Static task
static1
Behavioral task
behavioral1
Sample
2024-09-12_b34444e79beda904dd2be0e1d0a4f0fb_bkransomware.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-12_b34444e79beda904dd2be0e1d0a4f0fb_bkransomware.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-12_b34444e79beda904dd2be0e1d0a4f0fb_bkransomware
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Size
8.2MB
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MD5
b34444e79beda904dd2be0e1d0a4f0fb
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SHA1
b3f8db6e7ffb1d2ded014644e743f1445d4a52fa
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SHA256
2c983967c445ecae931942707bb90da688149889f6d9895a8ba0fd9f6979eeda
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SHA512
8a678313e32e152901131508e0690621b73e1db13e1cfdcac6346561b2a1732d2c38fd929ad8128a4ca44d893b101d3dd4b63a79541b478146926b5f274258d3
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SSDEEP
196608:JsqbVwW8Od2Rh+Mro/Uj/3oOAlXMRqvIK+c:JsUVwWnMsUrjsicH+c
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-09-12_b34444e79beda904dd2be0e1d0a4f0fb_bkransomware
Files
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2024-09-12_b34444e79beda904dd2be0e1d0a4f0fb_bkransomware.exe windows:5 windows x86 arch:x86
4e7fdab5a4937ced3bda281031c13b2e
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
GetCPInfo
GetStringTypeW
GetTimeZoneInformation
GetDateFormatW
GetTimeFormatW
LCMapStringW
TerminateProcess
GetOEMCP
GetConsoleMode
ReadConsoleW
SetFilePointerEx
OutputDebugStringW
WriteConsoleW
SetEnvironmentVariableA
SetUnhandledExceptionFilter
UnhandledExceptionFilter
lstrlenA
GetACP
IsValidCodePage
GetConsoleCP
FreeEnvironmentStringsW
GetEnvironmentStringsW
QueryPerformanceCounter
GetStartupInfoW
GetStdHandle
HeapQueryInformation
ExitThread
CreateThread
GetFileType
SetStdHandle
RtlUnwind
HeapReAlloc
GetModuleHandleExW
CreateDirectoryW
IsProcessorFeaturePresent
IsDebuggerPresent
GetSystemTimeAsFileTime
VirtualQuery
VirtualAlloc
GetSystemInfo
FindResourceExW
SetErrorMode
SearchPathW
GetWindowsDirectoryW
LocalFileTimeToFileTime
GetFileSizeEx
GetFileAttributesExW
FileTimeToLocalFileTime
MoveFileW
lstrcmpiW
DuplicateHandle
UnlockFile
SetEndOfFile
LockFile
GetVolumeInformationW
FlushFileBuffers
FindFirstFileW
FindClose
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
GetLocaleInfoW
CompareStringW
GlobalFlags
VerifyVersionInfoW
VerSetConditionMask
LocalReAlloc
LocalAlloc
GlobalHandle
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSection
WritePrivateProfileStringW
GetPrivateProfileStringW
GetPrivateProfileIntW
GetCurrentThread
ResumeThread
SuspendThread
SetThreadPriority
CreateEventW
WaitForSingleObject
SetEvent
lstrcmpA
GetProfileIntW
ReplaceFileW
SetFileTime
GetTempFileNameW
GetFullPathNameW
GetFileTime
GetFileAttributesW
GetDiskFreeSpaceW
GetThreadLocale
SystemTimeToFileTime
FileTimeToSystemTime
GlobalGetAtomNameW
GlobalFindAtomW
GlobalAddAtomW
LoadLibraryA
lstrcmpW
GlobalDeleteAtom
LoadLibraryExW
GetSystemDirectoryW
EncodePointer
