Static task
static1
Behavioral task
behavioral1
Sample
2024-05-29_34e67875036010757197c94ac0d58303_bkransomware.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-05-29_34e67875036010757197c94ac0d58303_bkransomware.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-29_34e67875036010757197c94ac0d58303_bkransomware
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Size
907KB
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MD5
34e67875036010757197c94ac0d58303
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SHA1
0db8d0e05f1064991735c68294e9fd688d496228
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SHA256
58a70a7b00b149fb38a8aac44c92399e1a6e5d18de9d163e8490e1e0a636a403
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SHA512
7693b4b596da33762c04a80822307969ded0b6fe2d051c88c17952c3cc74fd00730ed9ae840baf6d8a29d13f9307b80468bf4c68ef65b329d1dde2c1b2e2191d
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SSDEEP
12288:Zg9WrReZI9vzAzzwVJjLtaTBJ6lPc6SfR/Axjjv2iiux8JGyP:ZtgavzIsDsOcMM3ux8JGy
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-29_34e67875036010757197c94ac0d58303_bkransomware
Files
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2024-05-29_34e67875036010757197c94ac0d58303_bkransomware.exe windows:5 windows x86 arch:x86
ba8e630c781e811833cc38f8dc0ceec6
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
wininet
InternetOpenW
InternetCloseHandle
HttpOpenRequestW
HttpQueryInfoW
InternetSetOptionW
HttpSendRequestW
InternetConnectW
InternetReadFile
InternetCanonicalizeUrlW
kernel32
GetUserDefaultLCID
FindClose
FindFirstFileW
FlushFileBuffers
GetFileSize
GetVolumeInformationW
LockFile
SetEndOfFile
SetFilePointer
UnlockFile
DuplicateHandle
GetThreadLocale
FileTimeToSystemTime
FileTimeToLocalFileTime
GetFileAttributesExW
GetFileSizeEx
SetErrorMode
CreateThread
IsDebuggerPresent
IsProcessorFeaturePresent
RtlUnwind
GetSystemInfo
VirtualAlloc
VirtualProtect
VirtualQuery
GetModuleHandleExW
AreFileApisANSI
HeapQueryInformation
GetStdHandle
GetFileType
GetStartupInfoW
QueryPerformanceCounter
GetEnvironmentStringsW
FreeEnvironmentStringsW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetConsoleMode
ReadConsoleW
IsValidCodePage
GetOEMCP
GetCPInfo
GetStringTypeW
GetTimeZoneInformation
OutputDebugStringW
LCMapStringW
IsValidLocale
EnumSystemLocalesW
GetConsoleCP
SetFilePointerEx
SetStdHandle
WriteConsoleW
SetEnvironmentVariableA
GetFullPathNameW
GetFileTime
GlobalGetAtomNameW
LocalReAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
CompareStringW
GlobalFlags
FormatMessageW
GetTickCount
WritePrivateProfileStringW
GetPrivateProfileStringW
GetPrivateProfileIntW
lstrcmpA
MulDiv
GlobalAlloc
GlobalFree
GlobalUnlock
GlobalLock
GlobalFindAtomW
GlobalAddAtomW
lstrcmpW
GlobalDeleteAtom
LoadLibraryExW
FreeResource
FreeLibrary
GetSystemDirectoryW
GetCurrentThreadId
EncodePointer
LoadLibraryA
GetModuleHandleA
SetLastError
OutputDebugStringA
GetACP
GetLongPathNameW
GetTempPathW
GetCurrentProcessId
GlobalMemoryStatusEx
IsWow64Process
LocalAlloc
GetProcAddress
GetVersionExW
ReadProcessMemory
GetLocaleInfoW
LoadLibraryW
GetCurrentThread
GetCurrentProcess
GetNativeSystemInfo
GetComputerNameA
CreateProcessW
GetFileAttributesW
CreateDirectoryExW
DeviceIoControl
GetDiskFreeSpaceW
GetLogicalDrives
GetDriveTypeW
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSection
DeleteFileW
ReadFile
GetModuleHandleW
MultiByteToWideChar
WideCharToMultiByte
LocalFree
GetCommandLineW
CloseHandle
CreateToolhelp32Snapshot
Process32NextW
WaitForMultipleObjects
LockResource
Process32FirstW
ExitThread
CreateFileW
TerminateProcess
GetExitCodeProcess
SizeofResource
OpenProcess
WriteFile
WaitForSingleObject
InterlockedDecrement
InterlockedIncrement
LoadResource
FindResourceW
ExitProcess
GetModuleFileNameW
Sleep
DeleteCriticalSection
DecodePointer
HeapSize
GetLastError
RaiseException
InitializeCriticalSectionAndSpinCount
GetProcessHeap
HeapFree
HeapAlloc
HeapReAlloc
GetSystemTimeAsFileTime
user32
GetNextDlgGroupItem
MessageBeep
PostThreadMessageW
InflateRect
GetMenuItemInfoW
DestroyMenu
GetSysColorBrush
RealChildWindowFromPoint
WindowFromPoint
EndPaint
BeginPaint
GetWindowDC
TabbedTextOutW
GrayStringW
DrawTextExW
DrawTextW
LoadMenuW
RegisterClipboardFormatW
TranslateMessage
GetMessageW
MapDialogRect
SetWindowContextHelpId
ShowOwnedPopups
PostQuitMessage
IsRectEmpty
OffsetRect
FillRect
ClientToScreen
GetCursorPos
SetWindowRgn
