WebSvr[.]dll | Triage

Sharing

Copy URL Twitter E-mail

General

Target

WebSvr.dll
Size

4.7MB
MD5

3b2d05f11bd231f7fe8f9d7cf576bee3
SHA1

a1141fb72c7fb9065426fc43c206e22ed45c628b
SHA256

693d034b02239a570e49e098b26696e3f41dffe692f5dcb91f69f037d92356ce
SHA512

d0037a1bb2f7a62a0d996ce075baded54baca2db0835625b4bee6bceb93f7344cec0816b9d1b3e8ba2bbecb2751c34ba66f6d9f57ace2a3ed844fb265cdd816f
SSDEEP

49152:3Mc7jrDtf1NdNSyIa+QmIsArKCmWnodGSl8Xn9ebIwV9VTb2fcONyAp:3McBfb+ssArPb7Sq9ebIwV9WNy

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
WebSvr.dll

Files

WebSvr.dll
.dll regsvr32 windows:5 windows x86 arch:x86

7939f84a4c736f2a00a68b087232cfc9

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
IMAGE_FILE_BYTES_REVERSED_HI

Imports

oleaut32

SysFreeString
SysReAllocStringLen
SysAllocStringLen
SafeArrayGetElemsize
SafeArrayPtrOfIndex
SafeArrayPutElement
SafeArrayGetElement
SafeArrayUnaccessData
SafeArrayAccessData
SafeArrayGetUBound
SafeArrayGetLBound
SafeArrayCreate
VariantChangeType
VariantCopyInd
VariantCopy
VariantClear
VariantInit
CreateErrorInfo
GetErrorInfo
SetErrorInfo
RegisterTypeLib
LoadTypeLibEx
SysFreeString

advapi32

RegQueryValueExW
RegOpenKeyExW
RegCloseKey
RegUnLoadKeyW
RegSetValueExW
RegSaveKeyW
RegRestoreKeyW
RegReplaceKeyW
RegQueryValueExW
RegQueryInfoKeyW
RegOpenKeyExW
RegLoadKeyW
RegFlushKey
RegEnumValueW
RegEnumKeyExW
RegDeleteValueW
RegDeleteKeyW
RegCreateKeyExW
RegConnectRegistryW
RegCloseKey

