Static task
static1
Behavioral task
behavioral1
Sample
2024-09-11_7da57ea7b83be66398badb118e3578d5_bkransomware.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-11_7da57ea7b83be66398badb118e3578d5_bkransomware.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-11_7da57ea7b83be66398badb118e3578d5_bkransomware
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Size
288KB
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MD5
7da57ea7b83be66398badb118e3578d5
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SHA1
787ca3c676dc0e3cfdcc517b5c6c83c6937c2dd6
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SHA256
38cd1efc126ea5e9e36fd86f0b9b61d9b02c4e42b72fffad34fa7719f28d85a4
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SHA512
3ee3305aeba7f14bd692cf514a63048379b6a5629ff4df30bc8b85f204c1f3e03115ab0bd87a007fb692493c12d04046e830f39d10dd260ca6edac736aacf553
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SSDEEP
6144:oAMato1nh0hFxo9wZ9ff7WUcZ/1KAmpfx:oAMsQnOhFIwZ1KUcZdKRlx
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-09-11_7da57ea7b83be66398badb118e3578d5_bkransomware
Files
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2024-09-11_7da57ea7b83be66398badb118e3578d5_bkransomware.exe windows:5 windows x86 arch:x86
24be2bba3730b7a442e3b62a0767065e
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
GetProcAddress
CreateFileMappingW
MapViewOfFile
UnmapViewOfFile
ExitProcess
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
GetModuleHandleW
WaitForMultipleObjects
DeleteFileA
CreateProcessA
GetTickCount
InitializeCriticalSection
SetEndOfFile
CreateFileA
CreateDirectoryA
GetTempPathA
Sleep
WriteFile
SetFilePointer
WaitForSingleObject
CreateThread
InterlockedDecrement
CloseHandle
GetProcessHeap
HeapSize
HeapReAlloc
HeapFree
HeapAlloc
InterlockedExchange
DecodePointer
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
InitializeCriticalSectionAndSpinCount
GetLastError
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
SetLastError
SetUnhandledExceptionFilter
UnhandledExceptionFilter
GetStdHandle
AreFileApisANSI
GetModuleHandleExW
GetCommandLineW
ResumeThread
ExitThread
IsProcessorFeaturePresent
EncodePointer
VirtualQuery
VirtualProtect
VirtualAlloc
GetSystemInfo
OutputDebugStringW
IsDebuggerPresent
RaiseException
user32
GetSystemMetrics
RegisterClassExW
LoadIconW
LoadCursorW
BeginPaint
EndPaint
DefWindowProcW
SetRectEmpty
CopyRect
GetDC
FillRect
GetSubMenu
GetCursorPos
TrackPopupMenu
PostQuitMessage
SetWindowPos
IsWindow
DrawTextA
SetCursor
ReleaseDC
ShowWindow
SetWindowTextA
LoadMenuW
DestroyWindow
TranslateMessage
DispatchMessageW
GetMessageW
MessageBoxW
SetRect
PtInRect
CreateWindowExW
SendMessageW
PostMessageW
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
SHGetPathFromIDListA
Shell_NotifyIconW
ShellExecuteA
SHGetPathFromIDListW
ord165
SHGetSpecialFolderLocation
ole32
CoUninitialize
CoInitialize
CoCreateInstance
CreateStreamOnHGlobal
oleaut32
SysFreeString
GetErrorInfo
SysAllocString
VariantClear
ws2_32
setsockopt
gethostbyname
inet_ntoa
socket
htons
inet_addr
connect
recv
closesocket
WSAStartup
send
shlwapi
PathAppendW
PathIsDirectoryW
PathRemoveFileSpecW
PathFileExistsW
gdiplus
GdipGetImageGraphicsContext
GdipDeleteGraphics
GdipDrawImageI
GdipFree
GdipAlloc
GdiplusShutdown
GdiplusStartup
GdipBitmapUnlockBits
GdipBitmapLockBits
GdipCreateBitmapFromScan0
GdipCreateBitmapFromStream
GdipCloneImage
GdipGetImagePalette
GdipGetImagePaletteSize
GdipGetImagePixelFormat
GdipGetImageHeight
GdipGetImageWidth
GdipDisposeImage
msimg32
AlphaBlend
TransparentBlt
iphlpapi
GetAdaptersInfo
setupapi
SetupIterateCabinetW
urlmon
URLDownloadToFileW
Sections
.text Size: 164KB - Virtual size: 164KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 45KB - Virtual size: 44KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 325KB - Virtual size: 334KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 118KB - Virtual size: 118KB
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