Static task
static1
Behavioral task
behavioral1
Sample
2024-05-25_c2203d35713cc5b35046f6aef3fd2597_bkransomware.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-25_c2203d35713cc5b35046f6aef3fd2597_bkransomware.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-25_c2203d35713cc5b35046f6aef3fd2597_bkransomware
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Size
783KB
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MD5
c2203d35713cc5b35046f6aef3fd2597
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SHA1
da5622d2183f2c1230ebbd587e6aff3cdf1e718c
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SHA256
7caafe414a09da32f397ee471236a6a73c349d907c5a336ca02a129f64b0a573
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SHA512
35c85d44daf8deeed8b9206d25ff362b424c8e74efadc07114172ee5cacf6859ab1527692650cf935d975c10a3dafdf7c7ba4f3bae48707a07a73ad8698cb91e
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SSDEEP
12288:jG8wUKZ1YOQTlc5r5C9UutTv2dk7iBJxVHtqKJX18Be4cd:jG8wUKZ1ETlc5rpud8k7iBJxVMdJs
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-25_c2203d35713cc5b35046f6aef3fd2597_bkransomware
Files
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2024-05-25_c2203d35713cc5b35046f6aef3fd2597_bkransomware.exe windows:5 windows x86 arch:x86
96c2b4b2aadbf769a3e1305d8b36a0fd
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
HttpSendRequestW
HttpQueryInfoW
InternetReadFile
InternetCloseHandle
InternetCanonicalizeUrlW
HttpOpenRequestW
InternetOpenW
InternetConnectW
kernel32
FlushFileBuffers
GetFileSize
GetFullPathNameW
GetVolumeInformationW
LockFile
SetEndOfFile
SetFilePointer
UnlockFile
DuplicateHandle
FileTimeToSystemTime
SetErrorMode
FileTimeToLocalFileTime
GetFileAttributesExW
GetFileSizeEx
GetFileTime
CreateThread
IsDebuggerPresent
IsProcessorFeaturePresent
RtlUnwind
FindFirstFileW
AreFileApisANSI
HeapQueryInformation
VirtualAlloc
VirtualProtect
VirtualQuery
GetStdHandle
GetFileType
GetStartupInfoW
QueryPerformanceCounter
GetEnvironmentStringsW
FreeEnvironmentStringsW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
GetConsoleMode
ReadConsoleW
IsValidCodePage
GetOEMCP
GetCPInfo
GetStringTypeW
GetTimeZoneInformation
OutputDebugStringW
LCMapStringW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
GetConsoleCP
SetFilePointerEx
SetStdHandle
WriteConsoleW
SetEnvironmentVariableA
FindClose
LocalReAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
CompareStringW
GlobalFlags
FormatMessageW
GetCurrentProcessId
WritePrivateProfileStringW
GetPrivateProfileStringW
GetPrivateProfileIntW
lstrcmpA
GlobalAlloc
GetThreadLocale
GlobalFindAtomW
GlobalAddAtomW
lstrcmpW
GlobalDeleteAtom
LoadLibraryExW
FreeLibrary
GetSystemDirectoryW
GetCurrentThreadId
EncodePointer
MulDiv
GlobalFree
GlobalUnlock
GlobalLock
FreeResource
LoadLibraryA
GetModuleHandleA
SetLastError
OutputDebugStringA
GetACP
GetTickCount
GetLongPathNameW
GetTempPathW
GetSystemInfo
LocalAlloc
GetVersionExW
GetLocaleInfoW
GetCurrentThread
GetCurrentProcess
GetComputerNameA
WideCharToMultiByte
GetSystemTimeAsFileTime
CreateProcessW
GetProcAddress
GetFileAttributesW
LoadLibraryW
DeviceIoControl
MultiByteToWideChar
GetModuleHandleW
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSection
DeleteFileW
ReadFile
LocalFree
GetModuleFileNameW
GetCommandLineW
CloseHandle
WaitForMultipleObjects
LockResource
ExitThread
CreateFileW
SizeofResource
Sleep
CreateDirectoryExW
WriteFile
WaitForSingleObject
InterlockedDecrement
InterlockedIncrement
LoadResource
FindResourceW
ExitProcess
DeleteCriticalSection
DecodePointer
HeapSize
GetLastError
RaiseException
InitializeCriticalSectionAndSpinCount
GetProcessHeap
HeapFree
HeapAlloc
HeapReAlloc
GetModuleHandleExW
user32
CharUpperW
GetNextDlgGroupItem
MessageBeep
RegisterClipboardFormatW
PostThreadMessageW
DestroyMenu
IntersectRect
