quasar | 4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0

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General

Target
4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0
Size 2.0MB
Sample241107-2q56fazdld
SHA256 4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0
MD5 8edce36c57a299022131f82ef1f41c2b
SHA1 2f06abb6f036468307463a5df702d9d918b9adaa
SHA512 8a3de5990501e84ec62d46dddafec11187d4cb679ae57b14178823744acb5dd413c8c4e1c5944ec61702dfd28a3c8af94096bbf6bd4a6dc1239e8f05bebc1af7
SSDEEP 24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYr:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yd
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

quasar

Malware Config

Signatures

Quasar family
quasar

Quasar payload 1 IoCs

resource	yara_rule
sample	family_quasar

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
sample	autoit_exe

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0

File Explorer

4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0

.exe 2.0MB

4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0

IMPHASH eb97e4fc5518ac300a92a11673825e0b
SHA256 4e736df4c2f1f5403f0e37a54f7e67f22bf5119f074a28a537e3dc19270eeef0
MD5 8edce36c57a299022131f82ef1f41c2b
SHA1 2f06abb6f036468307463a5df702d9d918b9adaa
SHA512 8a3de5990501e84ec62d46dddafec11187d4cb679ae57b14178823744acb5dd413c8c4e1c5944ec61702dfd28a3c8af94096bbf6bd4a6dc1239e8f05bebc1af7
SSDEEP 24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYr:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yd
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x86 arch:x86

Quasar payload
AutoIT Executable

AutoIT scripts compiled to PE executables.
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

163277

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_32BIT_MACHINE

PDB paths

wsock32

WSACleanup socket inet_ntoa setsockopt ntohs recvfrom ioctlsocket htons WSAStartup __WSAFDIsSet select accept listen bind closesocket WSAGetLastError recv sendto send inet_addr gethostbyname gethostname connect

version

GetFileVersionInfoW GetFileVersionInfoSizeW VerQueryValueW

winmm

timeGetTime waveOutSetVolume mciSendStringW

comctl32

ImageList_ReplaceIcon ImageList_Destroy ImageList_Remove ImageList_SetDragCursorImage ImageList_BeginDrag ImageList_DragEnter ImageList_DragLeave ImageList_EndDrag ImageList_DragMove InitCommonControlsEx ImageList_Create

mpr

WNetUseConnectionW WNetCancelConnection2W WNetGetConnectionW WNetAddConnection2W

wininet

InternetQueryDataAvailable InternetCloseHandle InternetOpenW InternetSetOptionW InternetCrackUrlW HttpQueryInfoW InternetQueryOptionW HttpOpenRequestW HttpSendRequestW FtpOpenFileW FtpGetFileSize InternetOpenUrlW InternetReadFile InternetConnectW

psapi

GetProcessMemoryInfo

iphlpapi

IcmpCreateFile IcmpCloseHandle IcmpSendEcho

userenv

DestroyEnvironmentBlock UnloadUserProfile CreateEnvironmentBlock LoadUserProfileW

