Static task
static1
Behavioral task
behavioral1
Sample
2024-05-26_bf3a7b70c9d1b12e40a72ab8a8f2c267_bkransomware.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-26_bf3a7b70c9d1b12e40a72ab8a8f2c267_bkransomware.exe
Resource
win10v2004-20240426-en
General
-
Target
2024-05-26_bf3a7b70c9d1b12e40a72ab8a8f2c267_bkransomware
-
Size
11.5MB
-
MD5
bf3a7b70c9d1b12e40a72ab8a8f2c267
-
SHA1
2b108d52ff007eec802e60470da58febe6090fdd
-
SHA256
e58e59d1b2f0fe0f879908ef610c60aad70b03dabc58c9af804110c9b5c065de
-
SHA512
c1af32fc4ad485c3f9e817c0e128f4477b3e0699d82f15ba70070f76808451df858578b64d014ba902eb943fe05d5775fd83af891a0565059f767b3971efaae6
-
SSDEEP
196608:aCO9oxzzGfmFgkf9mcrJiJsv6tWKFdu9Cf6E:y2YIDIJsv6tWKFdu9Cl
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-26_bf3a7b70c9d1b12e40a72ab8a8f2c267_bkransomware
Files
-
2024-05-26_bf3a7b70c9d1b12e40a72ab8a8f2c267_bkransomware.exe windows:5 windows x86 arch:x86
74ee357227ca496e24441712696fcdb0
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
SetErrorMode
CreateFileMappingW
MapViewOfFile
UnmapViewOfFile
MoveFileExW
GetCurrentDirectoryW
CreateDirectoryW
DeleteFileW
FindClose
FindFirstFileW
GetFileAttributesW
GetFileAttributesExW
GetFileInformationByHandle
GetFullPathNameW
GetLongPathNameW
RemoveDirectoryW
GetTempPathW
DeviceIoControl
LoadLibraryW
CopyFileW
MoveFileW
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
ResetEvent
MultiByteToWideChar
WideCharToMultiByte
GetDateFormatW
GetTimeFormatW
GetLocaleInfoW
GetCurrencyFormatW
GetUserDefaultUILanguage
GetSystemDirectoryW
FindFirstFileExW
FindNextFileW
FreeLibrary
GetModuleHandleExW
GetTimeZoneInformation
GetGeoInfoW
GetUserGeoID
OpenProcess
LoadLibraryA
ExitProcess
DisconnectNamedPipe
WaitNamedPipeW
ConnectNamedPipe
CreateNamedPipeW
GetOverlappedResult
SetHandleInformation
lstrcmpW
GetVolumeInformationW
GetDriveTypeW
IsValidLanguageGroup
IsValidLocale
ExpandEnvironmentStringsW
CreateProcessW
GetUserDefaultLangID
CheckRemoteDebuggerPresent
GlobalAlloc
GlobalLock
GlobalUnlock
GlobalSize
FormatMessageW
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
ReleaseMutex
CreateMutexW
VirtualAlloc
VirtualFree
GetSystemTimeAsFileTime
EncodePointer
DecodePointer
RaiseException
RtlUnwind
GetCommandLineA
IsDebuggerPresent
IsProcessorFeaturePresent
HeapFree
HeapAlloc
HeapReAlloc
GetLogicalDrives
ExitThread
LoadLibraryExW
WriteFile
SetFileAttributesW
GetConsoleMode
ReadConsoleW
GetConsoleCP
UnhandledExceptionFilter
SetLastError
InitializeCriticalSectionAndSpinCount
HeapSize
GetProcessHeap
GetStdHandle
GetModuleFileNameA
GetEnvironmentStringsW
FreeEnvironmentStringsW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
SetEnvironmentVariableA
WriteConsoleW
GetThreadTimes
InitializeSListHead
LCMapStringW
EnumSystemLocalesW
GetStringTypeW
GetFileType
FlushFileBuffers
CreateFileW
GetModuleHandleW
WaitForMultipleObjects
GetSystemInfo
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
TerminateThread
GetThreadPriority
SetThreadPriority
GetCurrentThreadId
GetCurrentThread
CreateThread
CreateEventW
WaitForSingleObject
SetEvent
GetCurrentProcess
GetLastError
DuplicateHandle
GetLocalTime
GetSystemTime
GetConsoleWindow
OutputDebugStringW
LocalFree
GetCurrentProcessId
GetCommandLineW
GetUserDefaultLCID
CompareStringW
GetTickCount
QueryPerformanceFrequency
SetFilePointerEx
SetEndOfFile
SetStdHandle
ReadFile
QueryPerformanceCounter
GetModuleFileNameW
GetStartupInfoW
AreFileApisANSI
WaitForSingleObjectEx
ReadFileEx
PeekNamedPipe
CancelIo
SleepEx
WriteFileEx
FindCloseChangeNotification
FindFirstChangeNotificationW
FindNextChangeNotification
GetVolumeInformationA
CreateProcessA
GetModuleHandleA
lstrlenA
CloseHandle
Sleep
ResumeThread
SuspendThread
SetThreadContext
GetThreadContext
WriteProcessMemory
VirtualProtectEx
FlushInstructionCache
GetProcAddress
SetUnhandledExceptionFilter
TerminateProcess
InitializeCriticalSection
user32
TrackPopupMenuEx
SetMenuItemInfoW
NotifyWinEvent
SetCursorPos
GetCursor
LoadCursorW
CreateCursor
CreateIconIndirect
GetMenu
GetCursorInfo
DestroyCaret
TrackMouseEvent
GetMessageExtraInfo
GetWindowTextW
EnumWindows
RealGetWindowClassW
MapVirtualKeyW
HideCaret
ToUnicode
ToAscii
GetKeyboardState
GetKeyState
IsZoomed
