AstroClient[.]exe | Triage™

General

Target
AstroClient.exe
Size 18.9MB
Sample261026-za4asswt4k
SHA256 6035fd1a6fcced8b12a087c677ce02c7fc8517dc006e577694b5280409a68492
MD5 7b68fa1a03cbe4531a0aaab5a822f841
SHA1 3d22d764fe4d739e33174dc363804c6fc0bf1f7b
SHA512 3b70c4752cea76d8cb53146709a230301989ea9f4571f9248e9fdca6ca65da1e173854235563ff7fe76b1d02f6318b6bb3fe5df2bf8dc829953a82610093b873
SSDEEP 49152:yhVE7yRCmUxKfRV6CAVqe1gHjBy/ymEK/16wccHtgshpCVjiV:yhVDdV0bHtRjCVjY
TLSH
T1D4178E2BA3E901ACC0B3C07D89475507EBB2344653A1EEDB56A085665FB7BE01F7A730
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
AstroClient.exe

File Explorer

AstroClient.exe

.exe 18.9MB

AstroClient.exe

IMPHASH 96c988111beae19d6f75f54b89a75585
SHA256 6035fd1a6fcced8b12a087c677ce02c7fc8517dc006e577694b5280409a68492
MD5 7b68fa1a03cbe4531a0aaab5a822f841
SHA1 3d22d764fe4d739e33174dc363804c6fc0bf1f7b
SHA512 3b70c4752cea76d8cb53146709a230301989ea9f4571f9248e9fdca6ca65da1e173854235563ff7fe76b1d02f6318b6bb3fe5df2bf8dc829953a82610093b873
SSDEEP 49152:yhVE7yRCmUxKfRV6CAVqe1gHjBy/ymEK/16wccHtgshpCVjiV:yhVDdV0bHtRjCVjY
TLSH
T1D4178E2BA3E901ACC0B3C07D89475507EBB2344653A1EEDB56A085665FB7BE01F7A730
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

AstroClient.exe

ntdll

kernel32

generic