uxtheme

IsThemeActive

kernel32

DuplicateHandle CreateThread WaitForSingleObject HeapAlloc GetProcessHeap HeapFree Sleep GetCurrentThreadId MultiByteToWideChar MulDiv GetVersionExW IsWow64Process GetSystemInfo FreeLibrary LoadLibraryA GetProcAddress SetErrorMode GetModuleFileNameW WideCharToMultiByte lstrcpyW lstrlenW GetModuleHandleW QueryPerformanceCounter VirtualFreeEx OpenProcess VirtualAllocEx WriteProcessMemory ReadProcessMemory CreateFileW SetFilePointerEx SetEndOfFile ReadFile WriteFile FlushFileBuffers TerminateProcess CreateToolhelp32Snapshot Process32FirstW Process32NextW SetFileTime GetFileAttributesW FindFirstFileW SetCurrentDirectoryW GetLongPathNameW GetShortPathNameW DeleteFileW FindNextFileW CopyFileExW MoveFileW CreateDirectoryW RemoveDirectoryW SetSystemPowerState QueryPerformanceFrequency FindResourceW LoadResource LockResource SizeofResource EnumResourceNamesW OutputDebugStringW GetTempPathW GetTempFileNameW DeviceIoControl GetLocalTime CompareStringW GetCurrentProcess EnterCriticalSection LeaveCriticalSection GetStdHandle CreatePipe InterlockedExchange TerminateThread LoadLibraryExW FindResourceExW CopyFileW VirtualFree FormatMessageW GetExitCodeProcess GetPrivateProfileStringW WritePrivateProfileStringW GetPrivateProfileSectionW WritePrivateProfileSectionW GetPrivateProfileSectionNamesW FileTimeToLocalFileTime FileTimeToSystemTime SystemTimeToFileTime LocalFileTimeToFileTime GetDriveTypeW GetDiskFreeSpaceExW GetDiskFreeSpaceW GetVolumeInformationW SetVolumeLabelW CreateHardLinkW SetFileAttributesW CreateEventW SetEvent GetEnvironmentVariableW SetEnvironmentVariableW GlobalLock GlobalUnlock GlobalAlloc GetFileSize GlobalFree GlobalMemoryStatusEx Beep GetSystemDirectoryW HeapReAlloc HeapSize GetComputerNameW GetWindowsDirectoryW GetCurrentProcessId GetProcessIoCounters CreateProcessW GetProcessId SetPriorityClass LoadLibraryW VirtualAlloc IsDebuggerPresent GetCurrentDirectoryW lstrcmpiW DecodePointer GetLastError RaiseException InitializeCriticalSectionAndSpinCount DeleteCriticalSection InterlockedDecrement InterlockedIncrement GetCurrentThread CloseHandle GetFullPathNameW EncodePointer ExitProcess GetModuleHandleExW ExitThread GetSystemTimeAsFileTime ResumeThread GetCommandLineW IsProcessorFeaturePresent IsValidCodePage GetACP GetOEMCP GetCPInfo SetLastError UnhandledExceptionFilter SetUnhandledExceptionFilter TlsAlloc TlsGetValue TlsSetValue TlsFree GetStartupInfoW GetStringTypeW SetStdHandle GetFileType GetConsoleCP GetConsoleMode RtlUnwind ReadConsoleW GetTimeZoneInformation GetDateFormatW GetTimeFormatW LCMapStringW GetEnvironmentStringsW FreeEnvironmentStringsW WriteConsoleW FindClose SetEnvironmentVariableA

user32

AdjustWindowRectEx CopyImage SetWindowPos GetCursorInfo RegisterHotKey ClientToScreen GetKeyboardLayoutNameW IsCharAlphaW IsCharAlphaNumericW IsCharLowerW IsCharUpperW GetMenuStringW GetSubMenu GetCaretPos IsZoomed MonitorFromPoint GetMonitorInfoW SetWindowLongW SetLayeredWindowAttributes FlashWindow GetClassLongW TranslateAcceleratorW IsDialogMessageW GetSysColor InflateRect DrawFocusRect DrawTextW FrameRect DrawFrameControl FillRect PtInRect DestroyAcceleratorTable CreateAcceleratorTableW SetCursor GetWindowDC GetSystemMetrics GetActiveWindow CharNextW wsprintfW RedrawWindow DrawMenuBar DestroyMenu SetMenu GetWindowTextLengthW CreateMenu IsDlgButtonChecked DefDlgProcW CallWindowProcW ReleaseCapture SetCapture CreateIconFromResourceEx mouse_event ExitWindowsEx SetActiveWindow FindWindowExW EnumThreadWindows SetMenuDefaultItem InsertMenuItemW IsMenu TrackPopupMenuEx GetCursorPos DeleteMenu SetRect GetMenuItemID GetMenuItemCount SetMenuItemInfoW GetMenuItemInfoW SetForegroundWindow IsIconic FindWindowW MonitorFromRect keybd_event SendInput GetAsyncKeyState SetKeyboardState GetKeyboardState GetKeyState VkKeyScanW LoadStringW DialogBoxParamW MessageBeep EndDialog SendDlgItemMessageW GetDlgItem SetWindowTextW CopyRect ReleaseDC GetDC EndPaint BeginPaint GetClientRect GetMenu DestroyWindow EnumWindows GetDesktopWindow IsWindow IsWindowEnabled IsWindowVisible EnableWindow InvalidateRect GetWindowLongW GetWindowThreadProcessId AttachThreadInput GetFocus GetWindowTextW ScreenToClient SendMessageTimeoutW EnumChildWindows CharUpperBuffW GetParent GetDlgCtrlID SendMessageW MapVirtualKeyW PostMessageW GetWindowRect SetUserObjectSecurity CloseDesktop CloseWindowStation OpenDesktopW SetProcessWindowStation GetProcessWindowStation OpenWindowStationW GetUserObjectSecurity MessageBoxW DefWindowProcW SetClipboardData EmptyClipboard CountClipboardFormats CloseClipboard GetClipboardData IsClipboardFormatAvailable OpenClipboard BlockInput GetMessageW LockWindowUpdate DispatchMessageW TranslateMessage PeekMessageW UnregisterHotKey CheckMenuRadioItem CharLowerBuffW MoveWindow SetFocus PostQuitMessage KillTimer CreatePopupMenu RegisterWindowMessageW SetTimer ShowWindow CreateWindowExW RegisterClassExW LoadIconW LoadCursorW GetSysColorBrush GetForegroundWindow MessageBoxA DestroyIcon SystemParametersInfoW LoadImageW GetClassNameW

