Static task
static1
Behavioral task
behavioral1
Sample
2024-08-25_b1e353c7724a3f5d32d793ca88bef2ae_bkransomware.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
2024-08-25_b1e353c7724a3f5d32d793ca88bef2ae_bkransomware.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-25_b1e353c7724a3f5d32d793ca88bef2ae_bkransomware
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Size
221KB
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MD5
b1e353c7724a3f5d32d793ca88bef2ae
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SHA1
0f6882242c2e11eebae03729600cef9dba56ae57
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SHA256
3c1c9e1d5507deae3245966930477d69b250d3f68b3e0d26bf8a45322eb9ec8c
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SHA512
1a59d3b9408e05d66929afedd173fe9965c7f84e1037392fd83fa9eb2d2513a65be6ed99a67f7739f9c64577fd0a4f1935ea0543ab95811ce0081220649046fd
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SSDEEP
3072:8dwfzOWrcyh/WrByDQuna4MDdfj2lnMkYWIb1orfp/TsdnFvkaa6x/b4ihvNasgM:8GOWvJRv7lTUpa64DaZ9z31
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-08-25_b1e353c7724a3f5d32d793ca88bef2ae_bkransomware
Files
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2024-08-25_b1e353c7724a3f5d32d793ca88bef2ae_bkransomware.exe windows:5 windows x86 arch:x86
029a186bebd0e919ac2b773f54f976e1
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
GetComputerNameW
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
HeapFree
InterlockedExchange
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
GetSubMenu
PtInRect
SetRect
MessageBoxW
GetMessageW
DispatchMessageW
TranslateMessage
CharNextA
GetCursorPos
TrackPopupMenu
EndPaint
SetRectEmpty
DefWindowProcW
LoadCursorW
PostQuitMessage
LoadIconW
RegisterClassExW
GetSystemMetrics
CreateWindowExW
GetDC
ReleaseDC
ShowWindow
SetWindowTextA
BeginPaint
DrawTextA
SetCursor
FillRect
CopyRect
SendMessageW
GetSystemMenu
EnableMenuItem
PostMessageW
DestroyWindow
SetForegroundWindow
GetDesktopWindow
IsWindow
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
PathFileExistsA
PathRemoveFileSpecW
PathFileExistsW
PathAppendW
PathIsDirectoryW
gdiplus
GdipFree
GdipGetImagePixelFormat
GdipGetImagePaletteSize
GdipGetImagePalette
GdipCreateBitmapFromStream
GdipAlloc
GdipDisposeImage
GdipCreateBitmapFromScan0
GdipBitmapLockBits
GdipGetImageGraphicsContext
GdipDeleteGraphics
GdipDrawImageI
GdipCloneImage
GdipGetImageWidth
GdiplusShutdown
GdiplusStartup
GdipBitmapUnlockBits
GdipGetImageHeight
msimg32
AlphaBlend
TransparentBlt
iphlpapi
GetAdaptersInfo
setupapi
SetupIterateCabinetW
urlmon
URLDownloadToFileW
Sections
.text Size: 168KB - Virtual size: 168KB
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