GetCurrentThreadId
FreeResource
OutputDebugStringA
SetLastError
CopyFileW
FormatMessageW
LocalFree
FreeLibrary
LoadLibraryW
lstrcpyW
GetShortPathNameW
lstrcpynW
ExitProcess
SetCurrentDirectoryW
GetCurrentDirectoryW
GetCurrentProcessId
GetCommandLineW
DeleteFileW
GetModuleHandleW
MulDiv
GlobalSize
GlobalReAlloc
GlobalFree
InterlockedExchange
GlobalUnlock
GlobalLock
GlobalAlloc
Sleep
MultiByteToWideChar
GetTickCount
GetTempPathW
GetTempPathA
WriteProcessMemory
GetCurrentProcess
ReadProcessMemory
VirtualProtect
GetProcAddress
GetModuleHandleA
InterlockedDecrement
InterlockedIncrement
GetModuleFileNameW
lstrlenW
FindResourceW
LoadResource
LockResource
SizeofResource
GetVersionExW
CloseHandle
CreateFileW
ReadFile
WriteFile
SetFilePointer
GetFileSize
CreateFileA
AreFileApisANSI
DeleteCriticalSection
DecodePointer
SetFileAttributesA
EnterCriticalSection
HeapSize
GetLastError
CreateDirectoryA
RaiseException
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
WideCharToMultiByte
GetProcessHeap
HeapFree
HeapAlloc
user32
SetCursorPos
MapVirtualKeyExW
IsCharLowerW
GetKeyboardLayout
GetNextDlgGroupItem
PostThreadMessageW
CharNextW
InvalidateRgn
CopyAcceleratorTableW
SetParent
EmptyClipboard
SetClipboardData
CloseClipboard
OpenClipboard
MonitorFromPoint
UnionRect
EnableScrollBar
UpdateLayeredWindow
IsMenu
SetMenuDefaultItem
GetMenuDefaultItem
NotifyWinEvent
MessageBeep
DeleteMenu
CharUpperW
IsZoomed
TrackMouseEvent
RealChildWindowFromPoint
SendDlgItemMessageA
EnumDisplayMonitors
SetLayeredWindowAttributes
GetMenuItemInfoW
DrawIconEx
DrawFocusRect
GetSysColorBrush
ShowOwnedPopups
MapDialogRect
SetWindowContextHelpId
PostQuitMessage
GetMessageW
RegisterClipboardFormatW
SetWindowRgn
DrawIcon
SetMenuItemInfoW
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
CheckMenuItem
MapVirtualKeyW
GetKeyNameTextW
ReuseDDElParam
UnpackDDElParam
InsertMenuItemW
DestroyMenu
TranslateAcceleratorW
LoadAcceleratorsW
BringWindowToTop
IsIconic
GetIconInfo
CopyImage
LoadImageW
DestroyIcon
SetRectEmpty
LoadMenuW
GetMonitorInfoW
MonitorFromWindow
WinHelpW
GetScrollInfo
SetScrollInfo
GetTopWindow
GetClassLongW
EqualRect
MapWindowPoints
AdjustWindowRectEx
RemovePropW
GetPropW
SetPropW
GetScrollRange
SetScrollRange
GetScrollPos
SetScrollPos
ScrollWindow
ValidateRect
LockWindowUpdate
TrackPopupMenu
SetMenu
GetMenu
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
SetWindowPlacement
GetWindowPlacement
IsChild
GetClassInfoExW
RegisterClassW
CallWindowProcW
GetMessageTime
PeekMessageW
RegisterWindowMessageW
UnhookWindowsHookEx
EndPaint
BeginPaint
GetLastActivePopup
GetWindowThreadProcessId
GetDesktopWindow
SetActiveWindow
GetActiveWindow
GetNextDlgTabItem
EndDialog
CreateDialogIndirectParamW
DestroyWindow
DrawStateW
IsDialogMessageW
GetWindow
GetWindowTextLengthW
GetWindowTextW
SetWindowTextW
IsWindowEnabled
SetFocus
GetDlgCtrlID
CheckDlgButton
GetDlgItem
SetWindowPos
MoveWindow
ShowWindow
RemoveMenu
InsertMenuW
GetMenuItemCount
GetSubMenu
GetMenuState
GetMenuStringW
CreateWindowExW
SetForegroundWindow
UnregisterClassW