SetCaretPos
GetIconInfo
FindWindowA
DrawIconEx
CreateCaret
GetKeyboardLayout
TranslateMessage
DispatchMessageW
PeekMessageW
GetAsyncKeyState
RegisterClipboardFormatW
ChangeClipboardChain
SetClipboardViewer
LoadIconW
EnumDisplayMonitors
GetMonitorInfoW
LoadImageW
GetSysColorBrush
ChildWindowFromPointEx
GetClipboardFormatNameW
GetCursorPos
GetClientRect
GetFocus
RegisterClassExW
GetClassInfoW
GetKeyboardLayoutList
GetAncestor
DestroyCursor
SetParent
GetParent
ScreenToClient
ClientToScreen
SetCursor
AdjustWindowRectEx
GetWindowRect
SetWindowTextW
InvalidateRect
GetUpdateRect
EndPaint
BeginPaint
SetForegroundWindow
GetForegroundWindow
ReleaseCapture
SetCapture
GetCapture
SetFocus
PostMessageW
DefWindowProcW
RegisterClassW
UnregisterClassW
CreateWindowExW
DestroyWindow
GetDC
GetQueueStatus
MsgWaitForMultipleObjectsEx
SetTimer
KillTimer
GetWindowLongW
SetWindowLongW
SetWindowsHookExW
UnhookWindowsHookEx
CallNextHookEx
CharNextExA
MessageBoxW
SystemParametersInfoW
ReleaseDC
GetSystemMenu
EnableMenuItem
RegisterWindowMessageW
SendMessageW
GetSystemMetrics
IsIconic
IsWindowVisible
SetWindowPlacement
GetWindowPlacement
SetWindowPos
MoveWindow
FlashWindowEx
ShowWindow
IsChild
AttachThreadInput
GetDesktopWindow
GetCaretBlinkTime
MessageBeep
GetDoubleClickTime
SetWindowRgn
GetSysColor
DestroyIcon
GetWindowThreadProcessId
ws2_32
WSASend
WSARecvFrom
WSARecv
WSANtohs
WSANtohl
WSAIoctl
WSAHtonl
WSAConnect
WSAAccept
setsockopt
select
getsockname
getpeername
__WSAFDIsSet
WSASendTo
WSAGetLastError
gethostbyaddr
ntohl
htonl
WSAAsyncSelect
WSACleanup
gethostname
bind
closesocket
htons
gethostbyname
inet_addr
listen
getsockopt
WSASocketW
WSAStartup
iphlpapi
GetAdaptersAddresses
GetAdaptersInfo
netapi32
Netbios
shell32
SHGetSpecialFolderPathW
SHBrowseForFolderW
SHGetPathFromIDListW
SHGetMalloc
ShellExecuteW
SHGetFileInfoW
Shell_NotifyIconW
CommandLineToArgvW
ole32
CoTaskMemFree
CoCreateGuid
StringFromGUID2
CoLockObjectExternal
RegisterDragDrop
RevokeDragDrop
OleInitialize
OleUninitialize
OleSetClipboard
OleGetClipboard
OleFlushClipboard
DoDragDrop
ReleaseStgMedium
CoGetMalloc
CoTaskMemAlloc
CoInitialize
CoCreateInstance
CoUninitialize
OleIsCurrentClipboard
advapi32
OpenProcessToken
CopySid
FreeSid
GetLengthSid
GetTokenInformation
RegCloseKey
RegEnumKeyExW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
RegCreateKeyExW
RegDeleteKeyW
RegDeleteValueW
RegEnumValueW
RegFlushKey
RegSetValueExW
AddAccessAllowedAce
AllocateAndInitializeSid
InitializeAcl
InitializeSecurityDescriptor
SetSecurityDescriptorDacl
SetSecurityDescriptorGroup
SetSecurityDescriptorOwner
gdi32
CreateBitmap
CombineRgn
CreateCompatibleDC
CreateRectRgn
DeleteDC
DeleteObject
GetRegionData
SelectClipRgn
SelectObject
CreateDIBSection
GdiFlush
BitBlt
OffsetRgn
GetDeviceCaps
CreateCompatibleBitmap
CreateDCW
EnumFontFamiliesExW
CreateFontIndirectW
GetFontData
GetStockObject
AddFontResourceExW
RemoveFontResourceExW
AddFontMemResourceEx
RemoveFontMemResourceEx
GetTextMetricsW
GetObjectW
GetTextFaceW
ChoosePixelFormat
DescribePixelFormat
GetPixelFormat
SetPixelFormat
SwapBuffers
GetBitmapBits
GetCharABCWidthsW
GetCharABCWidthsFloatW
GetGlyphOutlineW
GetOutlineTextMetricsW
GetTextExtentPoint32W
GetCharABCWidthsI
SetBkMode
SetGraphicsMode
SetTextColor
SetTextAlign
SetWorldTransform
ExtTextOutW
GetDIBits
oleaut32
SysStringLen
VariantInit
VariantChangeType
SystemTimeToVariantTime
SysFreeString
SysAllocString
SysAllocStringLen
imm32
ImmSetCandidateWindow
ImmSetCompositionWindow
ImmNotifyIME
ImmGetCompositionStringW
ImmAssociateContext
ImmGetDefaultIMEWnd
ImmGetContext
ImmReleaseContext
ImmGetVirtualKey
winmm
PlaySoundW
Sections
.text Size: 6.7MB - Virtual size: 6.7MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 4.4MB - Virtual size: 4.4MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 55KB - Virtual size: 109KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.qtmetad Size: 512B - Virtual size: 272B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 292B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 18KB - Virtual size: 17KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 223KB - Virtual size: 222KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