AltTab[.]dll | Triage

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General

Target

AltTab.dll
Size

45KB
MD5

b2b3dae040f6b5ae1df52b0cd7631a18
SHA1

7f618396a910908019b5580b4da9031af4a433ca
SHA256

062680eff24eb83ff34ddd76043db9abb476c8fee7bbe869a1e7f7fc8891314f
SHA512

bb095fab15af1a3e71b05f2c3c9db5f6ad9efc602168ae96f4b4e422e16717f2c0efd56295660a1f8c204afeb1057dc9a1372c4221d73af14425a94ea235f4b1
SSDEEP

768:j3Upj2DUdUnFnFYRL9Bjdo6E4aoDOLVfOLC:AMod8CLz3awOdOLC

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
AltTab.dll

Files

AltTab.dll
.dll windows:6 windows x86 arch:x86

aff84c2bf9924eee71481dd10bd98d94

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

AltTab.pdb

Imports

msvcrt

??_V@YAXPAX@Z
_purecall
??_U@YAPAXI@Z
_ftol2
_CIsin
_CIcos
memset
??2@YAPAXI@Z
_XcptFilter
malloc
_except_handler4_common
_amsg_exit
_initterm
free
??3@YAXPAX@Z

ntdll

EtwEventUnregister
EtwEventWrite
WinSqmIncrementDWORD
EtwEventRegister

kernel32

OpenProcess
QueryFullProcessImageNameW
LoadLibraryExW
IsDebuggerPresent
QueryPerformanceFrequency
InitializeCriticalSection
DeleteCriticalSection
InterlockedIncrement
InterlockedDecrement
LeaveCriticalSection
EnterCriticalSection
HeapDestroy
DelayLoadFailureHook
GetProcAddress
GetLastError
FreeLibrary
InterlockedCompareExchange
LoadLibraryExA
InterlockedExchange
Sleep
QueryPerformanceCounter
GetTickCount
GetCurrentThreadId
GetCurrentProcessId
GetSystemTimeAsFileTime
TerminateProcess
GetCurrentProcess
UnhandledExceptionFilter
SetUnhandledExceptionFilter
CloseHandle
ReleaseMutex
CreateMutexW
SetThreadPriority
GetCurrentThread
GlobalAddAtomW
GetModuleHandleW
CompareStringW

comctl32

ord329
ord328
ord336
ord334
ord338
ord386
ImageList_CoCreateInstance

shlwapi

ord219
SHGetValueW
ord197
ord16

dwmapi

ord124
DwmUnregisterThumbnail
DwmQueryThumbnailSourceSize
DwmUpdateThumbnailProperties
DwmExtendFrameIntoClientArea
ord113
DwmSetWindowAttribute

gdi32

GetDeviceCaps

user32

GetUpdateRect
BeginPaint
EndPaint
SetCapture
LoadIconW
InternalGetWindowText
SendMessageCallbackW
GetParent
ClientToScreen
GetWindowRgnBox
GetWindowThreadProcessId
GetDesktopWindow
DestroyIcon
GetClassLongW
IsIconic
SwitchToThisWindow
SetForegroundWindow
GetKeyState
GetAsyncKeyState
SetFocus
GetForegroundWindow
GetFocus
NotifyWinEvent
SetLayeredWindowAttributes
GetPropW
PostMessageW
CloseDesktop
SetThreadDesktop
OpenInputDesktop
GetSystemMetrics
DispatchMessageW
TranslateMessage
GetMessageW
UnhookWinEvent
SetWinEventHook
GetWindowLongW
CreateWindowExW
DestroyWindow
UnregisterHotKey
RegisterHotKey
IsWindow
SetWindowLongW
DefWindowProcW
RegisterClassW
ReleaseDC
GetDC
SendMessageW
FindWindowW
IsWindowVisible
EnumWindows
UnregisterClassW
LoadStringW
GetWindow
SetCursor
LoadCursorW
InflateRect
ScreenToClient
GetCursorPos
SystemParametersInfoW
ShowWindow
IsRectEmpty
GetWindowRect
GhostWindowFromHungWindow
IsWindowEnabled
InvalidateRect
HungWindowFromGhostWindow
PtInRect
KillTimer
GetShellWindow
GetClientRect
SetTimer
UpdateLayeredWindow
OffsetRect
SetRectEmpty
UpdateWindow
SetWindowPos
ReleaseCapture

ole32

PropVariantClear

Exports

Exports

DllCanUnloadNow
DllGetClassObject

Sections

.text
Size: 37KB - Virtual size: 36KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

aff84c2bf9924eee71481dd10bd98d94

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

ntdll

kernel32

comctl32

shlwapi

dwmapi

gdi32

user32

ole32

Exports

Exports

Sections

.text Size: 37KB - Virtual size: 36KB

.data Size: 1KB - Virtual size: 1KB

.rsrc Size: 4KB - Virtual size: 3KB

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 37KB - Virtual size: 36KB

.data
Size: 1KB - Virtual size: 1KB

.rsrc
Size: 4KB - Virtual size: 3KB

.reloc
Size: 2KB - Virtual size: 1KB