Static task
static1
Behavioral task
behavioral1
Sample
DefleMask.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
DefleMask.exe
Resource
win10v2004-20240802-en
General
-
Target
DefleMask.exe
-
Size
16.9MB
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MD5
bdeae7330fea8aa1f664990dbbe1ddfa
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SHA1
3846de1dbafc5ed46b49d7a526ca6f7d44cba89e
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SHA256
59fbb55f240622b318c05baff85225a9d62dea9dc64f59e6467e0f24f53817da
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SHA512
a27eca5efbc5fad5f909b63dd51e688ef965506a1d31a204da7fd6b3c78df1e31795f34f0af5d7a94c9e3108bdc64efa68ae1ed3777a20e3c95566f3e6cd0257
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SSDEEP
196608:tmGj3epYrSUsJGBJKMBHitOzq6FtQ2wZbW5PyIKcVNSXHHvOzd9rw1qQPf70JAVJ:V3epYaJGBsW5qEVNynQw0If7fFd
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource DefleMask.exe
Files
-
DefleMask.exe.exe windows:4 windows x86 arch:x86
25bfd884454ed4c1a7c8137279419b5f
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED
Imports
advapi32
RegCloseKey
RegCreateKeyExW
RegOpenKeyExA
RegOpenKeyExW
RegQueryValueExA
RegQueryValueExW
RegSetValueExW
gdi32
BitBlt
ChoosePixelFormat
CombineRgn
CreateBitmap
CreateCompatibleBitmap
CreateCompatibleDC
CreateDCW
CreateDIBSection
CreateFontIndirectW
CreateFontW
CreatePen
CreateRectRgn
CreateSolidBrush
DeleteDC
DeleteObject
DescribePixelFormat
ExtTextOutW
GetDIBits
GetDeviceCaps
GetDeviceGammaRamp
GetICMProfileW
GetPixelFormat
GetTextExtentPoint32A
GetTextExtentPoint32W
GetTextMetricsW
Rectangle
SelectObject
SetBkMode
SetDeviceGammaRamp
SetPixelFormat
SetTextColor
SwapBuffers
imm32
ImmAssociateContext
ImmGetCandidateListW
ImmGetCompositionStringW
ImmGetContext
ImmGetIMEFileNameA
ImmNotifyIME
ImmReleaseContext
ImmSetCandidateWindow
ImmSetCompositionStringW
ImmSetCompositionWindow
kernel32
AddVectoredExceptionHandler
AttachConsole
CancelIo
CloseHandle
CompareStringA
CreateDirectoryA
CreateDirectoryW
CreateEventA
CreateEventW
CreateFileA
CreateFileMappingW
CreateFileW
CreateSemaphoreA
CreateSemaphoreW
CreateThread
CreateToolhelp32Snapshot
DeleteCriticalSection
DeviceIoControl
DuplicateHandle
EnterCriticalSection
ExitProcess
FileTimeToDosDateTime
FileTimeToLocalFileTime
FileTimeToSystemTime
FindClose
FindFirstFileA
FindFirstFileExW
FindNextFileW
FormatMessageW
FreeLibrary
GetCommandLineW
GetConsoleMode
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetEnvironmentVariableA
GetExitCodeProcess
GetFileSizeEx
GetFullPathNameA
GetFullPathNameW
GetHandleInformation
GetLastError
GetLocaleInfoA
GetLogicalDriveStringsA
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOverlappedResult
GetProcAddress
GetProcessAffinityMask
GetProcessHeap
GetProcessTimes
GetStartupInfoA
GetStdHandle
GetSystemInfo
GetSystemPowerStatus
GetSystemTimeAdjustment
GetSystemTimeAsFileTime
GetThreadContext
GetThreadPriority
GetThreadTimes
GetTickCount
GlobalAlloc
GlobalFree
GlobalLock
GlobalMemoryStatusEx
GlobalUnlock
HeapAlloc
HeapFree
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
IsDBCSLeadByteEx
IsDebuggerPresent
LeaveCriticalSection
LoadLibraryA
LoadLibraryW
LocalFree
MapViewOfFile
MulDiv
MultiByteToWideChar
OutputDebugStringA
OutputDebugStringW
Process32First
Process32Next
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadFile
ReleaseSemaphore
RemoveVectoredExceptionHandler
ResetEvent
ResumeThread
SetEnvironmentVariableA
SetErrorMode
SetEvent
SetFilePointer
SetFilePointerEx
SetLastError
SetProcessAffinityMask
SetSystemTime
SetThreadContext
SetThreadExecutionState
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SuspendThread
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TryEnterCriticalSection
UnhandledExceptionFilter
UnmapViewOfFile
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForMultipleObjects
WaitForSingleObject
WaitForSingleObjectEx
WideCharToMultiByte
WriteConsoleW
WriteFile
msvcrt
__dllonexit
__doserrno
__getmainargs
__initenv
__lconv_init
__mb_cur_max
__pioinfo
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_beginthreadex
_cexit
_endthreadex
_errno
_filelengthi64
_fileno
_fmode
_fstat64
_fullpath
_initterm
_iob
_lock
_lseeki64
_onexit
_putenv_s
_setjmp3
_stat
time
localtime
fwprintf
_stricmp
_strnicmp
_ultoa
_unlock
calloc
exit
fclose
feof
ferror
fflush
fgetpos
fgets
fopen
fprintf
fputc
fputs
fputwc
fread
free
freopen
fseek
