA512

0d445bdf53cf2020fddb682b2c93b51120764e6dbadffa67997169f9aab6791d3eaf4751abba3bb624385e4a60e57fe96e73f35d35f7c47b28a289dfe8cbddb5
SSDEEP

49152:4jVKXh/0Z86VxMRdTCyEYpigekQ/qoLEw:4uh/0GhJENqo4w

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-21_3e5d8b9c1f8c2c3f11151e59c3587634_ryuk

Files

2024-04-21_3e5d8b9c1f8c2c3f11151e59c3587634_ryuk
.exe windows:5 windows x64 arch:x64

50bd648be8f13408d2128a48f4a7be01

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

pwahelper.exe.pdb

Imports

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

RoInitialize
RoUninitialize

kernel32

AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateEventW
CreateFileW
CreateThread
DeleteCriticalSection
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetLocalTime
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemInfo
GetSystemTimeAsFileTime
GetThreadId
GetThreadPriority
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetVersionExW
InitOnceExecuteOnce
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
MultiByteToWideChar
PostQueuedCompletionStatus
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
UnregisterWaitEx
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile

ole32

CoCreateInstance
CoInitializeEx
CoRegisterInitializeSpy
CoRevokeInitializeSpy
CoUninitialize

shell32

CommandLineToArgvW
ord680

winmm

timeGetTime

user32

PostMessageW

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 840KB - Virtual size: 840KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 145KB - Virtual size: 144KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 13KB - Virtual size: 44KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 28KB - Virtual size: 27KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 289B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 572KB - Virtual size: 576KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

50bd648be8f13408d2128a48f4a7be01

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

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

kernel32

ole32

shell32

winmm

user32

Exports

Exports

Sections

.text Size: 840KB - Virtual size: 840KB

.rdata Size: 145KB - Virtual size: 144KB

.data Size: 13KB - Virtual size: 44KB

.pdata Size: 28KB - Virtual size: 27KB

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

.tls Size: 512B - Virtual size: 289B

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 2KB - Virtual size: 1KB

.reloc Size: 572KB - Virtual size: 576KB

.text
Size: 840KB - Virtual size: 840KB

.rdata
Size: 145KB - Virtual size: 144KB

.data
Size: 13KB - Virtual size: 44KB

.pdata
Size: 28KB - Virtual size: 27KB

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

.tls
Size: 512B - Virtual size: 289B

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 2KB - Virtual size: 1KB

.reloc
Size: 572KB - Virtual size: 576KB