GetSysColorBrush
RealChildWindowFromPoint
WindowFromPoint
GetCursorPos
TranslateMessage
GetMessageW
MapDialogRect
SetWindowContextHelpId
GetWindowThreadProcessId
PostQuitMessage
OffsetRect
CharNextW
IsDialogMessageW
IsDlgButtonChecked
MoveWindow
GetMonitorInfoW
MonitorFromWindow
WinHelpW
CallNextHookEx
UnhookWindowsHookEx
SetWindowsHookExW
GetWindow
GetLastActivePopup
GetTopWindow
GetClassNameW
GetClassLongW
PtInRect
EqualRect
CopyRect
MapWindowPoints
AdjustWindowRectEx
RedrawWindow
ValidateRect
SetForegroundWindow
GetForegroundWindow
UpdateWindow
GetMenuItemCount
GetMenuItemID
GetSubMenu
SetMenu
GetCapture
GetKeyState
GetDlgCtrlID
IsWindowVisible
IsChild
GetClassInfoExW
GetClassInfoW
RegisterClassW
DefWindowProcW
GetMessageTime
GetMessagePos
PeekMessageW
DispatchMessageW
GetSysColor
ScreenToClient
ClientToScreen
EndPaint
BeginPaint
GetWindowDC
TabbedTextOutW
GrayStringW
DrawTextExW
DrawTextW
GetDesktopWindow
SetActiveWindow
GetActiveWindow
GetNextDlgTabItem
EndDialog
CreateDialogIndirectParamW
DestroyWindow
RegisterWindowMessageW
IsWindowEnabled
SetFocus
IsWindow
LoadBitmapW
SetMenuItemInfoW
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
EnableMenuItem
KillTimer
SetTimer
IsRectEmpty
SetRect
InvalidateRgn
CheckMenuItem
GetFocus
InvalidateRect
CopyAcceleratorTableW
ReleaseCapture
SetCapture
SendDlgItemMessageA
SetCursor
RemovePropW
LoadCursorW
LoadIconW
GetWindowRect
GetParent
GetClientRect
PostMessageW
SetPropW
GetWindowLongW
SetWindowLongW
SetWindowPos
ShowWindow
CreateWindowExW
MessageBoxW
GetPropW
CallWindowProcW
GetDC
SystemParametersInfoW
ReleaseDC
GetSystemMetrics
wsprintfW
GetWindowTextW
GetDlgItem
SetWindowTextW
UnregisterClassW
SendMessageW
EnableWindow
GetMenu
gdi32
TextOutW
ExtTextOutW
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
OffsetViewportOrgEx
ScaleViewportExtEx
GetBkColor
CreateRectRgnIndirect
GetMapMode
GetRgnBox
ScaleWindowExtEx
SetMapMode
CreateBitmap
SetTextColor
GetStockObject
GetTextExtentPoint32W
GetTextMetricsW
DeleteObject
SelectObject
CreateFontIndirectW
GetTextColor
GetObjectW
SetBkColor
ExtSelectClipRgn
SaveDC
RestoreDC
RectVisible
PtVisible
GetWindowExtEx
GetViewportExtEx
GetDeviceCaps
GetClipBox
Escape
DeleteDC
comdlg32
GetSaveFileNameW
winspool.drv
OpenPrinterW
ClosePrinter
DocumentPropertiesW
advapi32
OpenThreadToken
RegEnumValueW
RegQueryValueW
RegEnumKeyW
RegDeleteValueW
RegCreateKeyExW
GetUserNameA
GetTokenInformation
AllocateAndInitializeSid
OpenProcessToken
RegSetValueExW
RegCloseKey
RegOpenKeyExW
RegOpenCurrentUser
RegDeleteKeyW
RegQueryValueExW
CheckTokenMembership
FreeSid
shell32
ShellExecuteW
CommandLineToArgvW
ShellExecuteExW
comctl32
InitCommonControlsEx
shlwapi
PathFindFileNameW
PathIsUNCW
PathFindExtensionW
PathStripToRootW
ole32
CoGetClassObject
CLSIDFromProgID
CLSIDFromString
CoInitialize
CoCreateGuid
CoTaskMemFree
CoUninitialize
CoInitializeSecurity
CoCreateInstance
CoFreeUnusedLibraries
OleInitialize
StgCreateDocfileOnILockBytes
StgOpenStorageOnILockBytes
CoTaskMemAlloc
CreateILockBytesOnHGlobal
OleUninitialize
CoRegisterMessageFilter
OleIsCurrentClipboard
OleFlushClipboard
CoRevokeClassObject
oleaut32
SafeArrayDestroy
VariantTimeToSystemTime
SystemTimeToVariantTime
SysStringLen
SysAllocString
OleCreateFontIndirect
VariantChangeType
VariantClear
VariantInit
SysAllocStringLen
VariantCopy
SysFreeString
oledlg
OleUIBusyW
oleacc
LresultFromObject
CreateStdAccessibleObject
Sections
.text Size: 506KB - Virtual size: 505KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 149KB - Virtual size: 149KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 14KB - Virtual size: 47KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 65KB - Virtual size: 65KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 47KB - Virtual size: 46KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