2024-06-03_72a345620bdc2aadeef6aed0a7ef388c_ryuk

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General

Target
2024-06-03_72a345620bdc2aadeef6aed0a7ef388c_ryuk
Size 1.9MB
Sample240603-te4t8sbf4v
SHA256 e7285e9d38878bb724b8f2c0f985136852395e536759a5124e1bc02b38d4ef7c
MD5 72a345620bdc2aadeef6aed0a7ef388c
SHA1 893075bfbf5dfc5d021f11eb99fa779f27576b0d
SHA512 a63f51c042b4ba3296d89b738864abce17cc6f4ac420cbb8e060beb042bc1ccd204b129154208956eb9c0560cbe45b32dc0ee34eb1e1d512ea08de84b1020fba
SSDEEP 24576:678r8FfC3R32nUnCdAaKu++nO7MdIuwe3zfIe7xmvH/:6/fQR37CGaPaMdFrIe78vH/
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-06-03_72a345620bdc2aadeef6aed0a7ef388c_ryuk

File Explorer

2024-06-03_72a345620bdc2aadeef6aed0a7ef388c_ryuk

.exe 1.9MB

2024-06-03_72a345620bdc2aadeef6aed0a7ef388c_ryuk

IMPHASH d3d4ea1b3762a0549b8df20b778a8218
SHA256 e7285e9d38878bb724b8f2c0f985136852395e536759a5124e1bc02b38d4ef7c
MD5 72a345620bdc2aadeef6aed0a7ef388c
SHA1 893075bfbf5dfc5d021f11eb99fa779f27576b0d
SHA512 a63f51c042b4ba3296d89b738864abce17cc6f4ac420cbb8e060beb042bc1ccd204b129154208956eb9c0560cbe45b32dc0ee34eb1e1d512ea08de84b1020fba
SSDEEP 24576:678r8FfC3R32nUnCdAaKu++nO7MdIuwe3zfIe7xmvH/:6/fQR37CGaPaMdFrIe78vH/
MD5 SHA1 SHA512 SSDEEP

windows:10 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

420064

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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

C:\b\s\w\ir\cache\builder\src\out\Release_x64\chrome_pwa_launcher.exe.pdb

advapi32

CreateProcessAsUserW RegCloseKey RegCreateKeyExW RegOpenKeyExW RegQueryValueExW RegSetValueExW

kernel32

AcquireSRWLockExclusive AssignProcessToJobObject CloseHandle CompareStringW CreateEventW CreateFileW CreateProcessW CreateThread DeleteCriticalSection DeleteFileW DeleteProcThreadAttributeList EncodePointer EnterCriticalSection EnumSystemLocalesW ExitProcess ExitThread ExpandEnvironmentStringsW FindClose FindFirstFileExW FindNextFileW FlsAlloc FlsFree FlsGetValue FlsSetValue FlushFileBuffers FormatMessageW FreeEnvironmentStringsW FreeLibrary FreeLibraryAndExitThread GetACP GetCPInfo GetCommandLineA GetCommandLineW GetConsoleMode GetConsoleOutputCP GetCurrentDirectoryW GetCurrentProcess GetCurrentProcessId GetCurrentThread GetCurrentThreadId GetDateFormatW GetDriveTypeW GetEnvironmentStringsW GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileInformationByHandle GetFileSizeEx GetFileType GetFullPathNameW GetLastError GetLocalTime GetLocaleInfoW GetModuleFileNameW GetModuleHandleA GetModuleHandleExW GetModuleHandleW GetNativeSystemInfo GetOEMCP GetProcAddress GetProcessHeap GetProcessId GetProductInfo GetStartupInfoW GetStdHandle GetStringTypeW GetSystemDirectoryW GetSystemInfo GetSystemTimeAsFileTime GetTempPathW GetThreadPriority GetTickCount GetTimeFormatW GetTimeZoneInformation GetUserDefaultLCID GetVersionExW GetWindowsDirectoryW InitOnceExecuteOnce InitializeCriticalSectionAndSpinCount InitializeProcThreadAttributeList InitializeSListHead IsDebuggerPresent IsProcessorFeaturePresent IsValidCodePage IsValidLocale IsWow64Process LCMapStringW LeaveCriticalSection LoadLibraryExA LoadLibraryExW LoadLibraryW LocalFree MultiByteToWideChar OutputDebugStringA QueryPerformanceCounter QueryPerformanceFrequency QueryThreadCycleTime RaiseException ReadConsoleW ReadFile ReleaseSRWLockExclusive RtlCaptureContext RtlCaptureStackBackTrace RtlLookupFunctionEntry RtlPcToFileHeader RtlUnwind RtlUnwindEx RtlVirtualUnwind SetEndOfFile SetEnvironmentVariableW SetFilePointerEx SetHandleInformation SetLastError SetStdHandle SetThreadInformation SetThreadPriority SetUnhandledExceptionFilter Sleep SleepConditionVariableSRW SwitchToThread TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue TryAcquireSRWLockExclusive UnhandledExceptionFilter UnregisterWaitEx UpdateProcThreadAttribute VirtualAlloc VirtualFree VirtualProtect VirtualQuery WaitForSingleObject WakeAllConditionVariable WakeConditionVariable WideCharToMultiByte WriteConsoleW WriteFile lstrcmpiW lstrlenA

winmm

timeGetTime

userenv

CreateEnvironmentBlock DestroyEnvironmentBlock

user32

AllowSetForegroundWindow GetActiveWindow

shell32

CommandLineToArgvW SHGetFolderPathW SHGetKnownFolderPath ShellExecuteExW

ole32

CoTaskMemFree

ntdll

NtClose NtOpenKeyEx NtQueryValueKey RtlFormatCurrentUserKeyPath RtlFreeUnicodeString RtlInitUnicodeString

Name

.text

Size

792KB

Virtual Size

792KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

177KB

Virtual Size

176KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

58KB

Virtual Size

95KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

30KB

Virtual Size

29KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.gxfg

Size

11KB

Virtual Size

10KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.retplne

Size

512B

Virtual Size

140B

Characteristics

Name

.tls

Size

512B

Virtual Size

362B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

LZMADEC

Size

4KB

Virtual Size

4KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

_RDATA

Size

512B

Virtual Size

500B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

266KB

Virtual Size

265KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

572KB

Virtual Size

576KB

Characteristics

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

File Explorer

2024-06-03_72a345620bdc2aadeef6aed0a7ef388c_ryuk

advapi32

kernel32

winmm

userenv

user32

shell32

ole32

ntdll

generic