user32

CharNextW
LoadStringW
SetClassLongW
GetClassLongW
SetWindowLongW
GetWindowLongW
CreateWindowExW
WindowFromPoint
WaitMessage
UpdateWindow
UnregisterClassW
UnhookWindowsHookEx
TranslateMessage
TranslateMDISysAccel
TrackPopupMenu
SystemParametersInfoW
ShowWindow
ShowScrollBar
ShowOwnedPopups
ShowCaret
SetWindowRgn
SetWindowsHookExW
SetWindowTextW
SetWindowPos
SetWindowPlacement
SetTimer
SetScrollRange
SetScrollPos
SetScrollInfo
SetRect
SetPropW
SetParent
SetMenuItemInfoW
SetMenu
SetForegroundWindow
SetFocus
SetCursorPos
SetCursor
SetClipboardData
SetCapture
SetActiveWindow
SendMessageA
SendMessageW
ScrollWindow
ScreenToClient
RemovePropW
RemoveMenu
ReleaseDC
ReleaseCapture
RegisterWindowMessageW
RegisterClipboardFormatW
RegisterClassW
RedrawWindow
PostThreadMessageW
PostQuitMessage
PostMessageW
PeekMessageA
PeekMessageW
OpenClipboard
MsgWaitForMultipleObjectsEx
MsgWaitForMultipleObjects
MessageBoxW
MessageBeep
MapWindowPoints
MapVirtualKeyW
LoadStringW
LoadKeyboardLayoutW
LoadIconW
LoadCursorW
LoadBitmapW
KillTimer
IsZoomed
IsWindowVisible
IsWindowUnicode
IsWindowEnabled
IsWindow
IsIconic
IsDialogMessageA
IsDialogMessageW
IsChild
InvalidateRect
InsertMenuItemW
InsertMenuW
HideCaret
GetWindowThreadProcessId
GetWindowTextW
GetWindowRect
GetWindowPlacement
GetWindowDC
GetTopWindow
GetSystemMetrics
GetSystemMenu
GetSysColorBrush
GetSysColor
GetSubMenu
GetScrollRange
GetScrollPos
GetScrollInfo
GetPropW
GetParent
GetWindow
GetMessagePos
GetMessageExtraInfo
GetMenuStringW
GetMenuState
GetMenuItemInfoW
GetMenuItemID
GetMenuItemCount
GetMenu
GetLastActivePopup
GetKeyboardState
GetKeyboardLayoutNameW
GetKeyboardLayoutList
GetKeyboardLayout
GetKeyState
GetKeyNameTextW
GetIconInfo
GetForegroundWindow
GetFocus
GetDlgCtrlID
GetDesktopWindow
GetDCEx
GetDC
GetCursorPos
GetCursor
GetClipboardData
GetClientRect
GetClassNameW
GetClassInfoExW
GetClassInfoW
GetCapture
GetActiveWindow
FrameRect
FindWindowExW
FindWindowW
FillRect
EnumWindows
EnumThreadWindows
EnumChildWindows
EndPaint
EndMenu
EnableWindow
EnableScrollBar
EnableMenuItem
EmptyClipboard
DrawTextExW
DrawTextW
DrawMenuBar
DrawIconEx
DrawIcon
DrawFrameControl
DrawFocusRect
DrawEdge
DispatchMessageA
DispatchMessageW
DestroyWindow
DestroyMenu
DestroyIcon
DestroyCursor
DeleteMenu
DefWindowProcW
DefMDIChildProcW
DefFrameProcW
CreatePopupMenu
CreateMenu
CreateIcon
CreateAcceleratorTableW
CopyImage
CopyIcon
CloseClipboard
ClientToScreen
CheckMenuItem
CharUpperBuffW
CharUpperW
CharNextW
CharLowerBuffW
CharLowerW
CallWindowProcW
CallNextHookEx
BeginPaint
AdjustWindowRectEx
ActivateKeyboardLayout
EnumDisplayMonitors
GetMonitorInfoW
MonitorFromPoint
MonitorFromRect
MonitorFromWindow

