2025-11-11_b260254b5f12dd88f7c6032ad4fff38a_njrat_ryuk

General

Target
2025-11-11_b260254b5f12dd88f7c6032ad4fff38a_njrat_ryuk
Size 213KB
Sample251111-nfenvatpgn
SHA256 3e69a2dec173369677126163772d46575e9961794df9a1b2b5d2d97edb9b2539
MD5 b260254b5f12dd88f7c6032ad4fff38a
SHA1 b23b19c57ecdca02db2e63f42ab6741eb2bbd5d5
SHA512 466f9ddc880cc8be54f8a708a8827d8e1fbd785728417b0d042e0459d89f200bf6cf6da7886f30e811a63621659faccd90cea4ef775f640dc81afa14d272181d
SSDEEP 3072:+Ox8sc7Lzr/W2X3hMrP3WeGzZarDP0VEjzrQ9touP:n61Tr/W2HarP29UQYI
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2025-11-11_b260254b5f12dd88f7c6032ad4fff38a_njrat_ryuk

File Explorer

2025-11-11_b260254b5f12dd88f7c6032ad4fff38a_njrat_ryuk

.exe 213KB

2025-11-11_b260254b5f12dd88f7c6032ad4fff38a_njrat_ryuk

IMPHASH 3d84250cdbe08a9921b4fb008881914b
SHA256 3e69a2dec173369677126163772d46575e9961794df9a1b2b5d2d97edb9b2539
MD5 b260254b5f12dd88f7c6032ad4fff38a
SHA1 b23b19c57ecdca02db2e63f42ab6741eb2bbd5d5
SHA512 466f9ddc880cc8be54f8a708a8827d8e1fbd785728417b0d042e0459d89f200bf6cf6da7886f30e811a63621659faccd90cea4ef775f640dc81afa14d272181d
SSDEEP 3072:+Ox8sc7Lzr/W2X3hMrP3WeGzZarDP0VEjzrQ9touP:n61Tr/W2HarP29UQYI
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

2

Major OS version

5

Entry point

34468

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

kernel32

OpenProcess CreateToolhelp32Snapshot Sleep GetLastError Process32NextW GetCurrentThread LoadLibraryA GlobalAlloc DeleteFileW Process32FirstW GetModuleHandleA CloseHandle HeapAlloc GetWindowsDirectoryW GetProcAddress VirtualAllocEx LocalFree GetProcessHeap FreeLibrary CreateRemoteThread VirtualFreeEx GetVersionExW CreateFileW GetModuleFileNameW GetCurrentProcess GetCommandLineW SetLastError HeapFree GlobalFree WriteConsoleW SetFilePointerEx HeapReAlloc HeapSize RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind UnhandledExceptionFilter SetUnhandledExceptionFilter TerminateProcess IsProcessorFeaturePresent QueryPerformanceCounter GetCurrentProcessId GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead IsDebuggerPresent GetStartupInfoW GetModuleHandleW RtlUnwindEx RaiseException InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree LoadLibraryExW EnterCriticalSection LeaveCriticalSection DeleteCriticalSection ExitProcess GetModuleHandleExW GetStdHandle WriteFile GetModuleFileNameA MultiByteToWideChar WideCharToMultiByte GetACP LCMapStringW GetFileType FindClose FindFirstFileExA FindNextFileA IsValidCodePage GetOEMCP GetCPInfo GetCommandLineA GetEnvironmentStringsW FreeEnvironmentStringsW SetStdHandle GetStringTypeW FlushFileBuffers GetConsoleCP GetConsoleMode WriteProcessMemory

advapi32

SystemFunction036 LookupPrivilegeValueW AdjustTokenPrivileges ImpersonateSelf OpenProcessToken OpenThreadToken LookupAccountSidW GetTokenInformation

shell32

CommandLineToArgvW ShellExecuteW ShellExecuteA

Name

.text

Size

88KB

Virtual Size

88KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

49KB

Virtual Size

49KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

47KB

Virtual Size

47KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

4KB

Virtual Size

4KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.gfids

Size

168B

Virtual Size

168B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

480B

Virtual Size

480B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

1KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

2025-11-11_b260254b5f12dd88f7c6032ad4fff38a_njrat_ryuk

kernel32

advapi32

shell32

generic