OemDrv[.]exe | Triage

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General

Target

OemDrv.exe
Size

2.1MB
MD5

8259312b7ec9b3378869b2e97794e7f8
SHA1

cb590d6911b6dbd9bb771513e1b2430e0efcaf61
SHA256

41594bdc54106ee623158432729c0af1e6c27c99d9ef8291ba48c8485fd0b964
SHA512

2ed7dde9681aa9776a69ca3c06f6bee9eaf374c6025fe418cdbe665442b8c66383931fed4a0fcd0dab2329c1b74c89cb7738defed2a17c62091a345338a3213c
SSDEEP

49152:WRVuI4ajT83n6/Xd1NH0XJLA4yUVSRJ1rINrWpuvw:WDpZTWIX/NH0XlAJUVSn1rINrW

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
OemDrv.exe

Files

OemDrv.exe
.exe windows x86

45504b2c26e66b1f70558db4834ee7c0

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

SetEnvironmentVariableA
LCMapStringW
LCMapStringA
GetConsoleMode
GetConsoleCP
IsValidCodePage
GetOEMCP
GetACP
GetCPInfo
QueryPerformanceCounter
VirtualFree
HeapCreate
GetStartupInfoA
SetHandleCount
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetModuleFileNameA
GetStdHandle
GetFileType
SetStdHandle
VirtualQuery
SizeofResource
GetSystemInfo
VirtualAlloc
HeapSize
ExitProcess
RaiseException
RtlUnwind
HeapReAlloc
IsDebuggerPresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
CreateFileA
GetSystemTimeAsFileTime
HeapFree
HeapAlloc
ExitThread
GetStartupInfoW
FindResourceExW
GetProcessHeap
WriteConsoleW
GetConsoleOutputCP
WriteConsoleA
GetLocaleInfoA
VirtualProtect
GetProfileIntW
SearchPathW
GetTempPathW
GetTempFileNameW
lstrcpyW
GetCurrentDirectoryW
GetFileTime
GetFileSizeEx
FileTimeToLocalFileTime
SetErrorMode
GlobalFlags
TlsFree
DeleteCriticalSection
LocalReAlloc
TlsSetValue
TlsAlloc
InitializeCriticalSection
GlobalHandle
EnterCriticalSection
TlsGetValue
LeaveCriticalSection
LocalAlloc
InterlockedIncrement
GetStringTypeW
GetStringTypeA
GetTimeZoneInformation
TerminateProcess
InitializeCriticalSectionAndSpinCount
FileTimeToSystemTime
lstrlenA
GlobalGetAtomNameW
ReleaseMutex
InterlockedDecrement
ResumeThread
SetThreadPriority
GetCurrentThread
ConvertDefaultLocale
EnumResourceLanguagesW
lstrcmpA
GetLocaleInfoW
CompareStringA
InterlockedExchange
GetFullPathNameW
GetVolumeInformationW
GetCurrentProcess
DuplicateHandle
SetEndOfFile
UnlockFile
LockFile
FlushFileBuffers
SetFilePointer
GetThreadLocale
GlobalAddAtomW
GlobalFindAtomW
GlobalDeleteAtom
CompareStringW
LoadLibraryA
lstrcmpW
GetModuleHandleW
GetVersionExA
GetCurrentProcessId
GetModuleHandleA
SetLastError
GlobalSize
lstrlenW
MulDiv
WaitForSingleObject
GetHandleInformation
GetOverlappedResult
CancelIo
GetVersionExW
FreeLibrary
GetProcAddress
LoadLibraryW
FreeResource
GetPrivateProfileStringW
WritePrivateProfileStringW
GetPrivateProfileIntW
CreateMutexW
LocalFree
GetCommandLineW
GetModuleFileNameW
FormatMessageW
RemoveDirectoryW
SetFileAttributesW
WriteFile
CreateDirectoryW
GetFileAttributesW
CopyFileW
DeleteFileW
MoveFileW
lstrcmpiW
FindClose
FindNextFileW
FindFirstFileW
ReadFile
GetFileSize
GlobalFree
GlobalReAlloc
GlobalUnlock
GlobalLock
GlobalAlloc
WideCharToMultiByte
MultiByteToWideChar
CreateFileW
CreateThread
GetLastError
GetCurrentThreadId
GetTickCount
GetLocalTime
OutputDebugStringW
WaitForMultipleObjects
CreateSemaphoreW
CreateEventW
ReleaseSemaphore
CloseHandle
Sleep
SetEvent
FindResourceW
LoadResource
LockResource

