Static task
static1
Behavioral task
behavioral1
Sample
2024-05-31_ff668fd4ce9be7a52f17f3bc01cb9137_bkransomware.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-05-31_ff668fd4ce9be7a52f17f3bc01cb9137_bkransomware.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-31_ff668fd4ce9be7a52f17f3bc01cb9137_bkransomware
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Size
1.6MB
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MD5
ff668fd4ce9be7a52f17f3bc01cb9137
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SHA1
df1c00071deae91b0604ab3ca080091c49838c07
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SHA256
41b32be72226dff2e48d1e8b3ec8ceaf6a432b1fa33c91d17ad01f53374e906f
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SHA512
f7e9aceb4227e568a5395cde2b12b7aec05445652e2195dc82d9be123943b7460b0ce342593705fd5953bf81cfd18ddbc91b792bf478810f0545a868099cb393
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SSDEEP
49152:MLa6V6QHXLfkZuAN3jYN3vE3bLMM5GvD0fs8s:r6V6QHX7kvN3jYN3sXSD0fs8s
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-31_ff668fd4ce9be7a52f17f3bc01cb9137_bkransomware
Files
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2024-05-31_ff668fd4ce9be7a52f17f3bc01cb9137_bkransomware.exe windows:6 windows x86 arch:x86
4c6e64abced024cf0cd58827508597a9
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
GetConsoleMode
ReadConsoleW
SetFilePointerEx
OutputDebugStringW
GetCPInfo
WriteConsoleW
SetEnvironmentVariableA
GetOEMCP
GetACP
IsValidCodePage
GetTimeZoneInformation
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
FreeEnvironmentStringsW
GetEnvironmentStringsW
QueryPerformanceCounter
GetStartupInfoW
GetStdHandle
GetFileType
SetStdHandle
GetSystemTimeAsFileTime
VirtualQuery
VirtualAlloc
GetCurrentProcess
GetSystemInfo
HeapQueryInformation
IsProcessorFeaturePresent
IsDebuggerPresent
GetModuleHandleExW
GetConsoleCP
ExitThread
CreateThread
RtlUnwind
GetCommandLineW
FindResourceExW
VirtualProtect
SearchPathW
GetProfileIntW
GetTickCount
Sleep
GetTempPathW
GetTempFileNameW
VerifyVersionInfoW
VerSetConditionMask
lstrcpyW
GetWindowsDirectoryW
GetCurrentDirectoryW
SetErrorMode
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
GetLocaleInfoW
CompareStringW
GlobalFlags
LocalReAlloc
LocalAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
GetStringTypeW
ExitProcess
InitializeCriticalSection
WritePrivateProfileStringW
GetPrivateProfileStringW
GetPrivateProfileIntW
lstrcmpA
GetVersionExW
GetCurrentThread
ResumeThread
SetThreadPriority
WaitForSingleObject
FileTimeToSystemTime
GetFileTime
GetFileSizeEx
GetFileAttributesExW
GetFileAttributesW
FileTimeToLocalFileTime
MoveFileW
lstrcmpiW
DuplicateHandle
CloseHandle
WriteFile
UnlockFile
SetFilePointer
SetEndOfFile
ReadFile
LockFile
GetVolumeInformationW
GetFullPathNameW
GetFileSize
FlushFileBuffers
FindFirstFileW
FindClose
DeleteFileW
CreateFileW
GlobalGetAtomNameW
GetCurrentProcessId
GlobalFindAtomW
GlobalAddAtomW
LoadLibraryW
LoadLibraryA
lstrcmpW
GlobalDeleteAtom
LoadLibraryExW
GetProcAddress
GetModuleHandleW
GetModuleHandleA
GetModuleFileNameW
FreeResource
FreeLibrary
GetSystemDirectoryW
GetCurrentThreadId
InitializeCriticalSectionAndSpinCount
LeaveCriticalSection
EnterCriticalSection
EncodePointer
OutputDebugStringA
WideCharToMultiByte
MultiByteToWideChar
CopyFileW
FormatMessageW
MulDiv
LocalFree
GlobalFree
GlobalUnlock
GlobalLock
GlobalSize
GlobalAlloc
SetLastError
DeleteCriticalSection
InitializeCriticalSectionEx
