RobloxStudioInstaller[.]exe

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General

Target
RobloxStudioInstaller.exe
Size 5.1MB
Sample240513-hsnjmaed68
SHA256 cb84418aa6ff71e927125f05cd74b10cef07b40fe19a17f9ba5c3bd57f2d9591
MD5 911c020a364b10fe1de664c01de4534c
SHA1 8731aee51722d2e1604864eb8f03abe3e6d35441
SHA512 7e2c2259dde1fcb1a10a3864b1e24f892fb28d1c0a9a8b1b32d6b512d9f49b031cf6119f55dad008f0b2a5dc87ae606ee0c2918fdc44fc307d56bc933537db7b
SSDEEP 98304:sUv/8eXlYp2t/I3M+q9+7WMglfpEX54C+9LM2zgh/Nu6:j/XlOctMgldCuM0YP
MD5 SHA1 SHA512 SSDEEP

Score

1^/10

Malware Config

Signatures

File Explorer

RobloxStudioInstaller.exe

.exe 5.1MB

RobloxStudioInstaller.exe

IMPHASH 96b13535da0d4f8abf628d82bc5bcc3e
SHA256 cb84418aa6ff71e927125f05cd74b10cef07b40fe19a17f9ba5c3bd57f2d9591
MD5 911c020a364b10fe1de664c01de4534c
SHA1 8731aee51722d2e1604864eb8f03abe3e6d35441
SHA512 7e2c2259dde1fcb1a10a3864b1e24f892fb28d1c0a9a8b1b32d6b512d9f49b031cf6119f55dad008f0b2a5dc87ae606ee0c2918fdc44fc307d56bc933537db7b
SSDEEP 98304:sUv/8eXlYp2t/I3M+q9+7WMglfpEX54C+9LM2zgh/Nu6:j/XlOctMgldCuM0YP
MD5 SHA1 SHA512 SSDEEP

windows:6 windows x86 arch:x86

PE Signature issue

Digest

59:e0:e9:18:dc:d3:88:43:ff:d7:ed:08:de:fa:bb:89:0a:17:97:88:cd:53:9d:06:58:1b:19:36:1a:92:05:e4

Digest Algorithm

sha256

PE Digests Matches

Trusted

Not trusted

Signing Certificate

SERIALNUMBER=3780902,CN=Roblox Corporation,O=Roblox Corporation,L=San Mateo,ST=California,C=US,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.2=#130844656c6177617265,1.3.6.1.4.1.311.60.2.1.3=#13025553

Chains

Jan 1, 0001

Subject

Serial Number

0d:af:ec:46:d2:b7:34:a6:7f:4e:ad:75:7c:0b:c9:6b

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

Feb 13, 2024 - Feb 12, 2025

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Serial Number

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

Apr 29, 2021 - Apr 28, 2036

Subject

CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=US

Serial Number

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageTimeStamping

Timespan

Jul 14, 2023 - Oct 13, 2034

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Serial Number

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Timespan

Mar 23, 2022 - Mar 22, 2037

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Serial Number

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Timespan

Aug 1, 2022 - Nov 9, 2031

Minor OS version

Major OS version

Entry point

2989248

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_32BIT_MACHINE

PDB paths

C:\buildAgent\work\ci_deploy_ninja_boot-x86_git\build.ninja\common\vs2019\x86\release\Installer\Windows\RobloxStudioInstaller.pdb

comctl32

_TrackMouseEvent InitCommonControlsEx

gdiplus

GdipFree GdiplusStartup GdiplusShutdown GdipCloneImage GdipDisposeImage GdipCreateBitmapFromStream GdipAlloc GdipCreateHBITMAPFromBitmap

wininet

InternetReadFile InternetConnectW InternetQueryOptionW HttpOpenRequestW InternetCloseHandle HttpAddRequestHeadersW HttpSendRequestW HttpQueryInfoW InternetOpenW InternetQueryDataAvailable

