Static task
static1
General
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Target
NetworkStackOptimizer.exe
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Size
896KB
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MD5
3e37e700dbb17c0f865d9de9da899fca
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SHA1
424cf2ffe72151da0988e469a71d7d06f3dc12ca
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SHA256
701b5a2a04ad7ab76fc0fd80fca0b2dde95889cc01030fb4a4f2912a38f6cdb3
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SHA512
ff8f23f6f41d69d90c55134cfc838f08eaf2ae681c1a6834ef8b72dbe2ca152d82b9ed42726f748e4f540bbdf16871201a6dbf3a036dbda89a09d98e349b82ff
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SSDEEP
12288:5qDEvFo+yo4DdbbMWu/jrQu4M9lBAlKhQcDGB3cuBNGE6iOrpfe4JdaDgalTv:5qDEvCTbMWu7rQYlBQcBiT6rprG8aRv
Malware Config
Signatures
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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 NetworkStackOptimizer.exe
Files
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NetworkStackOptimizer.exe.exe windows:5 windows x86 arch:x86
c4540f421523fe2dc591e50be5ad7d0b
Headers
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
Imports
wsock32
gethostbyname
recv
send
socket
inet_ntoa
setsockopt
ntohs
WSACleanup
WSAStartup
sendto
htons
__WSAFDIsSet
select
accept
listen
bind
inet_addr
ioctlsocket
recvfrom
WSAGetLastError
closesocket
gethostname
connect
version
GetFileVersionInfoW
VerQueryValueW
GetFileVersionInfoSizeW
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
WNetGetConnectionW
WNetCancelConnection2W
WNetUseConnectionW
WNetAddConnection2W
wininet
HttpOpenRequestW
InternetCloseHandle
InternetOpenW
InternetSetOptionW
InternetCrackUrlW
HttpQueryInfoW
InternetQueryOptionW
InternetConnectW
HttpSendRequestW
FtpOpenFileW
FtpGetFileSize
InternetOpenUrlW
InternetReadFile
InternetQueryDataAvailable
psapi
GetProcessMemoryInfo
iphlpapi
IcmpSendEcho
IcmpCloseHandle
IcmpCreateFile
userenv
DestroyEnvironmentBlock
LoadUserProfileW
CreateEnvironmentBlock
UnloadUserProfile
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
FindClose
GetLongPathNameW
GetShortPathNameW
DeleteFileW
IsDebuggerPresent
CopyFileExW
MoveFileW
CreateDirectoryW
RemoveDirectoryW
SetSystemPowerState
QueryPerformanceFrequency
LoadResource
LockResource
SizeofResource
OutputDebugStringW
GetTempPathW
GetTempFileNameW
DeviceIoControl
LoadLibraryW
GetLocalTime
CompareStringW
GetCurrentThread
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
VirtualAlloc
GetCurrentDirectoryW
lstrcmpiW
DecodePointer
GetLastError
RaiseException
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
InterlockedDecrement
InterlockedIncrement
ResetEvent
WaitForSingleObjectEx
IsProcessorFeaturePresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
CloseHandle
GetFullPathNameW
GetStartupInfoW
GetSystemTimeAsFileTime
InitializeSListHead
RtlUnwind
SetLastError
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
EncodePointer
ExitProcess
GetModuleHandleExW
ExitThread
ResumeThread
FreeLibraryAndExitThread
GetACP
GetDateFormatW
GetTimeFormatW
LCMapStringW
GetStringTypeW
GetFileType
SetStdHandle
GetConsoleCP
GetConsoleMode
ReadConsoleW
GetTimeZoneInformation
FindFirstFileExW
IsValidCodePage
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
SetCurrentDirectoryW
FindNextFileW
WriteConsoleW
user32
GetKeyboardLayoutNameW
IsCharAlphaW
IsCharAlphaNumericW
IsCharLowerW
IsCharUpperW
GetMenuStringW
GetSubMenu
GetCaretPos
IsZoomed
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
PeekMessageW
GetInputState
UnregisterHotKey
