2024-07-03_efa4cd8233b8872750fb9454f40bf341_bkransomware

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General

Target

2024-07-03_efa4cd8233b8872750fb9454f40bf341_bkransomware
Size

3.2MB
MD5

efa4cd8233b8872750fb9454f40bf341
SHA1

a25e0cc0ea7d497bb91523a802888f0695231ed1
SHA256

0d2135b4a922be9f7a63f5d9628e6a5fe8afef833cd9287c4dfa8e0ffb8ff84e
SHA512

89a11806b6b253149e5e672de314cc68ad3eb728ee47111f3f1951aadb030e07309bed6bef60486180c6cdb1af5076350854f0e2496bc8da0a2aa8be5a16e150
SSDEEP

98304:qJ5h4HoaYdW9uY/QwLvW0GJmY0c7ai+FLOAkGkzdnEVomFHKnP1:mATblY0c7WFLOyomFHKnP1

Score

1^/10

Malware Config

Signatures

Files

2024-07-03_efa4cd8233b8872750fb9454f40bf341_bkransomware
.exe windows:5 windows x86 arch:x86

dbd8f7bcbb58350f8f7f880cd5bf241e

Code Sign

04:7a:55
Certificate

Issuer

CN=Certum CA,O=Unizeto Sp. z o.o.,C=PL

Not Before

03/03/2009, 12:58

Not After

03/03/2024, 12:58

Subject

CN=Certum Time-Stamping Authority,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Extended Key Usages

ExtKeyUsageTimeStamping

43:6b:88:d8:3f:d4:0f:d7:f2:4e:1d:d2:22:85:f2:7e
Certificate

Issuer

CN=Certum Trusted Network CA,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Not Before

20/09/2011, 11:04

Not After

20/09/2026, 23:59

Subject

CN=Certum Code Signing CA,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

61:3b:c7:91:00:00:00:00:00:34
Certificate

Issuer

CN=Microsoft Code Verification Root,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

15/04/2011, 20:15

Not After

15/04/2021, 20:25

Subject

CN=Certum Trusted Network CA,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0f:a3:77:c5:cd:7d:b6:bb:98:13:66:06:2d:06:3b:10
Certificate

Issuer

CN=Certum Code Signing CA,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Not Before

01/10/2013, 11:34

Not After

01/10/2015, 11:34

Subject

CN=ArcaBit Sp. z o.o,O=ArcaBit Sp. z o.o,C=PL,1.2.840.113549.1.9.1=#0c1474656368616c65727440617263616269742e706c

Extended Key Usages

ExtKeyUsageCodeSigning
ExtKeyUsageMicrosoftKernelCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageKeyEncipherment

c7:0e:5c:30:3a:cb:89:26:23:7c:12:86:68:31:27:91:8a:d0:7d:ba
Signer

Actual PE Digest

c7:0e:5c:30:3a:cb:89:26:23:7c:12:86:68:31:27:91:8a:d0:7d:ba

Digest Algorithm

sha1

PE Digest Matches

true

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

PDB Paths

e:\arcabit_src\project\2015\arcadc\Release\arcadc.pdb

Imports

devctl

devctl_set_device_filter
devctl_finish
devctl_refresh
devctl_init

kernel32

IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetStringTypeW
GetTimeZoneInformation
LCMapStringW
SetEnvironmentVariableA
SizeofResource
LockResource
LoadResource
FindResourceW
MultiByteToWideChar
GetCurrentThreadId
OutputDebugStringW
GetLastError
CloseHandle
OpenMutexW
CreateMutexW
DeleteCriticalSection
InitializeCriticalSection
LeaveCriticalSection
TerminateProcess
TerminateThread
EnterCriticalSection
SetEvent
GetSystemInfo
DisconnectNamedPipe
FlushFileBuffers
WriteFile
ReadFile
PeekNamedPipe
ConnectNamedPipe
Sleep
LocalAlloc
CreateNamedPipeW
GetCurrentProcessId
CreateEventW
GetTickCount
WaitForSingleObject
ResumeThread
GetProcAddress
FreeLibrary
LoadLibraryW
OpenProcess
GetModuleFileNameW
SetNamedPipeHandleState
CreateFileW
HeapReAlloc
HeapAlloc
HeapFree
SetUnhandledExceptionFilter
UnhandledExceptionFilter
FreeEnvironmentStringsW
GetEnvironmentStringsW
QueryPerformanceCounter
GetStartupInfoW
GetStdHandle
SetStdHandle
GetSystemTimeAsFileTime
VirtualQuery
VirtualAlloc
HeapQueryInformation
ExitThread
CreateThread
GetModuleHandleExW
ExitProcess
RtlUnwind
ReadConsoleW
IsProcessorFeaturePresent
IsDebuggerPresent
GetFileType
GetConsoleMode
GetConsoleCP
GetProcessHeap
WriteConsoleW
SetFilePointerEx
LocalFree
InitializeCriticalSectionAndSpinCount
RaiseException
GetCommandLineW
FindResourceExW
GetWindowsDirectoryW
SearchPathW
GetProfileIntW
VirtualProtect
GetTempPathW
GetTempFileNameW
GetFileTime
GetFileSizeEx
GetFileAttributesExW
FileTimeToLocalFileTime
SetErrorMode
lstrcmpiW
GetCurrentProcess
DuplicateHandle
UnlockFile
SetFilePointer
SetEndOfFile
LockFile
GetVolumeInformationW
GetFullPathNameW
FindFirstFileW
FindClose
GetFileSize
GetFileAttributesW
VerifyVersionInfoW
VerSetConditionMask
DeleteFileW
GlobalFlags
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
GetLocaleInfoW
CompareStringW
GetCurrentDirectoryW
GetThreadLocale
FileTimeToSystemTime
GlobalGetAtomNameW
LocalReAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
GlobalFindAtomW
GetSystemDirectoryW
EncodePointer
GlobalAddAtomW
WritePrivateProfileStringW
GetPrivateProfileStringW
GetPrivateProfileIntW
SuspendThread
SetThreadPriority
LoadLibraryA
GetModuleHandleW
GetModuleHandleA
HeapSize
OutputDebugStringA
lstrcpyW
FreeResource
lstrcmpW
lstrcmpA
GlobalDeleteAtom
LoadLibraryExW
GetVersionExW
GetCurrentThread
WideCharToMultiByte
SetLastError
CopyFileW
FormatMessageW
MulDiv
GlobalFree
GlobalUnlock
GlobalLock
GlobalSize
GlobalAlloc
DecodePointer

user32

MapVirtualKeyW
GetKeyboardState
GetKeyboardLayout
ToUnicodeEx
RegisterClipboardFormatW
ReuseDDElParam
UnpackDDElParam
InsertMenuItemW
TranslateAcceleratorW
LoadAcceleratorsW
UpdateLayeredWindow
SendDlgItemMessageA
GetUpdateRect
SetClassLongW
DestroyAcceleratorTable
ModifyMenuW
IsMenu
SetMenuDefaultItem
GetMenuDefaultItem
CopyIcon
GetIconInfo
GetDoubleClickTime
EnableScrollBar
LockWindowUpdate
CreatePopupMenu
BringWindowToTop
UnionRect
SetCursorPos
NotifyWinEvent
LoadMenuW
GetAsyncKeyState
CharUpperW
IsZoomed
TrackMouseEvent
LoadImageW
DestroyIcon
EmptyClipboard
SetClipboardData
CloseClipboard
OpenClipboard
MonitorFromPoint
SetParent
EnumDisplayMonitors
SetRectEmpty
SetLayeredWindowAttributes
MessageBeep
GetNextDlgGroupItem
IntersectRect
SetRect
InvalidateRgn
CopyAcceleratorTableW
CharNextW
KillTimer
SetTimer
RealChildWindowFromPoint
DeleteMenu
CopyImage
WindowFromPoint
ReleaseCapture
SetCapture
WaitMessage
LoadCursorW
IsDialogMessageW
CheckDlgButton
MoveWindow
ShowWindow
GetMonitorInfoW
MonitorFromWindow
WinHelpW
GetScrollInfo
SetScrollInfo
GetTopWindow
GetClassLongW
CreateAcceleratorTableW
EqualRect
DrawMenuBar
GetWindowTextLengthW
GetWindowTextW
RemovePropW
GetPropW
SetPropW
ShowScrollBar
GetScrollRange
SetScrollRange
GetScrollPos
SetScrollPos
ScrollWindow
SetForegroundWindow
GetForegroundWindow
TrackPopupMenu
SetMenu
GetMenu
GetCapture
SetFocus
GetDlgCtrlID
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
SetWindowPlacement
GetWindowPlacement
IsChild
CreateWindowExW
GetClassInfoExW
GetClassInfoW
RegisterClassW
CallWindowProcW
DefWindowProcW
GetMessageTime
GetMessagePos
SystemParametersInfoW
CopyRect
GetMenuItemInfoW
DestroyMenu
GetClassNameW
InvalidateRect
UpdateWindow
SetCursor
ShowOwnedPopups
ValidateRect
GetKeyState
GetMessageW
LoadBitmapW
SetMenuItemInfoW
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
EnableMenuItem
CheckMenuItem
CallNextHookEx
UnhookWindowsHookEx
SetWindowsHookExW
PtInRect
GetCursorPos
ScreenToClient
ClientToScreen
EndPaint
BeginPaint
ReleaseDC
GetWindowDC
GetDC
TabbedTextOutW
GrayStringW
DrawTextExW
DrawTextW
GetLastActivePopup
GetWindowThreadProcessId
MessageBoxW
GetDesktopWindow
GetWindowLongW
SetActiveWindow
IsWindowEnabled
GetActiveWindow
GetNextDlgTabItem
GetDlgItem
EndDialog
CreateDialogIndirectParamW
GetKeyNameTextW
SubtractRect
CharUpperBuffW
FrameRect
IsClipboardFormatAvailable
InvertRect
HideCaret
GetWindowRgn
DestroyCursor
DestroyWindow
IsWindow
CreateMenu
GetComboBoxInfo
TranslateMDISysAccel
DefMDIChildProcW
SetWindowLongW
DefFrameProcW
DrawIconEx
IsRectEmpty
OffsetRect
MapVirtualKeyExW
IsCharLowerW
AdjustWindowRectEx
PostThreadMessageW
InflateRect
FillRect
DrawFocusRect
GetSysColorBrush
GetSysColor
MapWindowPoints
GetWindowRect
RedrawWindow
SetWindowRgn
DrawStateW
GetFocus
IsWindowVisible
DrawFrameControl
DrawEdge
RegisterWindowMessageW
MapDialogRect
GetWindow
GetParent
SetWindowContextHelpId
SetWindowPos
PostQuitMessage
PostMessageW
RemoveMenu
InsertMenuW
GetMenuItemCount
GetMenuItemID
GetSubMenu
GetMenuState
GetMenuStringW
UnregisterClassW
PeekMessageW
TranslateMessage
DispatchMessageW
EnableWindow
DrawIcon
GetClientRect
GetSystemMetrics
IsIconic
SendMessageW
AppendMenuW
GetSystemMenu
LoadIconW
SetWindowTextW