user32

DrawFrameControl
DrawEdge
DrawIconEx
UnpackDDElParam
ReuseDDElParam
InsertMenuItemW
TranslateAcceleratorW
UnregisterClassW
GetNextDlgGroupItem
InvalidateRgn
CharNextW
EmptyClipboard
CloseClipboard
SetClipboardData
DestroyIcon
CopyImage
OpenClipboard
DrawStateW
RegisterClipboardFormatW
EnumChildWindows
LockWindowUpdate
BringWindowToTop
IsRectEmpty
IsMenu
SetClassLongW
SetParent
NotifyWinEvent
CreateAcceleratorTableW
LoadAcceleratorsW
DestroyAcceleratorTable
GetAsyncKeyState
GetKeyboardState
GetKeyboardLayout
ToUnicodeEx
CopyAcceleratorTableW
PostThreadMessageW
SetRectEmpty
DeleteMenu
WaitMessage
GetSysColorBrush
WindowFromPoint
GetMenuItemInfoW
InflateRect
ShowOwnedPopups
GetMessageW
TranslateMessage
ValidateRect
SetWindowContextHelpId
MapDialogRect
RedrawWindow
IsZoomed
PostQuitMessage
GetKeyNameTextW
CharUpperW
LoadMenuW
SetMenuItemBitmaps
GetMenuCheckMarkDimensions
LoadBitmapW
ModifyMenuW
EnableMenuItem
CheckMenuItem
RegisterWindowMessageW
SendDlgItemMessageA
WinHelpW
IsChild
GetCapture
SetWindowsHookExW
CallNextHookEx
GetClassLongW
GetClassNameW
SetPropW
GetPropW
RemovePropW
GetForegroundWindow
DrawFocusRect
BeginDeferWindowPos
EndDeferWindowPos
GetTopWindow
UnhookWindowsHookEx
GetMessagePos
PeekMessageW
MapWindowPoints
ScrollWindow
GetKeyState
SetMenu
SetScrollRange
GetScrollRange
SetScrollPos
GetScrollPos
ShowScrollBar
CreateWindowExW
GetClassInfoExW
GetClassInfoW
RegisterClassW
AdjustWindowRectEx
EqualRect
DeferWindowPos
GetScrollInfo
SetScrollInfo
SetWindowPlacement
DefWindowProcW
CallWindowProcW
GetMenu
OffsetRect
IntersectRect
SystemParametersInfoA
GetWindowPlacement
GetWindowTextLengthW
GetWindowTextW
GetDlgCtrlID
SetWindowTextW
IsDialogMessageW
SendDlgItemMessageW
CheckDlgButton
GetWindow
GetWindowThreadProcessId
GetSysColor
EndPaint
BeginPaint
GrayStringW
DrawTextExW
DrawTextW
TabbedTextOutW
GetDesktopWindow
GetActiveWindow
SetActiveWindow
CreateDialogIndirectParamW
DestroyWindow
GetDlgItem
IsWindowEnabled
GetNextDlgTabItem
EndDialog
SetCursorPos
UnionRect
EnableScrollBar
UpdateLayeredWindow
SetMenuDefaultItem
GetMenuDefaultItem
IsCharLowerW
MapVirtualKeyExW
IsClipboardFormatAvailable
DefFrameProcW
DefMDIChildProcW
DrawMenuBar
TranslateMDISysAccel
GetMenuState
GetMenuStringW
GetMenuItemID
InsertMenuW
GetMenuItemCount
GetSubMenu
RemoveMenu
SetFocus
MoveWindow
ToAscii
MapVirtualKeyW
GetUpdateRect
CharUpperBuffW
CopyIcon
SubtractRect
GetIconInfo
CreateMenu
GetWindowRgn
DispatchMessageW
DestroyCursor
UpdateWindow
ReleaseCapture
ClientToScreen
SetCapture
TrackMouseEvent
GetWindowDC
DestroyMenu
TrackPopupMenu
CreatePopupMenu
GetLastActivePopup
GetMessageTime
RegisterDeviceNotificationW
DrawIcon
IsIconic
SetForegroundWindow
ShowWindow
LoadImageW
AppendMenuW
GetSystemMenu
UnregisterDeviceNotification
LoadIconW
SetLayeredWindowAttributes
GetWindowLongW
SetWindowLongW
SetWindowPos
GetDoubleClickTime
SystemParametersInfoW
SetCursor
LoadCursorW
ScreenToClient
GetCursorPos
ReleaseDC
GetDC
IsWindow
GetFocus
PtInRect
KillTimer
SetTimer
GetSystemMetrics
SendMessageW
FrameRect
FillRect
MessageBoxW
FindWindowW
CopyRect
IsWindowVisible
InvalidateRect
EnableWindow
GetClientRect
SetRect
GetParent
GetWindowRect
SetWindowRgn
PostMessageW
MessageBeep

gdi32

CreatePatternBrush
CreateBitmap
GetObjectType
CreatePen
CreateHatchBrush
GetDCOrgEx
CreateRectRgnIndirect
PatBlt
GetTextExtentPoint32W
GetTextMetricsW
SetRectRgn
GetMapMode
DPtoLP
OffsetRgn
GetRgnBox
CreateDIBitmap
EnumFontFamiliesW
GetTextCharsetInfo
CreateRoundRectRgn
GetTextColor
SetDIBColorTable
SetPixel
GetBkColor
CreateEllipticRgn
CreatePolygonRgn
Polyline
Ellipse
Polygon
CreatePalette
GetPaletteEntries
GetWindowOrgEx
PtInRegion
FillRgn
FrameRgn
GetBoundsRect
GetViewportOrgEx
LPtoDP
ExtFloodFill
SetPaletteEntries
GetNearestPaletteIndex
GetSystemPaletteEntries
EnumFontFamiliesExW
GetTextFaceW
SetPixelV
SetTextAlign
MoveToEx
ExtSelectClipRgn
ScaleWindowExtEx
SetWindowExtEx
OffsetWindowOrgEx
SetWindowOrgEx
ScaleViewportExtEx
SetViewportExtEx
OffsetViewportOrgEx
SetViewportOrgEx
Escape
ExtTextOutW
TextOutW
RectVisible
PtVisible
GetWindowExtEx
GetViewportExtEx
SelectClipRgn
RoundRect
CreateCompatibleDC
LineTo
IntersectClipRect
ExcludeClipRect
GetClipBox
SetMapMode
SetTextColor
SetROP2
SetPolyFillMode
SetBkMode
SetBkColor
RestoreDC
SaveDC
CopyMetaFileW
GetDeviceCaps
RemoveFontResourceW
AddFontResourceW
CreateFontIndirectW
CreateRectRgn
Rectangle
GetPixel
GetDIBits
RealizePalette
SelectPalette
GetStockObject
StretchBlt
DeleteDC
DeleteObject
CombineRgn
ExtCreateRegion
SelectObject
CreateDIBSection
GetObjectW
CreateFontW
CreateSolidBrush
BitBlt
CreateCompatibleBitmap

msimg32

AlphaBlend
TransparentBlt

comdlg32

GetFileTitleW

winspool.drv

DocumentPropertiesW
OpenPrinterW
ClosePrinter

advapi32

RegEnumKeyExW
RegOpenKeyExW
RegQueryValueExW
RegOpenKeyW
RegCreateKeyExW
RegSetValueExW
RegDeleteValueW
RegDeleteKeyW
RegEnumKeyW
RegCloseKey
RegQueryValueW

shell32

SHGetSpecialFolderPathW
SHBrowseForFolderW
SHGetPathFromIDListW
CommandLineToArgvW
Shell_NotifyIconW
SHGetFileInfoW
SHAppBarMessage
DragQueryFileW
DragFinish
ShellExecuteW

comctl32

InitCommonControlsEx
ImageList_GetIconSize

shlwapi

PathFileExistsW
PathStripToRootW
PathIsUNCW
PathRemoveFileSpecW
PathFindExtensionW
PathRemoveExtensionW
StrStrIW
PathFindFileNameW