GetProcessHeap
HeapSize
HeapFree
HeapReAlloc
HeapAlloc
GetLastError
RaiseException
DecodePointer
FindResourceW
SizeofResource
LockResource
LoadResource
SetSystemTime
LCMapStringW
user32
DrawIcon
SetCursorPos
CopyAcceleratorTableW
DestroyAcceleratorTable
CreateAcceleratorTableW
GetKeyboardState
ToUnicodeEx
MapVirtualKeyExW
IsCharLowerW
GetKeyboardLayout
WaitMessage
PostThreadMessageW
IsZoomed
GetComboBoxInfo
TrackMouseEvent
MonitorFromPoint
UpdateLayeredWindow
IsMenu
SetWindowRgn
DrawFrameControl
DrawEdge
DrawStateW
EmptyClipboard
SetClipboardData
CloseClipboard
OpenClipboard
EnumDisplayMonitors
SetLayeredWindowAttributes
NotifyWinEvent
InvertRect
HideCaret
EnableScrollBar
GetAsyncKeyState
MessageBeep
GetIconInfo
DrawIconEx
DrawFocusRect
GetNextDlgGroupItem
LockWindowUpdate
SetCapture
SetRect
WindowFromPoint
GetMenuDefaultItem
SetParent
IsRectEmpty
UnionRect
MapVirtualKeyW
GetKeyNameTextW
SendDlgItemMessageA
CopyImage
RealChildWindowFromPoint
GetSysColorBrush
ShowOwnedPopups
PostQuitMessage
GetCursorPos
TranslateMessage
GetMessageW
CharUpperW
ReuseDDElParam
UnpackDDElParam
LoadImageW
GetWindowThreadProcessId
OffsetRect
IntersectRect
SetRectEmpty
SetCursor
InvalidateRect
InsertMenuItemW
CreatePopupMenu
LoadMenuW
TranslateAcceleratorW
LoadAcceleratorsW
ReleaseCapture
BringWindowToTop
IsIconic
FillRect
ClientToScreen
EndPaint
BeginPaint
GetWindowRgn
GetWindowDC
GetDC
TabbedTextOutW
GrayStringW
DrawTextExW
DrawTextW
GetDesktopWindow
GetActiveWindow
GetNextDlgTabItem
EndDialog
CreateDialogIndirectParamW
IsDialogMessageW
SetWindowTextW
IsWindowEnabled
CheckDlgButton
SetDlgItemTextW
MoveWindow
ShowWindow
GetMonitorInfoW
MonitorFromWindow
WinHelpW
GetScrollInfo
SetScrollInfo
LoadIconW
CallNextHookEx
SetWindowsHookExW
GetWindow
GetLastActivePopup
GetTopWindow
GetClassNameW
GetClassLongW
SetWindowLongW
GetWindowLongW
PtInRect
EqualRect
MapWindowPoints
ScreenToClient
MessageBoxW
AdjustWindowRectEx
GetWindowRect
GetClientRect
GetWindowTextLengthW
GetWindowTextW
RemovePropW
GetPropW
SetPropW
ShowScrollBar
GetScrollRange
SetScrollRange
GetScrollPos
SetScrollPos
ScrollWindow
RedrawWindow
ValidateRect
SetForegroundWindow
GetForegroundWindow
SetActiveWindow
TrackPopupMenu
SetMenu
GetMenu
GetCapture
GetKeyState
SetFocus
GetDlgCtrlID
GetDlgItem
IsWindowVisible
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
SetWindowPlacement
GetWindowPlacement
SetWindowPos
DestroyWindow
IsChild
IsWindow
CreateWindowExW
GetClassInfoExW
DestroyCursor
MapDialogRect
CreateMenu
SubtractRect
GetUpdateRect
IsClipboardFormatAvailable
TranslateMDISysAccel
DefMDIChildProcW
DefFrameProcW
DrawMenuBar
FrameRect
CharUpperBuffW
RegisterClipboardFormatW
ModifyMenuW
SetMenuDefaultItem
CopyIcon
GetDoubleClickTime
ReleaseDC
SetClassLongW
GetClassInfoW
RegisterClassW
CallWindowProcW
DefWindowProcW
GetMessageTime
GetMessagePos
PeekMessageW
DispatchMessageW
RegisterWindowMessageW
LoadBitmapW
GetParent
SetMenuItemInfoW
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
CheckMenuItem
GetFocus
SendMessageW
SystemParametersInfoW
InflateRect
CopyRect
GetSysColor
GetMenuItemInfoW
DestroyMenu
GetSystemMetrics
UnhookWindowsHookEx
RemoveMenu
AppendMenuW
InsertMenuW
GetMenuItemCount
GetMenuItemID
GetSubMenu
GetMenuState
GetMenuStringW
UnregisterClassW
UpdateWindow
ExitWindowsEx
LoadCursorW
DeleteMenu
EnableMenuItem
GetSystemMenu
EnableWindow
KillTimer
SetTimer
PostMessageW
DestroyIcon
gdi32
TextOutW