bcrypt

BCryptGenRandom

advapi32

EqualSid CryptEnumProvidersW CryptSignHashW CryptDecrypt CopySid RegDeleteTreeW RegQueryValueExW RegQueryInfoKeyW RegEnumKeyExW IsValidSid GetTokenInformation SystemFunction036 DeregisterEventSource RegisterEventSourceW ReportEventW CryptSetHashParam CryptGetProvParam CryptGetUserKey CryptExportKey GetLengthSid GetUserNameW CryptAcquireContextW CryptReleaseContext CryptGetHashParam CryptCreateHash CryptHashData CryptDestroyHash RegCloseKey RegCreateKeyExW RegDeleteValueW RegOpenKeyExW RegSetValueExW RegGetValueW AllocateAndInitializeSid RegOpenKeyExA RegQueryValueExA CryptDestroyKey OpenProcessToken FreeSid

shell32

Shell_NotifyIconW ShellExecuteExW SHGetKnownFolderPath SHGetFolderPathAndSubDirW

iphlpapi

GetAdaptersAddresses

ws2_32

connect __WSAFDIsSet WSAIoctl inet_pton WSAGetLastError freeaddrinfo WSACreateEvent WSACloseEvent getsockopt htonl WSASetLastError WSACleanup WSAStartup setsockopt send select recv listen htons getsockname closesocket bind accept inet_ntop socket ntohs ntohl ioctlsocket getnameinfo gethostname getaddrinfo

crypt32

CertCloseStore CertEnumCertificatesInStore CertFreeCertificateContext CertGetEnhancedKeyUsage CertGetIntendedKeyUsage CertOpenSystemStoreA CertOpenStore CertFindCertificateInStore CertDuplicateCertificateContext CertGetCertificateContextProperty

