Static task
static1
Behavioral task
behavioral1
Sample
OBA2.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
OBA2.exe
Resource
win10v2004-20241007-en
General
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Target
3bd9368a26c4c6a217e6cbfdd5bec484b2c4fa6c130904300b5e9a34aa7c5a4d
-
Size
833KB
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MD5
8d21b5d833a18a3b0d3942daa30c72ff
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SHA1
731a14e6b6d34dcc6f44f6791f5a9042a00b8cdb
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SHA256
3bd9368a26c4c6a217e6cbfdd5bec484b2c4fa6c130904300b5e9a34aa7c5a4d
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SHA512
b480040d57b05fa3ae3a57fe25126beaf7c6c3930d01bc92502dcceeadeef3a35f1fb1ceb9b0f930e95741d9f897b1da7575ecfa75ca28b70f9a17a90b80ed9a
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SSDEEP
24576:qpql5FHY+Le87CtQoXtUmdbC2pgrt00AApww9AA/:qpqpHY+aEWrC2qr+0AAR9L
Malware Config
Signatures
-
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
Processes:
resource yara_rule static1/unpack001/OBA2.exe autoit_exe -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource unpack001/OBA2.exe
Files
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3bd9368a26c4c6a217e6cbfdd5bec484b2c4fa6c130904300b5e9a34aa7c5a4d.rar
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OBA2.exe.exe windows:5 windows x86 arch:x86
7f2222d75bcebeb591b7d884c5b9299b
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
__WSAFDIsSet
recv
send
setsockopt
ntohs
recvfrom
select
WSAStartup
htons
accept
listen
bind
closesocket
connect
WSACleanup
ioctlsocket
sendto
WSAGetLastError
inet_addr
gethostbyname
gethostname
socket
version
GetFileVersionInfoW
VerQueryValueW
GetFileVersionInfoSizeW
winmm
timeGetTime
waveOutSetVolume
mciSendStringW
comctl32
ImageList_Destroy
ImageList_Remove
ImageList_SetDragCursorImage
ImageList_BeginDrag
ImageList_DragEnter
ImageList_DragLeave
ImageList_EndDrag
ImageList_DragMove
ImageList_Create
InitCommonControlsEx
ImageList_ReplaceIcon
mpr
WNetUseConnectionW
WNetCancelConnection2W
WNetGetConnectionW
WNetAddConnection2W
wininet
InternetReadFile
InternetCloseHandle
InternetOpenW
InternetSetOptionW
InternetCrackUrlW
HttpQueryInfoW
InternetQueryOptionW
HttpOpenRequestW
HttpSendRequestW
FtpOpenFileW
FtpGetFileSize
InternetOpenUrlW
InternetConnectW
InternetQueryDataAvailable
psapi
GetProcessMemoryInfo
iphlpapi
IcmpCreateFile
IcmpCloseHandle
IcmpSendEcho
userenv
UnloadUserProfile
DestroyEnvironmentBlock
CreateEnvironmentBlock
LoadUserProfileW
uxtheme
IsThemeActive
kernel32
HeapAlloc
GetProcessHeap
HeapFree
Sleep
GetCurrentThreadId
MultiByteToWideChar
MulDiv
GetVersionExW
GetSystemInfo
FreeLibrary
LoadLibraryA
GetProcAddress
SetErrorMode
GetModuleFileNameW
WideCharToMultiByte
lstrcpyW
lstrlenW
GetModuleHandleW
QueryPerformanceCounter
VirtualFreeEx
OpenProcess
VirtualAllocEx
WriteProcessMemory
ReadProcessMemory
CreateFileW
SetFilePointerEx
ReadFile
WriteFile
FlushFileBuffers
TerminateProcess
CreateToolhelp32Snapshot
Process32FirstW
Process32NextW
SetFileTime
GetFileAttributesW
FindFirstFileW
FindClose
GetLongPathNameW
GetCurrentThread
FindNextFileW
MoveFileW
CopyFileW
CreateDirectoryW
RemoveDirectoryW
SetSystemPowerState
QueryPerformanceFrequency
FindResourceW
LoadResource
LockResource
SizeofResource
EnumResourceNamesW
OutputDebugStringW
GetTempPathW
GetTempFileNameW
DeviceIoControl
GetLocalTime
CompareStringW
DeleteCriticalSection
WaitForSingleObject
LeaveCriticalSection
GetStdHandle
CreatePipe
InterlockedExchange
TerminateThread
LoadLibraryExW
FindResourceExW
VirtualFree
FormatMessageW
GetExitCodeProcess
GetPrivateProfileStringW
WritePrivateProfileStringW
GetPrivateProfileSectionW
WritePrivateProfileSectionW
GetPrivateProfileSectionNamesW
FileTimeToLocalFileTime
FileTimeToSystemTime
SystemTimeToFileTime
LocalFileTimeToFileTime
GetDriveTypeW
GetDiskFreeSpaceExW
GetDiskFreeSpaceW
GetVolumeInformationW
SetVolumeLabelW
CreateHardLinkW
SetFileAttributesW
GetShortPathNameW
CreateEventW
SetEvent
GetEnvironmentVariableW
SetEnvironmentVariableW
GlobalLock
GlobalUnlock
GlobalAlloc
GetFileSize
GlobalFree
GlobalMemoryStatusEx
Beep
GetSystemDirectoryW
GetComputerNameW
GetWindowsDirectoryW
GetCurrentProcessId
GetProcessIoCounters
CreateProcessW
SetPriorityClass
LoadLibraryW
VirtualAlloc
CloseHandle
GetLastError
GetFullPathNameW
SetCurrentDirectoryW
IsDebuggerPresent
GetCurrentDirectoryW