kernel32

Sleep
VirtualFree
VirtualAlloc
lstrlenW
VirtualQuery
QueryPerformanceCounter
GetTickCount
GetSystemInfo
GetVersion
CompareStringW
IsDBCSLeadByteEx
IsValidLocale
SetThreadLocale
GetSystemDefaultUILanguage
GetUserDefaultUILanguage
GetLocaleInfoW
WideCharToMultiByte
MultiByteToWideChar
GetConsoleOutputCP
GetConsoleCP
GetACP
LoadLibraryExW
GetStartupInfoW
GetProcAddress
GetModuleHandleW
GetModuleFileNameW
GetCommandLineW
FreeLibrary
GetLastError
UnhandledExceptionFilter
RtlUnwind
RaiseException
ExitProcess
ExitThread
SwitchToThread
GetCurrentThreadId
CreateThread
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
InitializeCriticalSection
FindFirstFileW
FindClose
SetCurrentDirectoryW
GetCurrentDirectoryW
WriteFile
SetFilePointer
SetEndOfFile
ReadFile
GetFileType
GetFileSize
CreateFileW
GetStdHandle
CloseHandle
GetProcAddress
RaiseException
LoadLibraryA
GetLastError
TlsSetValue
TlsGetValue
TlsFree
TlsAlloc
LocalFree
LocalAlloc
FreeLibrary
WritePrivateProfileStringW
WriteFile
WideCharToMultiByte
WaitForSingleObject
WaitForMultipleObjectsEx
VirtualQueryEx
VirtualQuery
VirtualProtect
VirtualFree
VirtualAlloc
VerSetConditionMask
VerifyVersionInfoW
TryEnterCriticalSection
SwitchToThread
SuspendThread
Sleep
SizeofResource
SetThreadPriority
SetThreadLocale
SetLastError
SetFilePointer
SetEvent
SetErrorMode
SetEndOfFile
ResumeThread
ResetEvent
ReadFile
RaiseException
QueryPerformanceFrequency
QueryPerformanceCounter
IsDebuggerPresent
MulDiv
LockResource
LocalFree
LoadResource
LoadLibraryW
LeaveCriticalSection
LCMapStringW
IsValidLocale
InitializeCriticalSection
HeapSize
HeapFree
HeapDestroy
HeapCreate
HeapAlloc
GlobalUnlock
GlobalLock
GlobalFree
GlobalFindAtomW
GlobalDeleteAtom
GlobalAlloc
GlobalAddAtomW
GetVolumeInformationW
GetVersionExW
GetVersion
GetTimeZoneInformation
GetTickCount
GetThreadPriority
GetThreadLocale
GetTempPathW
GetStdHandle
GetShortPathNameW
GetProcAddress
GetPrivateProfileStringW
GetModuleHandleW
GetModuleFileNameW
GetLocaleInfoW
GetLocalTime
GetLastError
GetFullPathNameW
GetFileSize
GetFileAttributesW
GetExitCodeThread
GetEnvironmentVariableW
GetDriveTypeW
GetDiskFreeSpaceW
GetDateFormatW
GetCurrentThreadId
GetCurrentThread
GetCurrentProcessId
GetCurrentProcess
GetComputerNameW
GetCPInfoExW
GetCPInfo
GetACP
FreeResource
InterlockedExchange
InterlockedCompareExchange
FreeLibrary
FormatMessageW
FindResourceW
FindFirstFileW
FindClose
EnumSystemLocalesW
EnumResourceNamesW
EnumCalendarInfoW
EnterCriticalSection
DeleteCriticalSection
CreateThread
CreateFileW
CreateEventW
CompareStringW
CloseHandle
Sleep

gdi32

UnrealizeObject
StretchDIBits
StretchBlt
StartPage
StartDocW
SetWindowOrgEx
SetWinMetaFileBits
SetViewportOrgEx
SetTextColor
SetStretchBltMode
SetRectRgn
SetROP2
SetPixel
SetEnhMetaFileBits
SetDIBits
SetDIBColorTable
SetBrushOrgEx
SetBkMode
SetBkColor
SetAbortProc
SelectPalette
SelectObject
SaveDC
RoundRect
RestoreDC
Rectangle
RectVisible
RealizePalette
Polyline
Polygon
PolyBezierTo
PolyBezier
PlayEnhMetaFile
Pie
PatBlt
MoveToEx
MaskBlt
LineTo
IntersectClipRect
GetWindowOrgEx
GetWinMetaFileBits
GetTextMetricsW
GetTextExtentPointW
GetTextExtentPoint32W
GetSystemPaletteEntries
GetStockObject
GetRgnBox
GetPixel
GetPaletteEntries
GetObjectW
GetEnhMetaFilePaletteEntries
GetEnhMetaFileHeader
GetEnhMetaFileDescriptionW
GetEnhMetaFileBits
GetDeviceCaps
GetDIBits
GetDIBColorTable
GetCurrentPositionEx
GetClipBox
GetBrushOrgEx
GetBitmapBits
GdiFlush
FrameRgn
ExtTextOutW
ExtFloodFill
ExcludeClipRect
EnumFontsW
EnumFontFamiliesExW
EndPage
EndDoc
Ellipse
DeleteObject
DeleteEnhMetaFile
DeleteDC
CreateSolidBrush
CreateRectRgn
CreatePenIndirect
CreatePalette
CreateICW
CreateHalftonePalette
CreateFontIndirectW
CreateDIBitmap
CreateDIBSection
CreateDCW
CreateCompatibleDC
CreateCompatibleBitmap
CreateBrushIndirect
CreateBitmap
CopyEnhMetaFileW
Chord
BitBlt
ArcTo
Arc
AngleArc
AbortDoc