SendMessageW
GetWindowLongW
InvalidateRect
GetSysColor
AppendMenuW
CreatePopupMenu
MessageBoxA
EnableMenuItem
GetMenuItemID
GetSystemMenu
LoadIconW
MessageBoxW
LoadBitmapW
UnregisterHotKey
RegisterHotKey
RedrawWindow
FindWindowExW
GetAsyncKeyState
SetWindowsHookExW
CallNextHookEx
CopyIcon
GetWindowRgn
DestroyCursor
HideCaret
CreateMenu
GetComboBoxInfo
TranslateMDISysAccel
DefMDIChildProcW
DefFrameProcW
DrawMenuBar
SubtractRect
WindowFromPoint
ClientToScreen
CopyRect
GetDoubleClickTime
DispatchMessageW
TranslateMessage
WaitMessage
ModifyMenuW
CreateAcceleratorTableW
GetKeyboardState
ToUnicodeEx
GetUpdateRect
SetClassLongW
GetForegroundWindow
DestroyAcceleratorTable
GetWindowRect
GetClientRect
IsWindowVisible
GetSystemMetrics
ShowScrollBar
SetWindowLongW
EnableWindow
wsprintfA
wsprintfW
GetClassNameW
EnumChildWindows
UpdateWindow
GetWindowDC
ReleaseDC
SystemParametersInfoW
GetDC
FillRect
FrameRect
DrawEdge
InflateRect
DrawTextW
SetCursor
LoadCursorW
SetRect
IsWindow
GetClassInfoW
DefWindowProcW
GetParent
IntersectRect
GetKeyState
KillTimer
GetCursorPos
ScreenToClient
IsClipboardFormatAvailable
GetMessagePos
GetFocus
PostMessageW
PtInRect
InvertRect
SetCapture
ClipCursor
SetTimer
GetCapture
ReleaseCapture
TabbedTextOutW
DrawTextExW
GrayStringW
DrawFrameControl
IsRectEmpty
OffsetRect
CharUpperBuffW
gdi32
MoveToEx
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CreateEllipticRgn
Ellipse
DPtoLP
LPtoDP
GetMapMode
SetRectRgn
GetTextColor
CreatePolygonRgn
Polygon
Polyline
CreateDIBitmap
EnumFontFamiliesW
CreateRoundRectRgn
RealizePalette
SetPixel
GetRgnBox
OffsetRgn
CreatePalette
GetPaletteEntries
GetNearestPaletteIndex
GetSystemPaletteEntries
ExtFloodFill
SetPaletteEntries
EnumFontFamiliesExW
FrameRgn
GetBoundsRect
PtInRegion
GetViewportOrgEx
SetPixelV
GetTextFaceW
IntersectClipRect
GetWindowExtEx
GetViewportExtEx
SetTextAlign
SetTextColor
SetStretchBltMode
SetROP2
SetPolyFillMode
GetLayout
SetLayout
SetMapMode
SetBkMode
SetBkColor
SelectPalette
ExtSelectClipRgn
SelectClipRgn
SaveDC
RestoreDC
GetTextCharsetInfo
DeleteDC
GetPixel
GetObjectType
GetClipBox
ExcludeClipRect
CreateRectRgn
CreatePatternBrush
CreateHatchBrush
CreateBitmap
CreateDCW
CopyMetaFileW
Rectangle
RoundRect
PatBlt
GetTextMetricsW
Escape
ExtTextOutW
TextOutW
RectVisible
PtVisible
CreateFontW
CreatePen
BitBlt
GetBkColor
GetDeviceCaps
GetCurrentObject
GetDIBColorTable
GetTextExtentPoint32W
CreateFontIndirectW
StretchBlt
CreateCompatibleBitmap
CreateDIBSection
CreateCompatibleDC
SetDIBColorTable
SelectObject
GetObjectW
GetStockObject
FillRgn
GetWindowOrgEx
CreateSolidBrush
CombineRgn
CreateRectRgnIndirect
DeleteObject
LineTo
msimg32
TransparentBlt
AlphaBlend
winspool.drv
ClosePrinter
DocumentPropertiesW
OpenPrinterW
advapi32
RegDeleteKeyW
RegQueryValueExW
RegCloseKey
RegDeleteValueW
RegCreateKeyExW
RegEnumKeyExW
RegEnumValueW
RegQueryValueW
RegEnumKeyW
RegOpenKeyExW
SetFileSecurityW
GetFileSecurityW
RegSetValueExW
shell32
Shell_NotifyIconW
SHFileOperationW
DragQueryFileW
DragFinish
SHGetMalloc
SHGetPathFromIDListW