oledlg

OleUIBusyW

ole32

OleDuplicateData
CoUninitialize
CoCreateInstance
CoInitializeEx
CLSIDFromProgID
CLSIDFromString
CoGetClassObject
StgOpenStorageOnILockBytes
StgCreateDocfileOnILockBytes
CreateILockBytesOnHGlobal
OleLockRunning
OleIsCurrentClipboard
OleFlushClipboard
DoDragDrop
OleGetClipboard
OleUninitialize
CoFreeUnusedLibraries
OleInitialize
OleCreateMenuDescriptor
OleDestroyMenuDescriptor
OleTranslateAccelerator
IsAccelerator
CoRegisterMessageFilter
CoTaskMemAlloc
ReleaseStgMedium
CoTaskMemFree
CreateStreamOnHGlobal
RegisterDragDrop
CoRevokeClassObject
RevokeDragDrop
CoLockObjectExternal

oleaut32

OleCreateFontIndirect
SysAllocString
SystemTimeToVariantTime
VariantTimeToSystemTime
SafeArrayDestroy
VariantCopy
VariantInit
VariantChangeType
VariantClear
SysAllocStringLen
SysFreeString
SysStringLen

gdiplus

GdipDrawImageI
GdipBitmapUnlockBits
GdipBitmapLockBits
GdipCreateBitmapFromStreamICM
GdipCreateBitmapFromStream
GdipGetImagePalette
GdipGetImagePaletteSize
GdipGetImagePixelFormat
GdipDrawRectangle
GdipFillRectangleI
GdipDeletePen
GdipCreatePen1
GdipSetPixelOffsetMode
GdipSetInterpolationMode
GdipSetImageAttributesWrapMode
GdipDisposeImageAttributes
GdipCreateImageAttributes
GdipDrawImageRectI
GdipDeletePath
GdipCreatePath
GdipCloneBrush
GdipDeleteBrush
GdipCreateSolidFill
GdipFillRectangle
GdiplusShutdown
GdiplusStartup
GdipGetImageGraphicsContext
GdipCreateBitmapFromScan0
GdipCloneBitmapAreaI
GdipDrawImageRect
GdipDrawImageRectRect
GdipDeleteGraphics
GdipCreateFromHDC
GdipGetImageHeight
GdipCreateHBITMAPFromBitmap
GdipGetImageWidth
GdipFree
GdipDisposeImage
GdipAlloc
GdipCloneImage
GdipCreateBitmapFromFile

setupapi

SetupDiGetClassDevsW
SetupDiDestroyDeviceInfoList
SetupDiGetDeviceInterfaceDetailW
SetupDiEnumDeviceInterfaces

hid

HidD_GetProductString
HidD_GetHidGuid
HidD_GetPreparsedData
HidP_GetSpecificValueCaps
HidP_GetSpecificButtonCaps
HidD_SetFeature
HidD_FreePreparsedData
HidP_GetCaps
HidD_GetAttributes

imm32

ImmGetOpenStatus
ImmReleaseContext
ImmGetContext

winmm

PlaySoundW

Sections

.text
Size: 1.5MB - Virtual size: 1.5MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 349KB - Virtual size: 349KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 32KB - Virtual size: 215KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 82KB - Virtual size: 81KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 166KB - Virtual size: 166KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

45504b2c26e66b1f70558db4834ee7c0

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

msimg32

comdlg32

winspool.drv

advapi32

shell32

comctl32

shlwapi

oledlg

ole32

oleaut32

gdiplus

setupapi

hid

imm32

winmm

Sections

.text Size: 1.5MB - Virtual size: 1.5MB

.rdata Size: 349KB - Virtual size: 349KB

.data Size: 32KB - Virtual size: 215KB

.rsrc Size: 82KB - Virtual size: 81KB

.reloc Size: 166KB - Virtual size: 166KB

.text
Size: 1.5MB - Virtual size: 1.5MB

.rdata
Size: 349KB - Virtual size: 349KB

.data
Size: 32KB - Virtual size: 215KB

.rsrc
Size: 82KB - Virtual size: 81KB

.reloc
Size: 166KB - Virtual size: 166KB