gdi32

StrokePath DeleteObject GetTextExtentPoint32W ExtCreatePen GetDeviceCaps EndPath SetPixel CloseFigure CreateCompatibleBitmap CreateCompatibleDC SelectObject StretchBlt GetDIBits LineTo AngleArc MoveToEx Ellipse DeleteDC GetPixel CreateDCW GetStockObject GetTextFaceW CreateFontW SetTextColor PolyDraw BeginPath Rectangle SetViewportOrgEx GetObjectW SetBkMode RoundRect SetBkColor CreatePen CreateSolidBrush StrokeAndFillPath

comdlg32

GetOpenFileNameW GetSaveFileNameW

advapi32

GetAce RegEnumValueW RegDeleteValueW RegDeleteKeyW RegEnumKeyExW RegSetValueExW RegOpenKeyExW RegCloseKey RegQueryValueExW RegConnectRegistryW InitializeSecurityDescriptor InitializeAcl AdjustTokenPrivileges OpenThreadToken OpenProcessToken LookupPrivilegeValueW DuplicateTokenEx CreateProcessAsUserW CreateProcessWithLogonW GetLengthSid CopySid LogonUserW AllocateAndInitializeSid CheckTokenMembership RegCreateKeyExW FreeSid GetTokenInformation GetSecurityDescriptorDacl GetAclInformation AddAce SetSecurityDescriptorDacl GetUserNameW InitiateSystemShutdownExW

shell32

DragQueryPoint ShellExecuteExW DragQueryFileW SHEmptyRecycleBinW SHGetPathFromIDListW SHBrowseForFolderW SHCreateShellItem SHGetDesktopFolder SHGetSpecialFolderLocation SHGetFolderPathW SHFileOperationW ExtractIconExW Shell_NotifyIconW ShellExecuteW DragFinish

ole32

CoTaskMemAlloc CoTaskMemFree CLSIDFromString ProgIDFromCLSID CLSIDFromProgID OleSetMenuDescriptor MkParseDisplayName OleSetContainedObject CoCreateInstance IIDFromString StringFromGUID2 CreateStreamOnHGlobal OleInitialize OleUninitialize CoInitialize CoUninitialize GetRunningObjectTable CoGetInstanceFromFile CoGetObject CoSetProxyBlanket CoCreateInstanceEx CoInitializeSecurity

oleaut32

LoadTypeLibEx VariantCopyInd SysReAllocString SysFreeString SafeArrayDestroyDescriptor SafeArrayDestroyData SafeArrayUnaccessData SafeArrayAccessData SafeArrayAllocData SafeArrayAllocDescriptorEx SafeArrayCreateVector RegisterTypeLi CreateStdDispatch DispCallFunc VariantChangeType SysStringLen VariantTimeToSystemTime VarR8FromDec SafeArrayGetVartype VariantCopy VariantClear OleLoadPicture QueryPathOfRegTypeLi RegisterTypeLibForUser UnRegisterTypeLibForUser UnRegisterTypeLi CreateDispTypeInfo SysAllocString VariantInit