fsetpos
ftell
fwrite
getc
getenv
getwc
islower
isspace
isupper
iswctype
isxdigit
localeconv
log10
malloc
mbstowcs
memchr
memcmp
memcpy
memmove
memset
printf
putc
puts
putwc
qsort
rand
realloc
remove
rename
rewind
setlocale
setvbuf
signal
sprintf
srand
sscanf
strcat
strchr
strcmp
strcoll
strcpy
strcspn
strerror
strftime
strlen
strncat
strncmp
strncpy
strrchr
strstr
strtok
strtol
strtoul
strxfrm
_vsnprintf
_wfopen
_write
abort
acos
atan
atof
tolower
toupper
towlower
towupper
ungetc
ungetwc
vfprintf
wcscoll
wcsftime
wcslen
wcstombs
wcsxfrm
atoi
longjmp
_write
_stricmp
_strdup
_read
_putenv
_getpid
_fileno
_fdopen
ole32
CoCreateInstance
CoInitializeEx
CoTaskMemFree
CoUninitialize
PropVariantClear
oleaut32
SysFreeString
opengl32
wglGetProcAddress
setupapi
CM_Get_Device_IDA
CM_Get_Parent
CM_Locate_DevNodeA
SetupDiDestroyDeviceInfoList
SetupDiEnumDeviceInfo
SetupDiEnumDeviceInterfaces
SetupDiGetClassDevsA
SetupDiGetDeviceInterfaceDetailA
SetupDiGetDeviceRegistryPropertyA
shell32
CommandLineToArgvW
DragAcceptFiles
DragFinish
DragQueryFileW
ExtractIconExW
SHCreateItemFromParsingName
SHGetFolderPathW
ShellExecuteW
user32
AdjustWindowRectEx
CallNextHookEx
CallWindowProcW
ChangeDisplaySettingsExW
ClientToScreen
ClipCursor
CloseClipboard
CopyImage
CreateIconFromResource
CreateIconIndirect
CreateWindowExA
CreateWindowExW
DefWindowProcW
DestroyIcon
DestroyWindow
DialogBoxIndirectParamW
DispatchMessageW
DrawTextW
EmptyClipboard
EndDialog
EnumDisplayDevicesW
EnumDisplayMonitors
EnumDisplaySettingsW
FlashWindowEx
GetAsyncKeyState
GetClassInfoExW
GetClientRect
GetClipCursor
GetClipboardData
GetClipboardSequenceNumber
GetCursorPos
GetDC
GetDesktopWindow
GetDlgItem
GetDoubleClickTime
GetFocus
GetForegroundWindow
GetKeyState
GetKeyboardLayout
GetKeyboardState
GetMenu
GetMessageExtraInfo
GetMessageW
GetMonitorInfoW
GetParent
GetPropW
GetRawInputData
GetRawInputDeviceInfoA
GetRawInputDeviceList
GetSystemMetrics
GetUpdateRect
GetWindowLongW
GetWindowRect
GetWindowTextLengthW
GetWindowTextW
IntersectRect
InvalidateRect
IsClipboardFormatAvailable
IsIconic
IsRectEmpty
KillTimer
LoadCursorW
LoadIconW
MapVirtualKeyW
MessageBoxA
OpenClipboard
PeekMessageW
PostMessageW
PostThreadMessageW
PtInRect
RegisterClassExA
RegisterClassExW
RegisterClassW
RegisterDeviceNotificationW
RegisterRawInputDevices
RegisterWindowMessageA
ReleaseCapture
ReleaseDC
RemovePropW
ScreenToClient
SendMessageW
SetCapture
SetClipboardData
SetCursor
SetCursorPos
SetFocus
SetForegroundWindow
SetLayeredWindowAttributes
SetPropW
SetTimer
SetWindowLongW
SetWindowPos
SetWindowRgn
SetWindowTextW
SetWindowsHookExW
ShowWindow
SystemParametersInfoA
SystemParametersInfoW
ToUnicode
TrackMouseEvent
TranslateMessage
UnhookWindowsHookEx
UnregisterClassA
UnregisterClassW
UnregisterDeviceNotification
ValidateRect
version
GetFileVersionInfoA
GetFileVersionInfoSizeA
VerQueryValueA
winmm
midiInAddBuffer
midiInClose
midiInGetDevCapsA
midiInGetErrorTextA
midiInGetNumDevs
midiInOpen
midiInPrepareHeader
midiInReset
midiInStart
midiInStop
midiInUnprepareHeader
midiOutClose
midiOutGetDevCapsA
midiOutGetErrorTextA
midiOutGetNumDevs
midiOutLongMsg
midiOutOpen
midiOutPrepareHeader
midiOutShortMsg
midiOutUnprepareHeader
midiStreamClose
midiStreamOpen
midiStreamOut
midiStreamPosition
midiStreamProperty
midiStreamRestart
midiStreamStop
timeBeginPeriod
timeEndPeriod
timeGetTime
timeKillEvent
timeSetEvent
waveInAddBuffer
waveInClose
waveInGetDevCapsW
waveInGetNumDevs
waveInOpen
waveInPrepareHeader
waveInReset
waveInStart
waveInUnprepareHeader
waveOutClose
waveOutGetDevCapsW
waveOutGetErrorTextW
waveOutGetNumDevs
waveOutOpen
waveOutPrepareHeader
waveOutReset
waveOutUnprepareHeader
waveOutWrite
Sections
.text Size: 4.9MB - Virtual size: 4.9MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 81KB - Virtual size: 80KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rodata Size: 9.8MB - Virtual size: 9.8MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 1.9MB - Virtual size: 1.9MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.bss Size: - Virtual size: 295.1MB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 14KB - Virtual size: 14KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.CRT Size: 512B - Virtual size: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 32B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 107KB - Virtual size: 107KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE