Static task
static1
Behavioral task
behavioral1
Sample
2024-06-03_77073630a64b85a36170bb6c52ece07c_bkransomware.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-03_77073630a64b85a36170bb6c52ece07c_bkransomware.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-03_77073630a64b85a36170bb6c52ece07c_bkransomware
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Size
17.5MB
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MD5
77073630a64b85a36170bb6c52ece07c
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SHA1
52e777af832c7ff8bc259311b9686ee2883f7dea
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SHA256
2db3b6dc8ae625451c2f7fb1934b8bd78c1463ae18e21c9d6661d7f5b9682e2c
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SHA512
d4f016fbd2c58bb35ebb0e9d3c49df80660d1b8662d7d591017da80fe71f557670ca5641f160757f7d818637b3a5e6f0a88605304f8a29000a38847ada2c3008
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SSDEEP
393216:ufuiiyHhzylFRKt+aRVxTCRO5rGnNxf+GplDRKt/hnQHZ7p1r9vR7c:ufvDpsFIrVRCRkGnNN+GpVwhnQBBR7c
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-06-03_77073630a64b85a36170bb6c52ece07c_bkransomware
Files
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2024-06-03_77073630a64b85a36170bb6c52ece07c_bkransomware.exe windows:5 windows x86 arch:x86
446e91f0c379442bef94d65c2bdcecc3
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
GetTimeZoneInformation
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetStringTypeW
GetConsoleCP
LCMapStringW
WriteConsoleW
SetEnvironmentVariableA
TerminateProcess
SetUnhandledExceptionFilter
FreeEnvironmentStringsW
UnhandledExceptionFilter
GetEnvironmentStringsW
GetStartupInfoW
GetStdHandle
SetStdHandle
GetSystemTimeAsFileTime
VirtualQuery
VirtualAlloc
GetModuleHandleExW
ExitProcess
ExitThread
CreateThread
HeapQueryInformation
RtlUnwind
IsProcessorFeaturePresent
IsDebuggerPresent
GetCommandLineW
FindResourceExW
VirtualProtect
SearchPathW
GetProfileIntW
GetTickCount
Sleep
GetTempPathW
GetTempFileNameW
VerifyVersionInfoW
VerSetConditionMask
lstrcpyW
GetWindowsDirectoryW
GlobalFindAtomW
FreeResource
GlobalDeleteAtom
ResumeThread
SetThreadPriority
GetCurrentThreadId
lstrcmpW
GlobalFlags
FreeLibrary
GetUserDefaultUILanguage
CompareStringW
GetSystemDirectoryW
EncodePointer
GlobalAddAtomW
GlobalGetAtomNameW
lstrcmpA
GetCurrentProcessId
LocalReAlloc
LocalAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
LeaveCriticalSection
EnterCriticalSection
InitializeCriticalSection
GetFileTime
GetFileSizeEx
GetFileAttributesExW
LoadLibraryA
lstrcmpiW
LoadLibraryExW
GetModuleHandleA
UnlockFile
SetEndOfFile
LockFile
GetVolumeInformationW
GetFullPathNameW
FlushFileBuffers
SetLastError
MulDiv
GlobalFree
GlobalUnlock
GlobalLock
GlobalSize
GlobalAlloc
SetCurrentDirectoryW
WaitForSingleObject
CreateProcessW
DeleteCriticalSection
DecodePointer
HeapSize
RaiseException
InitializeCriticalSectionAndSpinCount
GetProcessHeap
HeapFree
HeapAlloc
HeapReAlloc
GetFileSize
OutputDebugStringA
SetFileTime
DosDateTimeToFileTime
GetCurrentDirectoryW
SystemTimeToFileTime
GetFileType
DuplicateHandle
MultiByteToWideChar
WideCharToMultiByte
CopyFileW
GetFileAttributesW
DeleteFileW
SetFileAttributesW
FileTimeToSystemTime
FileTimeToLocalFileTime
FindClose
FindFirstFileW
ReadFile
SetFilePointer
OutputDebugStringW
GetVersionExW
GetSystemInfo
LocalFree
FormatMessageW
GetLastError
GetCurrentProcess
GetProcAddress
LoadLibraryW
GetModuleFileNameW
CreateDirectoryW
QueryPerformanceCounter
CloseHandle
WriteFile
CreateFileW
SizeofResource
LockResource
LoadResource
FindResourceW
GetModuleHandleW
user32
SetRectEmpty
DrawFocusRect
WindowFromPoint
ReleaseCapture
SetCapture
GetNextDlgGroupItem
GetMenuDefaultItem
CreatePopupMenu
SendDlgItemMessageA
GetMenuItemInfoW
DestroyMenu
GetNextDlgTabItem
EndDialog
CreateDialogIndirectParamW
InvalidateRect
KillTimer
SetTimer
DeleteMenu
SetCursor
ShowOwnedPopups
SystemParametersInfoW
CopyImage
IntersectRect
InflateRect
GetMonitorInfoW
MonitorFromWindow
WinHelpW
GetScrollInfo
SetScrollInfo
GetTopWindow
GetClassLongW
EqualRect
CopyRect
MapWindowPoints
AdjustWindowRectEx
GetClientRect
RemovePropW
GetPropW
SetPropW
ShowScrollBar
GetScrollRange
SetScrollRange
ScrollWindow
RedrawWindow
GetForegroundWindow
SetActiveWindow
TrackPopupMenu
SetMenu
GetMenu
GetCapture
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
SetWindowPlacement
GetWindowPlacement
IsChild
GetClassInfoExW
GetClassInfoW
RegisterClassW
CallWindowProcW
GetMessageTime
GetMessagePos
RegisterWindowMessageW
LoadBitmapW
SetMenuItemInfoW
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
EnableMenuItem
CheckMenuItem
SetForegroundWindow
IsIconic
PostMessageW
FillRect
ScreenToClient
GetWindowDC
TabbedTextOutW
GrayStringW
DrawTextExW
OffsetRect
IsDialogMessageW
SetWindowLongW
CheckDlgButton
GetDlgItem
SetWindowPos
MoveWindow
IsWindow
GetScrollPos
SetScrollPos
SetFocus
CallNextHookEx
SetWindowsHookExW
GetCursorPos
ValidateRect
GetKeyState
GetActiveWindow
IsWindowVisible
PeekMessageW
RealChildWindowFromPoint
GetWindow
GetClassNameW
GetDesktopWindow
PtInRect
ClientToScreen
GetWindowRect
SetWindowTextW
GetFocus
GetDlgCtrlID
DestroyIcon
GetWindowTextLengthW
GetWindowTextW
GetLastActivePopup
GetWindowThreadProcessId
GetParent
GetWindowLongW
MessageBoxW
IsWindowEnabled
EnableWindow
SendMessageW
GetSysColorBrush
GetSysColor
ReleaseDC
GetDC
UnhookWindowsHookEx
DrawMenuBar
FrameRect
CharUpperW
RemoveMenu
GetSystemMetrics
LoadAcceleratorsW
GetMessageW
AppendMenuW
InsertMenuW
GetMenuItemCount
GetMenuItemID
GetSubMenu
GetMenuState
GetMenuStringW
PostQuitMessage
EndPaint
BeginPaint
DefWindowProcW
DestroyWindow
UpdateWindow
ShowWindow
CreateWindowExW
LoadCursorW
LoadIconW
IsRectEmpty
LoadImageW
DrawIconEx
GetIconInfo
MessageBeep
GetAsyncKeyState
EnableScrollBar
DrawIcon
GetWindowRgn
DestroyCursor
MapDialogRect
CreateMenu
SubtractRect
GetUpdateRect
IsClipboardFormatAvailable
TranslateMDISysAccel
DefFrameProcW
DefMDIChildProcW
TranslateAcceleratorW
TranslateMessage
DispatchMessageW
CharUpperBuffW
RegisterClipboardFormatW
HideCaret
SetMenuDefaultItem
CopyIcon
GetDoubleClickTime
SetClassLongW
LockWindowUpdate
SetParent
SetRect
SetCursorPos
CopyAcceleratorTableW
DestroyAcceleratorTable
CreateAcceleratorTableW
GetKeyboardState
ToUnicodeEx
MapVirtualKeyExW
IsCharLowerW
GetKeyboardLayout
WaitMessage
PostThreadMessageW
GetSystemMenu
IsZoomed
GetComboBoxInfo
TrackMouseEvent
ReuseDDElParam
UnpackDDElParam
InsertMenuItemW
BringWindowToTop
MonitorFromPoint
UpdateLayeredWindow
IsMenu
UnionRect
SetWindowRgn
DrawFrameControl
DrawEdge
DrawStateW
EmptyClipboard
SetClipboardData
CloseClipboard
OpenClipboard
EnumDisplayMonitors
SetLayeredWindowAttributes
LoadMenuW
GetKeyNameTextW
MapVirtualKeyW
NotifyWinEvent
DrawTextW
InvertRect
ModifyMenuW
gdi32
GetStockObject
GetViewportExtEx
GetWindowExtEx
IntersectClipRect
LineTo
PtVisible
RectVisible
RestoreDC
SaveDC
SelectClipRgn
ExtSelectClipRgn
SelectObject
SelectPalette
SetBkColor
SetBkMode
SetMapMode
SetLayout
GetLayout
SetPolyFillMode
SetROP2
SetTextColor
SetTextAlign
GetObjectW
MoveToEx
TextOutW
ExtTextOutW
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CombineRgn
CreateFontIndirectW
CreateRectRgnIndirect
PatBlt
GetPixel
DPtoLP
GetTextExtentPoint32W
GetTextMetricsW
CreatePalette
GetNearestPaletteIndex
GetPaletteEntries
GetSystemPaletteEntries
RealizePalette
GetBkColor
CreateCompatibleBitmap
CreateDIBitmap
EnumFontFamiliesW
GetTextCharsetInfo
SetPixel
StretchBlt
CreateDIBSection
SetDIBColorTable
CreateEllipticRgn
Ellipse
GetTextColor
CreatePolygonRgn
Polygon
Polyline
Rectangle
EnumFontFamiliesExW
GetRgnBox
OffsetRgn
CreateRoundRectRgn
RoundRect
FrameRgn
PtInRegion
SetPixelV
ExtFloodFill
SetPaletteEntries
FillRgn
GetBoundsRect
GetWindowOrgEx
LPtoDP
GetViewportOrgEx
GetTextFaceW
GetObjectType
GetClipBox
ExcludeClipRect
Escape
DeleteDC
CreateSolidBrush
CreateRectRgn
CreatePatternBrush
CreatePen
CreateHatchBrush
CreateCompatibleDC
CreateBitmap
BitBlt
DeleteObject
GetDeviceCaps
SetRectRgn
CopyMetaFileW
CreateDCW
msimg32
AlphaBlend
TransparentBlt
winspool.drv
OpenPrinterW
DocumentPropertiesW
ClosePrinter
advapi32
RegSetValueExW
RegEnumKeyExW
RegDeleteValueW
RegDeleteKeyW
RegCreateKeyExW
RegQueryValueExW
RegOpenKeyExW
RegCloseKey
shell32
DragFinish
SHGetSpecialFolderPathW
SHBrowseForFolderW
SHGetPathFromIDListW
SHGetFileInfoW
SHGetSpecialFolderLocation
SHAppBarMessage
ShellExecuteW
DragQueryFileW
SHGetDesktopFolder
shlwapi
PathIsUNCW
PathStripToRootW
PathFindExtensionW
PathFindFileNameW
PathRemoveFileSpecW
StrFormatKBSizeW
uxtheme
GetThemePartSize
GetWindowTheme
GetThemeSysColor
IsThemeBackgroundPartiallyTransparent
DrawThemeText
DrawThemeParentBackground
OpenThemeData
CloseThemeData
DrawThemeBackground
GetThemeColor
GetCurrentThemeName
IsAppThemed
ole32
DoDragDrop
CreateStreamOnHGlobal
CoInitializeEx
CoInitialize
CoUninitialize
CoCreateInstance
CoDisconnectObject
ReleaseStgMedium
OleDuplicateData
OleLockRunning
CoTaskMemFree
CoTaskMemAlloc
OleCreateMenuDescriptor
OleDestroyMenuDescriptor
OleTranslateAccelerator
IsAccelerator
OleGetClipboard
CoLockObjectExternal
RevokeDragDrop
RegisterDragDrop
oleaut32
VariantClear
VariantCopy
VariantChangeType
VarBstrFromDate
SysAllocString
VariantInit
VariantTimeToSystemTime
SystemTimeToVariantTime
SysStringLen
SysAllocStringLen
LoadTypeLi
SysFreeString
oleacc
LresultFromObject
AccessibleObjectFromWindow
CreateStdAccessibleObject
gdiplus
GdipSetInterpolationMode
GdipCreateFromHDC
GdipCreateBitmapFromHBITMAP
GdipDrawImageI
GdipDeleteGraphics
GdipBitmapUnlockBits
GdipBitmapLockBits
GdipCreateBitmapFromScan0
GdipCreateBitmapFromStream
GdipGetImagePaletteSize
GdipGetImagePalette
GdipGetImagePixelFormat
GdipGetImageHeight
GdipGetImageWidth
GdipGetImageGraphicsContext
GdipDisposeImage
GdipCloneImage
GdiplusStartup
GdipFree
GdipAlloc
GdiplusShutdown
GdipDrawImageRectI
imm32
ImmGetContext
ImmGetOpenStatus
ImmReleaseContext
winmm
PlaySoundW
Sections
.text Size: 1.3MB - Virtual size: 1.3MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 315KB - Virtual size: 315KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 23KB - Virtual size: 53KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 15.8MB - Virtual size: 15.8MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 113KB - Virtual size: 113KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