lstrcmpiW
RaiseException
InitializeCriticalSectionAndSpinCount
InterlockedDecrement
InterlockedIncrement
CreateThread
DuplicateHandle
EnterCriticalSection
GetCurrentProcess
ExitProcess
GetModuleHandleExW
ExitThread
GetSystemTimeAsFileTime
ResumeThread
GetCommandLineW
IsProcessorFeaturePresent
HeapSize
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
SetLastError
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetStartupInfoW
GetStringTypeW
SetStdHandle
GetFileType
GetConsoleCP
GetConsoleMode
RtlUnwind
ReadConsoleW
SetFilePointer
GetTimeZoneInformation
GetDateFormatW
GetTimeFormatW
LCMapStringW
GetEnvironmentStringsW
FreeEnvironmentStringsW
HeapReAlloc
WriteConsoleW
SetEndOfFile
DeleteFileW
SetEnvironmentVariableA
user32
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
DrawMenuBar
GetActiveWindow
CharNextW
wsprintfW
RedrawWindow
DestroyMenu
SetMenu
GetWindowTextLengthW
CreateMenu
IsDlgButtonChecked
DefDlgProcW
CallWindowProcW
ReleaseCapture
SetCapture
MonitorFromRect
LoadImageW
CreateIconFromResourceEx
mouse_event
ExitWindowsEx
SetActiveWindow
FindWindowExW
EnumThreadWindows
SetMenuDefaultItem
InsertMenuItemW
IsMenu
TrackPopupMenuEx
GetCursorPos
CopyImage
CheckMenuRadioItem
GetMenuItemID
GetMenuItemCount
SetMenuItemInfoW
GetMenuItemInfoW
SetForegroundWindow
IsIconic
FindWindowW
UnregisterHotKey
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
ScreenToClient
SendMessageTimeoutW
EnumChildWindows
CharUpperBuffW
GetClassNameW
GetParent
GetDlgCtrlID
SendMessageW
MapVirtualKeyW
PostMessageW
GetWindowRect
SetUserObjectSecurity
CloseDesktop
CloseWindowStation
OpenDesktopW
SetProcessWindowStation
GetProcessWindowStation
OpenWindowStationW
GetUserObjectSecurity
AdjustWindowRectEx
SetRect
SetClipboardData
EmptyClipboard
CountClipboardFormats
CloseClipboard
GetClipboardData
IsClipboardFormatAvailable
OpenClipboard
BlockInput
GetMessageW
LockWindowUpdate
DispatchMessageW
TranslateMessage
DeleteMenu
PeekMessageW
MessageBoxW
DefWindowProcW
MoveWindow
SetFocus
PostQuitMessage
KillTimer
CreatePopupMenu
RegisterWindowMessageW
SetTimer
ShowWindow
CreateWindowExW
RegisterClassExW
LoadIconW
LoadCursorW
GetSysColorBrush
GetForegroundWindow
MessageBoxA
DestroyIcon
SystemParametersInfoW
CharLowerBuffW
GetWindowTextW
gdi32
SetPixel
DeleteObject
GetTextExtentPoint32W
ExtCreatePen
StrokeAndFillPath
StrokePath
GetDeviceCaps
CloseFigure
LineTo
AngleArc
CreateCompatibleBitmap
CreateCompatibleDC
MoveToEx
Ellipse
PolyDraw
BeginPath
SelectObject
StretchBlt
GetDIBits
DeleteDC
GetPixel
CreateDCW
GetStockObject
Rectangle
SetViewportOrgEx
GetObjectW
SetBkMode
RoundRect
SetBkColor
CreatePen
CreateSolidBrush
SetTextColor
CreateFontW
GetTextFaceW
EndPath
comdlg32
GetSaveFileNameW
GetOpenFileNameW
advapi32
GetAclInformation
RegEnumValueW
RegDeleteValueW
RegDeleteKeyW
RegEnumKeyExW
RegSetValueExW
RegCreateKeyExW
GetUserNameW
RegOpenKeyExW
RegCloseKey
RegQueryValueExW
RegConnectRegistryW
InitializeSecurityDescriptor
InitializeAcl
AdjustTokenPrivileges
OpenThreadToken
OpenProcessToken
LookupPrivilegeValueW
DuplicateTokenEx
CreateProcessAsUserW
CreateProcessWithLogonW
GetLengthSid
CopySid
InitiateSystemShutdownExW
LogonUserW
AllocateAndInitializeSid
CheckTokenMembership
FreeSid
GetTokenInformation
GetSecurityDescriptorDacl
SetSecurityDescriptorDacl
AddAce
GetAce
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
CoInitialize
CoUninitialize
GetRunningObjectTable
CoGetInstanceFromFile
CoGetObject
CoInitializeSecurity
CoCreateInstanceEx
CoSetProxyBlanket
oleaut32
RegisterTypeLi
LoadTypeLibEx
VariantCopyInd
SysReAllocString
SysFreeString
SafeArrayDestroyDescriptor
SafeArrayDestroyData
SafeArrayUnaccessData
SafeArrayAccessData
SafeArrayAllocData
UnRegisterTypeLi
SafeArrayCreateVector
SysAllocString
SysStringLen
VariantTimeToSystemTime
VarR8FromDec
SafeArrayGetVartype
OleLoadPicture
QueryPathOfRegTypeLi
VariantCopy
VariantClear
CreateDispTypeInfo
CreateStdDispatch
DispCallFunc
VariantChangeType
SafeArrayAllocDescriptorEx
VariantInit
Sections
.text Size: 557KB - Virtual size: 557KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 179KB - Virtual size: 179KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 24KB - Virtual size: 39KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 521KB - Virtual size: 521KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 41KB - Virtual size: 41KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