SHGetSpecialFolderLocation
ShellExecuteW
SHAppBarMessage
SHGetFileInfoW
SHGetDesktopFolder
SHBrowseForFolderW
comctl32
ImageList_Draw
ImageList_AddMasked
_TrackMouseEvent
ImageList_GetImageInfo
InitCommonControlsEx
shlwapi
PathFindExtensionW
PathFindFileNameW
PathRemoveFileSpecW
PathIsUNCW
PathStripToRootW
PathFileExistsW
StrFormatKBSizeW
uxtheme
GetWindowTheme
GetThemeSysColor
OpenThemeData
DrawThemeBackground
CloseThemeData
IsAppThemed
GetThemeColor
GetCurrentThemeName
GetThemePartSize
IsThemeBackgroundPartiallyTransparent
DrawThemeText
DrawThemeParentBackground
ole32
CoTaskMemFree
CoInitialize
CoUninitialize
CreateStreamOnHGlobal
CoCreateInstance
IsAccelerator
OleTranslateAccelerator
OleDuplicateData
ReleaseStgMedium
CLSIDFromString
OleDraw
CoFreeUnusedLibraries
OleInitialize
OleUninitialize
OleSetClipboard
OleFlushClipboard
OleIsCurrentClipboard
OleGetClipboard
DoDragDrop
CoLockObjectExternal
RegisterDragDrop
RevokeDragDrop
CoCreateGuid
CLSIDFromProgID
CoDisconnectObject
CoInitializeEx
CoGetClassObject
OleRun
OleDestroyMenuDescriptor
OleCreateMenuDescriptor
OleLockRunning
CoRegisterMessageFilter
CoRevokeClassObject
CreateILockBytesOnHGlobal
StgOpenStorageOnILockBytes
CoTaskMemAlloc
StgCreateDocfileOnILockBytes
oleaut32
VariantCopy
SysStringLen
SysAllocString
SafeArrayCreate
SafeArrayPutElement
VariantChangeType
SafeArrayDestroy
VariantTimeToSystemTime
SystemTimeToVariantTime
VarUdateFromDate
SafeArrayAccessData
SafeArrayUnaccessData
VarDateFromStr
VariantInit
SafeArrayGetDim
SafeArrayGetElemsize
SafeArrayGetUBound
SafeArrayGetLBound
VarBstrFromDate
LoadTypeLi
OleCreateFontIndirect
SysAllocStringLen
VariantClear
SysFreeString
GetErrorInfo
oledlg
OleUIBusyW
urlmon
UrlMkSetSessionOption
gdiplus
GdipSetInterpolationMode
GdipCreateFromHDC
GdipCreateBitmapFromHBITMAP
GdipCreateBitmapFromFile
GdiplusStartup
GdipCreateBitmapFromStream
GdipGetImagePixelFormat
GdipGetImageHeight
GdipGetImageWidth
GdipGetImagePaletteSize
GdipGetImagePalette
GdipBitmapLockBits
GdipBitmapUnlockBits
GdipCreateBitmapFromScan0
GdipCloneImage
GdipAlloc
GdipFree
GdipDisposeImage
GdipGetImageGraphicsContext
GdipDeleteGraphics
GdipDrawImageI
GdiplusShutdown
GdipDrawImageRectI
wininet
InternetGetCookieExW
ws2_32
WSAGetLastError
htons
inet_addr
socket
WSACleanup
WSAStartup
getsockopt
select
connect
ioctlsocket
closesocket
oleacc
CreateStdAccessibleObject
AccessibleObjectFromWindow
LresultFromObject
imm32
ImmGetContext
ImmGetOpenStatus
ImmReleaseContext
winmm
mciGetErrorStringW
mciSendStringW
PlaySoundW
Sections
.text Size: 1.7MB - Virtual size: 1.7MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 385KB - Virtual size: 384KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 28KB - Virtual size: 152KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.vmp0 Size: 603KB - Virtual size: 603KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 142KB - Virtual size: 141KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 5.4MB - Virtual size: 5.4MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