gdi32

DeleteObject
Escape
ExcludeClipRect
GetClipBox
GetObjectType
GetPixel
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
SetViewportExtEx
SetViewportOrgEx
CreatePatternBrush
SetWindowOrgEx
OffsetViewportOrgEx
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CreateFontIndirectW
GetRgnBox
GetMapMode
SetRectRgn
DPtoLP
CreateCompatibleBitmap
CreateDIBitmap
EnumFontFamiliesW
GetTextCharsetInfo
RealizePalette
SetPixel
StretchBlt
CreateDIBSection
SetDIBColorTable
CreateRoundRectRgn
Rectangle
OffsetRgn
RoundRect
CreatePalette
GetPaletteEntries
GetNearestPaletteIndex
GetSystemPaletteEntries
EnumFontFamiliesExW
ExtFloodFill
SetPaletteEntries
FillRgn
FrameRgn
GetBoundsRect
PtInRegion
GetViewportOrgEx
LPtoDP
GetWindowOrgEx
SetPixelV
GetTextFaceW
CreatePen
CreateCompatibleDC
CreateBitmap
BitBlt
GetTextMetricsW
Polyline
Polygon
CreatePolygonRgn
ExtTextOutW
PatBlt
GetTextExtentPoint32W
GetTextColor
GetBkColor
Ellipse
CreateSolidBrush
CreateRectRgnIndirect
CreateRectRgn
CreateHatchBrush
CreateEllipticRgn
CombineRgn
GetDeviceCaps
CreateDCW
CopyMetaFileW
SetWindowExtEx
DeleteDC

msimg32

AlphaBlend
TransparentBlt

winspool.drv

ClosePrinter
OpenPrinterW
DocumentPropertiesW

advapi32

RegDeleteKeyW
RegQueryValueExW
RegOpenKeyExW
RegSetValueExW
RegCreateKeyExW
RegEnumKeyExW
RegEnumValueW
RegQueryValueW
RegEnumKeyW
RegDeleteValueW
RegCloseKey
AllocateAndInitializeSid
GetLengthSid
InitializeAcl
AddAccessAllowedAce
InitializeSecurityDescriptor
SetSecurityDescriptorDacl
FreeSid

shell32

DragQueryFileW
SHGetMalloc
SHGetPathFromIDListW
SHGetSpecialFolderLocation
SHBrowseForFolderW
SHGetDesktopFolder
ShellExecuteW
DragFinish
ShellExecuteExW
SHGetFileInfoW
SHAppBarMessage

comctl32

InitCommonControlsEx

shlwapi

PathFindFileNameW
PathIsUNCW
PathStripToRootW
StrFormatKBSizeW
PathFindExtensionW
PathRemoveFileSpecW