kernel32

IsProcessorFeaturePresent GetStringTypeW GetLocaleInfoEx GetCPInfo UnhandledExceptionFilter LCMapStringEx EncodePointer InitOnceComplete InitOnceBeginInitialize SleepConditionVariableSRW SleepConditionVariableCS WakeAllConditionVariable WakeConditionVariable RtlUnwind InterlockedPushEntrySList GetCommandLineA ExitThread FreeLibraryAndExitThread GetConsoleOutputCP SetStdHandle HeapSize InitializeSListHead GetDriveTypeW PeekNamedPipe InitializeConditionVariable TryEnterCriticalSection InitializeSRWLock GetExitCodeThread SystemTimeToTzSpecificLocalTime SetConsoleCtrlHandler ExitProcess IsDebuggerPresent DebugBreak OutputDebugStringW CloseHandle GetLastError SetLastError HeapAlloc HeapFree GetProcessHeap ReleaseSemaphore ReleaseMutex WaitForSingleObject WaitForSingleObjectEx OpenSemaphoreW CreateMutexExW CreateSemaphoreExW GetCurrentProcessId GetCurrentThreadId GetModuleFileNameA GetModuleHandleW GetModuleHandleExW GetProcAddress FormatMessageW SetSearchPathMode GetCommandLineW VerSetConditionMask GetDiskFreeSpaceExW CreateFileMappingW VerifyVersionInfoW LocaleNameToLCID GetUserDefaultLocaleName Sleep FindClose FindFirstFileW FindNextFileW SetUnhandledExceptionFilter SetEvent CreateEventW OpenEventW CreateProcessW GetSystemTime CreateFileW GetFileSize MapViewOfFile UnmapViewOfFile DeleteFileW TerminateProcess InitializeProcThreadAttributeList UpdateProcThreadAttribute OpenProcess GetModuleFileNameW SystemTimeToFileTime CreateToolhelp32Snapshot Process32FirstW Process32NextW K32GetModuleFileNameExW GetCurrentProcess GetCurrentProcessorNumber GlobalMemoryStatusEx GetSystemInfo GetSystemTimeAsFileTime GetVersionExA IsWow64Process LoadLibraryA K32GetProcessMemoryInfo GetModuleHandleA OutputDebugStringA QueryPerformanceCounter QueryPerformanceFrequency CreateEventA SwitchToThread MultiByteToWideChar WideCharToMultiByte GetNativeSystemInfo LoadLibraryExW FileTimeToSystemTime VirtualQuery RaiseException DecodePointer InitializeCriticalSectionEx DeleteCriticalSection CreateSemaphoreA DuplicateHandle GetTickCount WaitForMultipleObjectsEx GetExitCodeProcess LocalAlloc LocalFree FindResourceExW LoadResource LockResource SizeofResource FindResourceW LoadLibraryW GlobalAlloc GlobalFree GlobalUnlock GlobalLock CreateDirectoryW GetFileAttributesW GetFileSizeEx ReadFile RemoveDirectoryW SetFileAttributesW WriteFile CopyFileW CompareStringEx FreeLibrary GetEnvironmentVariableW ReleaseSRWLockExclusive AcquireSRWLockExclusive EnterCriticalSection LeaveCriticalSection GetSystemDirectoryA MoveFileExA CompareFileTime GetEnvironmentVariableA SleepEx CreateThread VirtualAlloc ReleaseSRWLockShared AcquireSRWLockShared FormatMessageA GetCurrentDirectoryW GetFileAttributesExW GetFileInformationByHandle GetFileTime GetFullPathNameW SetEndOfFile SetFilePointerEx SetFileTime GetTempPathW DeviceIoControl MoveFileExW ResetEvent SetWaitableTimer ResumeThread TlsAlloc TlsGetValue TlsSetValue TlsFree CreateWaitableTimerA AreFileApisANSI InitializeCriticalSection GetStdHandle GetConsoleMode SetConsoleMode ReadConsoleA ReadConsoleW InitializeCriticalSectionAndSpinCount SwitchToFiber DeleteFiber CreateFiber GetFileType ConvertFiberToThread ConvertThreadToFiber GetTimeZoneInformation GetDateFormatW GetTimeFormatW CompareStringW LCMapStringW GetLocaleInfoW IsValidLocale GetUserDefaultLCID GetStartupInfoW EnumSystemLocalesW FlushFileBuffers HeapReAlloc FindFirstFileExW IsValidCodePage GetACP GetOEMCP GetEnvironmentStringsW FreeEnvironmentStringsW SetEnvironmentVariableW WriteConsoleW GetFinalPathNameByHandleW MulDiv

user32

GetWindowRect InvalidateRect EndPaint BeginPaint GetDC DrawTextW GetSystemMetrics EnableWindow KillTimer SetTimer TranslateAcceleratorW FillRect ShowWindow DestroyWindow GetShellWindow GetUserObjectInformationW GetProcessWindowStation LoadBitmapW GetWindowLongW LoadAcceleratorsW MessageBoxW SendMessageW DefWindowProcW DispatchMessageW TranslateMessage GetMessageW DestroyIcon LoadIconW EnumDisplayDevicesA GetWindowThreadProcessId GetDlgItem PostQuitMessage CallWindowProcW RegisterClassW CreateWindowExW SetWindowLongW GetDlgCtrlID

gdi32

CreateSolidBrush CreatePen DeleteDC DeleteObject GetDeviceCaps GetStockObject Rectangle RoundRect SelectObject SetDCBrushColor SetDCPenColor SetBkMode SetTextColor CreateFontW

ole32

CoInitializeEx StringFromGUID2 CoCreateInstance CoUninitialize CoInitialize CoTaskMemFree CoCreateGuid CoTaskMemAlloc

shlwapi

PathFindExtensionW PathFindFileNameW ord12

powrprof

CallNtPowerInformation

winmm

timeGetTime timeGetDevCaps timeBeginPeriod timeSetEvent

Sharing

General

Malware Config

Signatures

File Explorer

RobloxStudioInstaller.exe

PE Signature issue

comctl32

gdiplus

wininet

bcrypt

advapi32

shell32

iphlpapi

ws2_32

crypt32

kernel32

user32

gdi32

ole32

shlwapi

powrprof

winmm

generic