DrawIcon
KillTimer
SetTimer
ReleaseCapture
InvalidateRect
IsIconic
IsDialogMessageW
MoveWindow
GetDesktopWindow
GetActiveWindow
GetNextDlgTabItem
EndDialog
CreateDialogIndirectParamW
GetMonitorInfoW
MonitorFromWindow
WinHelpW
ReuseDDElParam
SetScrollInfo
CallNextHookEx
UnhookWindowsHookEx
SetWindowsHookExW
GetWindow
GetLastActivePopup
GetTopWindow
GetClassNameW
GetClassLongW
PtInRect
EqualRect
CopyRect
GetSysColor
ScreenToClient
MessageBoxW
AdjustWindowRectEx
GetWindowTextLengthW
ShowScrollBar
GetScrollRange
SetScrollRange
GetScrollPos
SetScrollPos
ScrollWindow
RedrawWindow
ValidateRect
SetForegroundWindow
GetForegroundWindow
SetActiveWindow
UpdateWindow
TrackPopupMenu
GetMenuItemCount
GetMenuItemID
GetSubMenu
SetMenu
GetMenu
GetCapture
GetKeyState
GetDlgCtrlID
IsWindowVisible
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
DestroyWindow
IsChild
GetClassInfoExW
GetClassInfoW
RegisterClassW
DefWindowProcW
GetMessageTime
GetMessagePos
PeekMessageW
DispatchMessageW
RegisterWindowMessageW
IsWindowEnabled
SetFocus
IsWindow
LoadBitmapW
SetMenuItemInfoW
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
EnableMenuItem
CheckMenuItem
GetFocus
SendDlgItemMessageA
UnpackDDElParam
InsertMenuItemW
CreatePopupMenu
TranslateAcceleratorW
LoadAcceleratorsW
BringWindowToTop
CharNextW
CharUpperW
SetCursor
RemovePropW
SetRectEmpty
IntersectRect
SetRect
InvalidateRgn
CopyAcceleratorTableW
GetScrollInfo
LoadCursorW
LoadIconW
GetWindowRect
GetClientRect
SetPropW
GetWindowLongW
SetWindowLongW
SetWindowPos
ShowWindow
CreateWindowExW
GetPropW
CallWindowProcW
GetDC
SystemParametersInfoW
ReleaseDC
GetSystemMetrics
wsprintfW
GetWindowTextW
GetDlgItem
SetWindowTextW
LoadStringW
EnumWindows
SendMessageW
GetWindowThreadProcessId
PostMessageW
GetParent
EnableWindow
UnregisterClassW
MapWindowPoints
SetCapture
gdi32
TextOutW
ExtTextOutW
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
ScaleViewportExtEx
CreateRectRgnIndirect
GetRgnBox
CreateCompatibleBitmap
GetBkColor
GetTextColor
GetMapMode
ScaleWindowExtEx
SetBkMode
ExtSelectClipRgn
SetMapMode
CreateCompatibleDC
BitBlt
SetTextColor
SetBkColor
CreateBitmap
GetStockObject
GetObjectW
GetTextExtentPoint32W
GetTextMetricsW
CreateFontIndirectW
DeleteObject
SelectObject
SaveDC
RestoreDC
RectVisible
PtVisible
GetWindowExtEx
GetViewportExtEx
GetPixel
GetDeviceCaps
GetClipBox
Escape
CreateSolidBrush
CreatePatternBrush
LPtoDP
CreateDIBSection
Ellipse
DeleteDC
CreateEllipticRgn
comdlg32
GetSaveFileNameW
winspool.drv
ClosePrinter
OpenPrinterW
DocumentPropertiesW
advapi32
AllocateAndInitializeSid
RegEnumValueW
RegQueryValueW
RegEnumKeyW
RegDeleteValueW
RegCreateKeyExW
CheckTokenMembership
FreeSid
GetUserNameA
GetTokenInformation
OpenThreadToken
OpenProcessToken
RegSetValueExW
RegCloseKey
RegEnumKeyExW
RegOpenKeyExW
RegOpenCurrentUser
RegDeleteKeyW
RegQueryInfoKeyW
RegQueryValueExW
shell32
ShellExecuteExW
CommandLineToArgvW
SHGetFolderPathW
ShellExecuteW
DragFinish
DragQueryFileW
comctl32
InitCommonControlsEx
shlwapi
PathFindFileNameW
PathRemoveFileSpecW
PathIsUNCW
PathFindExtensionW
PathStripToRootW
ole32
CoRevokeClassObject
CreateILockBytesOnHGlobal
StgOpenStorageOnILockBytes
StgCreateDocfileOnILockBytes
CoGetClassObject
CoDisconnectObject
CoTaskMemAlloc
OleUninitialize
OleInitialize
CoFreeUnusedLibraries
CLSIDFromProgID
CLSIDFromString
CoCreateGuid
OleDraw
CreateStreamOnHGlobal
CoTaskMemFree
CoInitializeEx
CoInitializeSecurity
CoInitialize
CoUninitialize
CoCreateInstance
OleFlushClipboard
OleIsCurrentClipboard
CoRegisterMessageFilter
oleaut32
SafeArrayGetElemsize
OleCreateFontIndirect
SafeArrayDestroy
SafeArrayCreate
SafeArrayGetDim
LoadTypeLi
SafeArrayUnaccessData
SafeArrayAccessData
SafeArrayGetLBound
SafeArrayGetUBound
VariantTimeToSystemTime
SystemTimeToVariantTime
SysStringLen
VariantCopy
SysAllocString
VariantChangeType
VariantClear
SysFreeString
SysAllocStringLen
VariantInit
oledlg
OleUIBusyW
oleacc
CreateStdAccessibleObject
AccessibleObjectFromWindow
LresultFromObject
gdiplus
GdiplusShutdown
Sections
.text Size: 597KB - Virtual size: 597KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 178KB - Virtual size: 177KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 15KB - Virtual size: 32KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 71KB - Virtual size: 70KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 44KB - Virtual size: 44KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