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CreateCompatibleBitmap
CombineRgn
CreateRectRgnIndirect
PatBlt
SetRectRgn
DPtoLP
GetTextMetricsW
GetBkColor
CreatePalette
GetNearestPaletteIndex
GetPaletteEntries
GetSystemPaletteEntries
RealizePalette
CreateDIBitmap
EnumFontFamiliesW
GetTextCharsetInfo
SetPixel
StretchBlt
CreateDIBSection
SetDIBColorTable
CreateEllipticRgn
Ellipse
GetTextColor
MoveToEx
Polygon
Polyline
Rectangle
EnumFontFamiliesExW
GetRgnBox
OffsetRgn
CreateRoundRectRgn
RoundRect
FrameRgn
PtInRegion
SetPixelV
ExtFloodFill
SetPaletteEntries
FillRgn
GetBoundsRect
GetWindowOrgEx
LPtoDP
GetViewportOrgEx
GetTextFaceW
GetLayout
SetLayout
SetMapMode
SetPolyFillMode
SetTextAlign
CreatePolygonRgn
CopyMetaFileW
SetBkMode
SelectPalette
SelectObject
ExtSelectClipRgn
SelectClipRgn
SaveDC
RestoreDC
RectVisible
PtVisible
LineTo
IntersectClipRect
GetWindowExtEx
GetViewportExtEx
GetStockObject
GetPixel
GetObjectType
GetClipBox
ExcludeClipRect
Escape
DeleteObject
DeleteDC
CreateSolidBrush
CreateRectRgn
CreatePatternBrush
CreatePen
CreateHatchBrush
SetTextColor
SetBkColor
CreateBitmap
ExtTextOutW
GetObjectW
GetTextExtentPoint32W
CreateFontIndirectW
CreateCompatibleDC
BitBlt
GetDeviceCaps
CreateDCW
SetROP2
msimg32
AlphaBlend
TransparentBlt
winspool.drv
ClosePrinter
OpenPrinterW
DocumentPropertiesW
advapi32
RegEnumKeyExW
RegEnumValueW
RegQueryValueW
RegEnumKeyW
RegSetValueExW
RegDeleteValueW
RegDeleteKeyW
RegCreateKeyExW
RegQueryValueExW
RegOpenKeyExW
RegCloseKey
LookupPrivilegeValueW
AdjustTokenPrivileges
OpenProcessToken
shell32
SHBrowseForFolderW
DragQueryFileW
DragFinish
SHGetFileInfoW
SHGetPathFromIDListW
SHAppBarMessage
ShellExecuteW
SHGetDesktopFolder
SHGetSpecialFolderLocation
shlwapi
PathStripToRootW
PathFindExtensionW
PathFindFileNameW
StrFormatKBSizeW
PathIsUNCW
PathRemoveFileSpecW
uxtheme
DrawThemeParentBackground
GetWindowTheme
GetThemeSysColor
GetCurrentThemeName
DrawThemeText
DrawThemeBackground
IsThemeBackgroundPartiallyTransparent
GetThemeColor
IsAppThemed
OpenThemeData
CloseThemeData
GetThemePartSize
ole32
OleLockRunning
DoDragDrop
CreateStreamOnHGlobal
CoInitializeEx
CoDisconnectObject
CoCreateInstance
CoCreateGuid
CoUninitialize
ReleaseStgMedium
OleDuplicateData
CoTaskMemFree
CoTaskMemAlloc
RevokeDragDrop
RegisterDragDrop
CoLockObjectExternal
OleGetClipboard
IsAccelerator
OleTranslateAccelerator
OleDestroyMenuDescriptor
OleCreateMenuDescriptor
CoInitialize
oleaut32
SysFreeString
VarBstrFromDate
VariantCopy
VariantTimeToSystemTime
SystemTimeToVariantTime
SysStringLen
LoadTypeLi
SysAllocString
VariantChangeType
VariantClear
VariantInit
SysAllocStringLen
oleacc
CreateStdAccessibleObject
AccessibleObjectFromWindow
LresultFromObject
gdiplus
GdipSetInterpolationMode
GdipCreateFromHDC
GdipCreateBitmapFromHBITMAP
GdipDrawImageI
GdipDeleteGraphics
GdipBitmapUnlockBits
GdipBitmapLockBits
GdipCreateBitmapFromScan0
GdipCreateBitmapFromStream
GdipGetImagePaletteSize
GdipGetImagePalette
GdipGetImagePixelFormat
GdipGetImageHeight
GdipGetImageWidth
GdipGetImageGraphicsContext
GdipDisposeImage
GdipCloneImage
GdiplusStartup
GdipFree
GdipAlloc
GdiplusShutdown
GdipDrawImageRectI
imm32
ImmReleaseContext
ImmGetContext
ImmGetOpenStatus
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: 312KB - Virtual size: 311KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 24KB - Virtual size: 53KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 18KB - Virtual size: 17KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