Static task
static1
Behavioral task
behavioral1
Sample
2024-08-25_2c19b869585bf43631e61ab1ce478add_bkransomware.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-25_2c19b869585bf43631e61ab1ce478add_bkransomware.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-25_2c19b869585bf43631e61ab1ce478add_bkransomware
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Size
362KB
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MD5
2c19b869585bf43631e61ab1ce478add
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SHA1
e1cd1df0451db81d07c5e886896a4c76e5a525fd
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SHA256
199f10bea29b4512df3d53569881f68437b7741fe8bcbcb06dc5b01114374501
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SHA512
748fdd3a67eec31dfec67e28428e7063a82c00e7672b23bcd747262cf9eb6af089c49a9a7276b69077eed0ed94d7bfd6a06c7024d721dd115ca01e9a610acb42
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SSDEEP
6144:qUwWwZ5u1XT1JVDGD3BNhZQPj/MBEw1mqFsHgKu6ho:qiU52T1vDGDPhZGqjmqSH46ho
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-08-25_2c19b869585bf43631e61ab1ce478add_bkransomware
Files
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2024-08-25_2c19b869585bf43631e61ab1ce478add_bkransomware.exe windows:5 windows x86 arch:x86
e39337c01812f70d23411d49f59289c8
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
GetVersionExW
GetModuleFileNameA
MultiByteToWideChar
WideCharToMultiByte
GetSystemDirectoryW
GetProcAddress
CreateFileMappingW
MapViewOfFile
UnmapViewOfFile
ExitProcess
GetSystemDirectoryA
CreateToolhelp32Snapshot
Process32FirstW
GetCurrentProcess
TerminateProcess
Process32NextW
GetModuleFileNameW
lstrcpyW
lstrcatW
CreateMutexW
SetCurrentDirectoryW
LoadLibraryW
GetTempPathW
MoveFileW
DeleteFileW
CreateFileW
GetFileType
ReadFile
SystemTimeToFileTime
GetCurrentDirectoryW
DosDateTimeToFileTime
LocalFree
lstrlenA
WriteConsoleW
FlushFileBuffers
SetStdHandle
LCMapStringW
DeviceIoControl
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
GetStringTypeW
LoadLibraryExW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetSystemTimeAsFileTime
GetCurrentProcessId
QueryPerformanceCounter
GetConsoleCP
ReadConsoleW
GetConsoleMode
SetFilePointerEx
RtlUnwind
GetCurrentThreadId
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
GetStartupInfoW
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
GetModuleHandleW
WaitForMultipleObjects
DeleteFileA
CreateProcessA
GetTickCount
InitializeCriticalSection
SetEndOfFile
CreateFileA
CreateDirectoryA
GetTempPathA
Sleep
WriteFile
SetFilePointer
WaitForSingleObject
CreateThread
InterlockedDecrement
CloseHandle
GetProcessHeap
HeapSize
HeapReAlloc
InterlockedExchange
HeapFree
HeapAlloc
DecodePointer
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
InitializeCriticalSectionAndSpinCount
GetLastError
SetLastError
SetUnhandledExceptionFilter
UnhandledExceptionFilter
GetStdHandle
AreFileApisANSI
GetModuleHandleExW
GetCommandLineW
ResumeThread
ExitThread
IsProcessorFeaturePresent
EncodePointer
VirtualQuery
VirtualProtect
VirtualAlloc
GetSystemInfo
OutputDebugStringW
IsDebuggerPresent
RaiseException
user32
EndPaint
GetSubMenu
PtInRect
SetRect
MessageBoxW
GetMessageW
DispatchMessageW
TranslateMessage
GetCursorPos
TrackPopupMenu
CharNextA
BeginPaint
SetRectEmpty
DefWindowProcW
PostQuitMessage
LoadCursorW
LoadIconW
RegisterClassExW
GetSystemMetrics
CreateWindowExW
GetDC
ReleaseDC
ShowWindow
SetWindowTextA
DrawTextA
SetCursor
FillRect
CopyRect
IsWindow
GetSystemMenu
EnableMenuItem
PostMessageW
DestroyWindow
SetForegroundWindow
SendMessageW
GetDesktopWindow
SetWindowPos
LoadMenuW
gdi32
CreateCompatibleDC
FrameRgn
TextOutA
SetTextColor
GetTextExtentPoint32A
CreateSolidBrush
CreateRoundRectRgn
SetBkMode
EnumFontsW
CreateFontW
GetDIBColorTable
StretchBlt
CreateCompatibleBitmap
GetObjectW
SetDIBColorTable
SelectObject
DeleteObject
CreateDIBSection
BitBlt
DeleteDC
advapi32
RegSetValueExA
RegCreateKeyExA
RegCloseKey
shell32
ShellExecuteA
Shell_NotifyIconW
ord165
SHGetSpecialFolderPathA
SHGetPathFromIDListA
SHGetSpecialFolderLocation
SHGetPathFromIDListW
ole32
CoUninitialize
CoInitialize
CoCreateInstance
CreateStreamOnHGlobal
oleaut32
SysAllocString
GetErrorInfo
VariantClear
SysFreeString
ws2_32
WSAStartup
gethostbyname
inet_ntoa
socket
setsockopt
closesocket
recv
send
connect
inet_addr
htons
shlwapi
PathIsDirectoryW
PathFileExistsW
PathAppendW
PathRemoveFileSpecW
gdiplus
GdipFree
GdipAlloc
GdipGetImagePaletteSize
GdipGetImagePalette
GdipCreateBitmapFromStream
GdipCreateBitmapFromScan0
GdipDisposeImage
GdipGetImageGraphicsContext
GdipBitmapLockBits
GdipBitmapUnlockBits
GdipDeleteGraphics
GdipDrawImageI
GdipCloneImage
GdipGetImageWidth
GdipGetImageHeight
GdiplusShutdown
GdiplusStartup
GdipGetImagePixelFormat
msimg32
AlphaBlend
TransparentBlt
iphlpapi
GetAdaptersInfo
setupapi
SetupIterateCabinetW
urlmon
URLDownloadToFileW
Sections
.text Size: 166KB - Virtual size: 166KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 45KB - Virtual size: 45KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 327KB - Virtual size: 336KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 109KB - Virtual size: 108KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 9KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