fun[.]exe | Triage™

General

Target
fun.exe
Size 5.2MB
Sample240609-atzz2sbe86
SHA256 b8d68331ed7c3755ea9d9d0c84723e9baa992319f7a90675086240e9efdbaac8
MD5 b7bba7a1e2d48566e628378c0b013d11
SHA1 588524cd7f697503b50d91c4e6f05a7fc7369157
SHA512 8a8cb7806f904f8b0e75f7c8f95e6a4ff31497a03ddc35c8fdc529b632be665b086643a15c909c960293351c69fa9d2515c5a5661d068e4a1d9e544f720b0898
SSDEEP 98304:CnZ8pwZhhSh2uW5MI06O7/Xuy/+7F+7cETAvdUkAD5qU:CnZCwZhYEL2V6c/f/+ScEEFUhDc
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

pyinstaller

Malware Config

Signatures

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
sample	pyinstaller

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
fun.exe

File Explorer

fun.exe

.exe 5.2MB
fun.pyc

488B

fun.exe

IMPHASH bae3d3e8262d7ce7e9ee69cc1b630d3a
SHA256 b8d68331ed7c3755ea9d9d0c84723e9baa992319f7a90675086240e9efdbaac8
MD5 b7bba7a1e2d48566e628378c0b013d11
SHA1 588524cd7f697503b50d91c4e6f05a7fc7369157
SHA512 8a8cb7806f904f8b0e75f7c8f95e6a4ff31497a03ddc35c8fdc529b632be665b086643a15c909c960293351c69fa9d2515c5a5661d068e4a1d9e544f720b0898
SSDEEP 98304:CnZ8pwZhhSh2uW5MI06O7/Xuy/+7F+7cETAvdUkAD5qU:CnZCwZhYEL2V6c/f/+ScEEFUhDc
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x64 arch:x64

Detects Pyinstaller

pyinstaller
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

2

Major OS version

5

Entry point

47136

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA 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_LARGE_ADDRESS_AWARE

PDB paths

user32

GetWindowThreadProcessId ShowWindow

kernel32

GetModuleFileNameW CreateSymbolicLinkW GetProcAddress GetCommandLineW GetEnvironmentVariableW SetEnvironmentVariableW ExpandEnvironmentStringsW CreateDirectoryW GetTempPathW WaitForSingleObject Sleep GetExitCodeProcess CreateProcessW SetDllDirectoryW FreeLibrary LoadLibraryExW SetConsoleCtrlHandler FindClose FindFirstFileExW CloseHandle GetCurrentProcess GetCurrentProcessId LocalFree FormatMessageW MultiByteToWideChar WideCharToMultiByte GetConsoleWindow HeapSize GetLastError WriteConsoleW SetEndOfFile GetStartupInfoW TlsSetValue RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind UnhandledExceptionFilter SetUnhandledExceptionFilter TerminateProcess IsProcessorFeaturePresent QueryPerformanceCounter GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead IsDebuggerPresent GetModuleHandleW RtlUnwindEx SetLastError EnterCriticalSection LeaveCriticalSection DeleteCriticalSection InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsFree EncodePointer RaiseException RtlPcToFileHeader GetCommandLineA CreateFileW GetDriveTypeW GetFileInformationByHandle GetFileType PeekNamedPipe SystemTimeToTzSpecificLocalTime FileTimeToSystemTime GetFullPathNameW RemoveDirectoryW FindNextFileW SetStdHandle DeleteFileW ReadFile GetStdHandle WriteFile ExitProcess GetModuleHandleExW HeapFree GetConsoleMode ReadConsoleW SetFilePointerEx GetConsoleOutputCP GetFileSizeEx HeapAlloc FlsAlloc FlsGetValue FlsSetValue FlsFree CompareStringW LCMapStringW GetCurrentDirectoryW FlushFileBuffers HeapReAlloc GetFileAttributesExW GetStringTypeW IsValidCodePage GetACP GetOEMCP GetCPInfo GetEnvironmentStringsW FreeEnvironmentStringsW GetProcessHeap GetTimeZoneInformation

advapi32

ConvertSidToStringSidW GetTokenInformation OpenProcessToken ConvertStringSecurityDescriptorToSecurityDescriptorW

Name

.text

Size

172KB

Virtual Size

171KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

75KB

Virtual Size

74KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

12KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

9KB

Virtual Size

8KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

_RDATA

Size

512B

Virtual Size

500B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

60KB

Virtual Size

59KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

2KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

fun.exe

user32

kernel32

advapi32

generic

fun.pyc