2024-06-08_d52559985b81c16905738bbb01b7bd76_ryuk

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General

Target
2024-06-08_d52559985b81c16905738bbb01b7bd76_ryuk
Size 1.6MB
Sample240608-le54asbf28
SHA256 6fa4a22f1cdfc13e3f5544d75dda5fc5ad24c3afd2c5eddfe975bf07fd28d654
MD5 d52559985b81c16905738bbb01b7bd76
SHA1 0a729e7e2cc9a80e67b08bc9997ebb68b4ce3083
SHA512 2960257642dd50bb359f3ba2100a3080e9a683aee11e24e4e334d87ae2d1660dc0ced67c588fb309ecf8de04b6d7479284cccefa73992bc287dcb290008ac8af
SSDEEP 49152:3cUBxFMRzEQA13MgL/q9uYKKOBJaO0FJYa:X6EQA9y9OKMJXi
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-06-08_d52559985b81c16905738bbb01b7bd76_ryuk

File Explorer

2024-06-08_d52559985b81c16905738bbb01b7bd76_ryuk

.exe 1.6MB

2024-06-08_d52559985b81c16905738bbb01b7bd76_ryuk

IMPHASH 140ff2ef9713229377b0108ca6c1aa4e
SHA256 6fa4a22f1cdfc13e3f5544d75dda5fc5ad24c3afd2c5eddfe975bf07fd28d654
MD5 d52559985b81c16905738bbb01b7bd76
SHA1 0a729e7e2cc9a80e67b08bc9997ebb68b4ce3083
SHA512 2960257642dd50bb359f3ba2100a3080e9a683aee11e24e4e334d87ae2d1660dc0ced67c588fb309ecf8de04b6d7479284cccefa73992bc287dcb290008ac8af
SSDEEP 49152:3cUBxFMRzEQA13MgL/q9uYKKOBJaO0FJYa:X6EQA9y9OKMJXi
MD5 SHA1 SHA512 SSDEEP

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

408800

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_proxy.exe.pdb

advapi32

CreateProcessAsUserW RegCloseKey RegOpenKeyExW RegQueryValueExW

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 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 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 lstrlenA

userenv

CreateEnvironmentBlock DestroyEnvironmentBlock

user32

AllowSetForegroundWindow GetActiveWindow

shell32

CommandLineToArgvW SHGetFolderPathW SHGetKnownFolderPath ShellExecuteExW

winmm

timeGetTime

ole32

CoTaskMemFree

Name

.text

Size

771KB

Virtual Size

771KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

166KB

Virtual Size

165KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

58KB

Virtual Size

93KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

29KB

Virtual Size

28KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.gxfg

Size

10KB

Virtual Size

9KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.retplne

Size

512B

Virtual Size

140B

Characteristics

Name

.tls

Size

512B

Virtual Size

369B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

_RDATA

Size

512B

Virtual Size

500B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

2KB

Virtual Size

2KB

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

2024-06-08_d52559985b81c16905738bbb01b7bd76_ryuk

advapi32

kernel32

userenv

user32

shell32

winmm

ole32

generic