version

VerQueryValueW
GetFileVersionInfoSizeW
GetFileVersionInfoW

netapi32

NetWkstaGetInfo

ole32

OleUninitialize
OleInitialize
CoTaskMemFree
CoTaskMemAlloc
StringFromCLSID
CoCreateInstance
CoLockObjectExternal
CoDisconnectObject
CoRevokeClassObject
CoRegisterClassObject
CoUninitialize
CoInitialize
IsEqualGUID

comctl32

InitializeFlatSB
FlatSB_SetScrollProp
FlatSB_SetScrollPos
FlatSB_SetScrollInfo
FlatSB_GetScrollPos
FlatSB_GetScrollInfo
_TrackMouseEvent
ImageList_GetImageInfo
ImageList_SetIconSize
ImageList_GetIconSize
ImageList_Write
ImageList_Read
ImageList_GetDragImage
ImageList_DragShowNolock
ImageList_DragMove
ImageList_DragLeave
ImageList_DragEnter
ImageList_EndDrag
ImageList_BeginDrag
ImageList_Copy
ImageList_LoadImageW
ImageList_GetIcon
ImageList_Remove
ImageList_DrawEx
ImageList_Replace
ImageList_Draw
ImageList_SetOverlayImage
ImageList_GetBkColor
ImageList_SetBkColor
ImageList_ReplaceIcon
ImageList_Add
ImageList_SetImageCount
ImageList_GetImageCount
ImageList_Destroy
ImageList_Create

msvcrt

memset
memcpy

shell32

Shell_NotifyIconW

winspool.drv

OpenPrinterW
EnumPrintersW
DocumentPropertiesW
ClosePrinter
GetDefaultPrinterW

Exports

Exports

ConnSvr
DisConnSvr
DllCanUnloadNow
DllGetClassObject
DllInstall
DllRegisterServer
DllUnregisterServer
GetServerTime
LoadConnParam
LoadIniParam
OpenModuleData
OpenModuleDataByCSID
PostModuleData
PostModuleDataWithStoreProc
SQLExecByID
SQLExistedByID
SQLGetDataByID
SetSvrIP
SqlExists
TMethodImplementationIntercept
Vehicle_InOut_Post
Vehicle_In_Check
Vehicle_Out_Check
__dbk_fcall_wrapper
dbkFCallWrapperAddr
spExecByID
spExecByID2
spGetDataByID

Sections

.text
Size: 4.2MB - Virtual size: 4.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.itext
Size: 10KB - Virtual size: 10KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 51KB - Virtual size: 51KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.bss
Size: - Virtual size: 23KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 15KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.didata
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.edata
Size: 1024B - Virtual size: 776B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rdata
Size: 512B - Virtual size: 69B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 401KB - Virtual size: 401KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 71KB - Virtual size: 71KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7939f84a4c736f2a00a68b087232cfc9

Headers

File Characteristics

Imports

oleaut32

advapi32

user32

kernel32

gdi32

version

netapi32

ole32

comctl32

msvcrt

shell32

winspool.drv

Exports

Exports

Sections

.text Size: 4.2MB - Virtual size: 4.2MB

.itext Size: 10KB - Virtual size: 10KB

.data Size: 51KB - Virtual size: 51KB

.bss Size: - Virtual size: 23KB

.idata Size: 15KB - Virtual size: 14KB

.didata Size: 3KB - Virtual size: 2KB

.edata Size: 1024B - Virtual size: 776B

.rdata Size: 512B - Virtual size: 69B

.reloc Size: 401KB - Virtual size: 401KB

.rsrc Size: 71KB - Virtual size: 71KB

.text
Size: 4.2MB - Virtual size: 4.2MB

.itext
Size: 10KB - Virtual size: 10KB

.data
Size: 51KB - Virtual size: 51KB

.bss
Size: - Virtual size: 23KB

.idata
Size: 15KB - Virtual size: 14KB

.didata
Size: 3KB - Virtual size: 2KB

.edata
Size: 1024B - Virtual size: 776B

.rdata
Size: 512B - Virtual size: 69B

.reloc
Size: 401KB - Virtual size: 401KB

.rsrc
Size: 71KB - Virtual size: 71KB