nexo[.]exe | Triage™

General

Target
nexo.exe
Size 22.1MB
Sample261110-wflfdshe47
SHA256 9397b824cca42567c58ba7eaf905c844b9b96d49fb5c0b48dbf9b1795a553c27
MD5 7e54348f69316c23f32412624a3c23ca
SHA1 ebb883ae979a973f1e9c45b44e800f42ff33c684
SHA512 8e5430cd4a0114c487ab1082f9d8fdb6c777a99906d38bc651592a1ef75a97d6d9169f3ba0806e3308a4e333fb2c2429da604b0cd86208f9390401d09a9ed9a6
SSDEEP 393216:yhC+xYfRJEc0WgznLbb8fe2htrFAmXxEk3Wa2TBBYO9snQnTTi0xDD:yhCNfRgLMGy9tvgBYO9RDD
TLSH
T1CC37232BA3ED01ACC0B7C07D89475507E772344663A1EADB46A085661FB7BE01F7A731
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
nexo.exe

File Explorer

nexo.exe

.exe 22.1MB

nexo.exe

IMPHASH 96c988111beae19d6f75f54b89a75585
SHA256 9397b824cca42567c58ba7eaf905c844b9b96d49fb5c0b48dbf9b1795a553c27
MD5 7e54348f69316c23f32412624a3c23ca
SHA1 ebb883ae979a973f1e9c45b44e800f42ff33c684
SHA512 8e5430cd4a0114c487ab1082f9d8fdb6c777a99906d38bc651592a1ef75a97d6d9169f3ba0806e3308a4e333fb2c2429da604b0cd86208f9390401d09a9ed9a6
SSDEEP 393216:yhC+xYfRJEc0WgznLbb8fe2htrFAmXxEk3Wa2TBBYO9snQnTTi0xDD:yhCNfRgLMGy9tvgBYO9RDD
TLSH
T1CC37232BA3ED01ACC0B7C07D89475507E772344663A1EADB46A085661FB7BE01F7A731
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

0

Major OS version

6

Entry point

2118036

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

ntdll

RtlLookupFunctionEntry RtlVirtualUnwind RtlPcToFileHeader RtlInitUnicodeString RtlUnwindEx RtlCaptureContext RtlUnwind

kernel32

GetFullPathNameA WriteConsoleW GetLastError ExitProcess GetModuleFileNameA GetModuleHandleW GetProcAddress GetFileAttributesA WideCharToMultiByte CreateToolhelp32Snapshot Process32FirstW Process32NextW CreateFileW DeleteFileW GetDriveTypeW GetLogicalDriveStringsW GetTempFileNameW SetFileAttributesW WriteFile GetTempPathW WaitForSingleObject FindResourceExW FreeLibrary GetModuleFileNameW LoadLibraryExW LoadResource LockResource SizeofResource EnumResourceNamesW QueryFullProcessImageNameW EnumResourceLanguagesW BeginUpdateResourceW UpdateResourceW EndUpdateResourceW GetVolumeInformationW GlobalMemoryStatusEx LocalFree GetComputerNameW LoadLibraryW GlobalAlloc GlobalUnlock GlobalLock GlobalFree FindClose FindFirstFileW FindNextFileW GetFileAttributesExW GetCurrentThreadId GetSystemTime SetUnhandledExceptionFilter ResetEvent CreateEventA ExitThread GetTickCount64 GetSystemInfo GetTimeZoneInformation GetLocalTime GetEnvironmentVariableW CreateDirectoryW GetFileAttributesW GetFileSizeEx GetLongPathNameW QueryDosDeviceW ReadFile RemoveDirectoryW CloseHandle SetEvent CreateMutexA OpenEventA GetCurrentProcess GetCurrentProcessId CreateThread TerminateThread CreateFileMappingW MapViewOfFile UnmapViewOfFile MoveFileExW MultiByteToWideChar SetDllDirectoryW ExpandEnvironmentStringsW CreateFileA GetDiskFreeSpaceExA GetDriveTypeA GetLogicalDrives SetFilePointerEx GetTempPathA SetErrorMode CreatePipe TerminateProcess CreateProcessA CreateProcessW OpenProcess MoveFileW FileTimeToSystemTime K32GetProcessMemoryInfo FlushFileBuffers GetTickCount QueryPerformanceCounter FormatMessageA GetSystemTimeAsFileTime SystemTimeToFileTime GetProcessHeap GetFileSize LockFileEx CreateFileMappingA UnlockFile HeapDestroy HeapCompact HeapAlloc HeapReAlloc DeleteFileA GetVersionExA WaitForSingleObjectEx LoadLibraryA FlushViewOfFile OutputDebugStringW GetDiskFreeSpaceA FormatMessageW Sleep HeapSize HeapValidate GetVersionExW CreateMutexW UnlockFileEx SetEndOfFile SetEnvironmentVariableW SetFilePointer LockFile OutputDebugStringA GetDiskFreeSpaceW GetFullPathNameW HeapFree HeapCreate AreFileApisANSI RaiseException InitializeCriticalSection EnterCriticalSection LeaveCriticalSection TryEnterCriticalSection DeleteCriticalSection ConnectNamedPipe PeekNamedPipe CreateNamedPipeW FreeEnvironmentStringsW GetEnvironmentStringsW GetCommandLineW GetCommandLineA GetOEMCP GetACP IsValidCodePage ReadConsoleW GetConsoleMode GetConsoleOutputCP ReleaseSRWLockExclusive AcquireSRWLockExclusive TryAcquireSRWLockExclusive GetExitCodeThread InitOnceBeginInitialize InitOnceComplete QueryPerformanceFrequency SleepConditionVariableSRW WakeConditionVariable WakeAllConditionVariable GetLocaleInfoEx FindFirstFileExW GetFinalPathNameByHandleW GetFileInformationByHandleEx EncodePointer DecodePointer InitializeCriticalSectionEx CompareStringEx GetCPInfo LCMapStringEx GetStringTypeW UnhandledExceptionFilter IsProcessorFeaturePresent InitializeSListHead IsDebuggerPresent GetStartupInfoW SetLastError InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree FreeLibraryAndExitThread GetModuleHandleExW GetStdHandle GetFileType FlsAlloc FlsGetValue FlsSetValue FlsFree VirtualProtect CompareStringW LCMapStringW GetLocaleInfoW IsValidLocale GetUserDefaultLCID EnumSystemLocalesW SetStdHandle

Name

.text

Size

2.3MB

Virtual Size

2.3MB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

757KB

Virtual Size

756KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

26KB

Virtual Size

101KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

76KB

Virtual Size

76KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

1KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

6KB

Virtual Size

6KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

nexo.exe

ntdll

kernel32

generic