a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168

General

Target
a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168
Size 2.1MB
Sample240604-bd4hzaff5z
SHA256 a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168
MD5 3f1414acc122559e44c9760949639fa6
SHA1 b2e9d49489ded5b9ed2e77d273047381e21657b9
SHA512 eff86d7fb57e5644d10d5cf80d82db3c611563795334c863218aacae7e5c1bf2c1cf42e36fd63f276762df9d16da5b5888651da704f91ecee9f1d02093a882d3
SSDEEP 49152:IBJ0k1H8oajdVSBlwRh8QniHqyxLfNDNTHS:yGk1idXNCqyxLfvHS
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Signatures

Detects executables packed with unregistered version of .NET Reactor 1 IoCs

resource	yara_rule
sample	INDICATOR_EXE_Packed_DotNetReactor

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168

File Explorer

a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168

.exe 2.1MB

a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168

IMPHASH 12e12319f1029ec4f8fcbed7e82df162
SHA256 a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168
MD5 3f1414acc122559e44c9760949639fa6
SHA1 b2e9d49489ded5b9ed2e77d273047381e21657b9
SHA512 eff86d7fb57e5644d10d5cf80d82db3c611563795334c863218aacae7e5c1bf2c1cf42e36fd63f276762df9d16da5b5888651da704f91ecee9f1d02093a882d3
SSDEEP 49152:IBJ0k1H8oajdVSBlwRh8QniHqyxLfNDNTHS:yGk1idXNCqyxLfvHS
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x86 arch:x86

Detects executables packed with unregistered version of .NET Reactor
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

1

Major OS version

5

Entry point

128304

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

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_32BIT_MACHINE

PDB paths

D:\Projects\WinRAR\sfx\build\sfxrar32\Release\sfxrar.pdb

kernel32

GetLastError SetLastError FormatMessageW GetCurrentProcess DeviceIoControl SetFileTime CloseHandle CreateDirectoryW RemoveDirectoryW CreateFileW DeleteFileW CreateHardLinkW GetShortPathNameW GetLongPathNameW MoveFileW GetFileType GetStdHandle WriteFile ReadFile FlushFileBuffers SetEndOfFile SetFilePointer SetFileAttributesW GetFileAttributesW FindClose FindFirstFileW FindNextFileW InterlockedDecrement GetVersionExW GetCurrentDirectoryW GetFullPathNameW FoldStringW GetModuleFileNameW GetModuleHandleW FindResourceW FreeLibrary GetProcAddress GetCurrentProcessId ExitProcess SetThreadExecutionState Sleep LoadLibraryW GetSystemDirectoryW CompareStringW AllocConsole FreeConsole AttachConsole WriteConsoleW GetProcessAffinityMask CreateThread SetThreadPriority InitializeCriticalSection EnterCriticalSection LeaveCriticalSection DeleteCriticalSection SetEvent ResetEvent ReleaseSemaphore WaitForSingleObject CreateEventW CreateSemaphoreW GetSystemTime SystemTimeToTzSpecificLocalTime TzSpecificLocalTimeToSystemTime SystemTimeToFileTime FileTimeToLocalFileTime LocalFileTimeToFileTime FileTimeToSystemTime GetCPInfo IsDBCSLeadByte MultiByteToWideChar WideCharToMultiByte GlobalAlloc LockResource GlobalLock GlobalUnlock GlobalFree LoadResource SizeofResource SetCurrentDirectoryW GetExitCodeProcess GetLocalTime GetTickCount MapViewOfFile UnmapViewOfFile CreateFileMappingW OpenFileMappingW GetCommandLineW SetEnvironmentVariableW ExpandEnvironmentStringsW GetTempPathW MoveFileExW GetLocaleInfoW GetTimeFormatW GetDateFormatW GetNumberFormatW DecodePointer SetFilePointerEx GetConsoleMode GetConsoleCP HeapSize SetStdHandle GetProcessHeap FreeEnvironmentStringsW GetEnvironmentStringsW GetCommandLineA GetOEMCP RaiseException GetSystemInfo VirtualProtect VirtualQuery LoadLibraryExA IsProcessorFeaturePresent IsDebuggerPresent UnhandledExceptionFilter SetUnhandledExceptionFilter GetStartupInfoW QueryPerformanceCounter GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead TerminateProcess LocalFree RtlUnwind EncodePointer InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree LoadLibraryExW QueryPerformanceFrequency GetModuleHandleExW GetModuleFileNameA GetACP HeapFree HeapAlloc HeapReAlloc GetStringTypeW LCMapStringW FindFirstFileExA FindNextFileA IsValidCodePage

oleaut32

SysAllocString SysFreeString VariantClear

gdiplus

GdipAlloc GdipDisposeImage GdipCloneImage GdipCreateBitmapFromStream GdipCreateBitmapFromStreamICM GdipCreateHBITMAPFromBitmap GdiplusStartup GdiplusShutdown GdipFree

Name

.text

Size

199KB

Virtual Size

198KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

44KB

Virtual Size

43KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

4KB

Virtual Size

145KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.didat

Size

512B

Virtual Size

400B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

56KB

Virtual Size

55KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

9KB

Virtual Size

8KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168

kernel32

oleaut32

gdiplus

generic