uxtheme

IsAppThemed
GetWindowTheme
GetThemeSysColor
IsThemeBackgroundPartiallyTransparent
OpenThemeData
CloseThemeData
DrawThemeBackground
GetThemeColor
GetCurrentThemeName
DrawThemeText
GetThemePartSize
DrawThemeParentBackground

ole32

OleFlushClipboard
OleUninitialize
OleInitialize
CoFreeUnusedLibraries
CreateStreamOnHGlobal
CreateILockBytesOnHGlobal
StgOpenStorageOnILockBytes
StgCreateDocfileOnILockBytes
CoGetClassObject
CoDisconnectObject
CoInitialize
CoCreateInstance
CLSIDFromString
CoCreateGuid
CoUninitialize
OleIsCurrentClipboard
ReleaseStgMedium
OleDuplicateData
CoTaskMemFree
CoTaskMemAlloc
IsAccelerator
OleTranslateAccelerator
OleDestroyMenuDescriptor
OleCreateMenuDescriptor
DoDragDrop
OleGetClipboard
CoLockObjectExternal
RegisterDragDrop
CoRegisterMessageFilter
CoRevokeClassObject
CoInitializeEx
OleLockRunning
CLSIDFromProgID
RevokeDragDrop

oleaut32

SysFreeString
OleCreateFontIndirect
VarBstrFromDate
VariantCopy
SafeArrayDestroy
VariantTimeToSystemTime
SystemTimeToVariantTime
SysStringLen
LoadTypeLi
VariantChangeType
VariantClear
VariantInit
SysAllocStringLen
SysAllocString

oledlg

OleUIBusyW

gdiplus

GdipSetInterpolationMode
GdipCreateFromHDC
GdipCreateBitmapFromHBITMAP
GdipDrawImageI
GdipDeleteGraphics
GdipBitmapUnlockBits
GdipBitmapLockBits
GdipCreateBitmapFromScan0
GdipCreateBitmapFromStream
GdipGetImagePaletteSize
GdipGetImagePalette
GdipGetImagePixelFormat
GdipGetImageHeight
GdipGetImageWidth
GdipGetImageGraphicsContext
GdipDisposeImage
GdipCloneImage
GdiplusStartup
GdipFree
GdipAlloc
GdiplusShutdown
GdipDrawImageRectI

psapi

EnumProcesses
EnumProcessModules
GetModuleBaseNameW

oleacc

CreateStdAccessibleObject
AccessibleObjectFromWindow
LresultFromObject

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: 333KB - Virtual size: 332KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 26KB - Virtual size: 56KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1.3MB - Virtual size: 1.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 120KB - Virtual size: 120KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

dbd8f7bcbb58350f8f7f880cd5bf241e

Code Sign

04:7a:55Certificate

Extended Key Usages

43:6b:88:d8:3f:d4:0f:d7:f2:4e:1d:d2:22:85:f2:7eCertificate

Extended Key Usages

Key Usages

61:3b:c7:91:00:00:00:00:00:34Certificate

Key Usages

0f:a3:77:c5:cd:7d:b6:bb:98:13:66:06:2d:06:3b:10Certificate

Extended Key Usages

Key Usages

c7:0e:5c:30:3a:cb:89:26:23:7c:12:86:68:31:27:91:8a:d0:7d:baSigner

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

devctl

kernel32

user32

gdi32

msimg32

winspool.drv

advapi32

shell32

comctl32

shlwapi

uxtheme

ole32

oleaut32

oledlg

gdiplus

psapi

oleacc

imm32

winmm

Sections

.text Size: 1.3MB - Virtual size: 1.3MB

.rdata Size: 333KB - Virtual size: 332KB

.data Size: 26KB - Virtual size: 56KB

.rsrc Size: 1.3MB - Virtual size: 1.3MB

.reloc Size: 120KB - Virtual size: 120KB

04:7a:55
Certificate

43:6b:88:d8:3f:d4:0f:d7:f2:4e:1d:d2:22:85:f2:7e
Certificate

61:3b:c7:91:00:00:00:00:00:34
Certificate

0f:a3:77:c5:cd:7d:b6:bb:98:13:66:06:2d:06:3b:10
Certificate

c7:0e:5c:30:3a:cb:89:26:23:7c:12:86:68:31:27:91:8a:d0:7d:ba
Signer

.text
Size: 1.3MB - Virtual size: 1.3MB

.rdata
Size: 333KB - Virtual size: 332KB

.data
Size: 26KB - Virtual size: 56KB

.rsrc
Size: 1.3MB - Virtual size: 1.3MB

.reloc
Size: 120KB - Virtual size: 120KB