CharLowerBuffW
MonitorFromPoint
MonitorFromRect
LoadImageW
mouse_event
ExitWindowsEx
SetActiveWindow
FindWindowExW
EnumThreadWindows
SetMenuDefaultItem
InsertMenuItemW
IsMenu
ClientToScreen
GetCursorPos
DeleteMenu
CheckMenuRadioItem
GetMenuItemID
GetMenuItemCount
SetMenuItemInfoW
GetMenuItemInfoW
SetForegroundWindow
IsIconic
FindWindowW
SystemParametersInfoW
LockWindowUpdate
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
SendMessageTimeoutW
EnumChildWindows
CharUpperBuffW
GetClassNameW
GetParent
GetDlgCtrlID
SendMessageW
MapVirtualKeyW
PostMessageW
GetWindowRect
SetUserObjectSecurity
CloseDesktop
CloseWindowStation
OpenDesktopW
RegisterHotKey
GetCursorInfo
SetWindowPos
CopyImage
AdjustWindowRectEx
SetRect
SetClipboardData
EmptyClipboard
CountClipboardFormats
CloseClipboard
GetClipboardData
IsClipboardFormatAvailable
OpenClipboard
BlockInput
TrackPopupMenuEx
GetMessageW
SetProcessWindowStation
GetProcessWindowStation
OpenWindowStationW
GetUserObjectSecurity
MessageBoxW
DefWindowProcW
MoveWindow
SetFocus
PostQuitMessage
KillTimer
CreatePopupMenu
RegisterWindowMessageW
SetTimer
ShowWindow
CreateWindowExW
RegisterClassExW
LoadIconW
LoadCursorW
GetSysColorBrush
GetForegroundWindow
MessageBoxA
DestroyIcon
DispatchMessageW
keybd_event
TranslateMessage
ScreenToClient
gdi32
EndPath
DeleteObject
GetTextExtentPoint32W
ExtCreatePen
StrokeAndFillPath
GetDeviceCaps
SetPixel
CloseFigure
LineTo
AngleArc
MoveToEx
Ellipse
CreateCompatibleBitmap
CreateCompatibleDC
PolyDraw
BeginPath
Rectangle
SetViewportOrgEx
GetObjectW
SetBkMode
RoundRect
SetBkColor
CreatePen
SelectObject
StretchBlt
CreateSolidBrush
SetTextColor
CreateFontW
GetTextFaceW
GetStockObject
CreateDCW
GetPixel
DeleteDC
GetDIBits
StrokePath
comdlg32
GetSaveFileNameW
GetOpenFileNameW
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
FreeSid
GetTokenInformation
RegCreateKeyExW
GetSecurityDescriptorDacl
GetAclInformation
GetUserNameW
AddAce
SetSecurityDescriptorDacl
InitiateSystemShutdownExW
shell32
DragFinish
DragQueryPoint
ShellExecuteExW
DragQueryFileW
SHEmptyRecycleBinW
SHGetPathFromIDListW
SHBrowseForFolderW
SHCreateShellItem
SHGetDesktopFolder
SHGetSpecialFolderLocation
SHGetFolderPathW
SHFileOperationW
ExtractIconExW
Shell_NotifyIconW
ShellExecuteW
ole32
CoTaskMemAlloc
CoTaskMemFree
CLSIDFromString
ProgIDFromCLSID
CLSIDFromProgID
OleSetMenuDescriptor
MkParseDisplayName
OleSetContainedObject
CoCreateInstance
IIDFromString
StringFromGUID2
CreateStreamOnHGlobal
OleInitialize
OleUninitialize
CoInitialize
CoUninitialize
GetRunningObjectTable
CoGetInstanceFromFile
CoGetObject
CoInitializeSecurity
CoCreateInstanceEx
CoSetProxyBlanket
oleaut32
CreateStdDispatch
CreateDispTypeInfo
UnRegisterTypeLi
UnRegisterTypeLibForUser
RegisterTypeLibForUser
RegisterTypeLi
LoadTypeLibEx
VariantCopyInd
SysReAllocString
SysFreeString
VariantChangeType
SafeArrayDestroyData
SafeArrayUnaccessData
SafeArrayAccessData
SafeArrayAllocData
SafeArrayAllocDescriptorEx
SafeArrayCreateVector
SysStringLen
QueryPathOfRegTypeLi
SysAllocString
VariantInit
VariantClear
DispCallFunc
VariantTimeToSystemTime
VarR8FromDec
SafeArrayGetVartype
SafeArrayDestroyDescriptor
VariantCopy
OleLoadPicture
Sections
.text Size: 619KB - Virtual size: 618KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 191KB - Virtual size: 190KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 18KB - Virtual size: 28KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 37KB - Virtual size: 37KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 29KB - Virtual size: 29KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