Static task
static1
Behavioral task
behavioral1
Sample
2024-08-25_ac56ac7957e3048b28df814fbf0b0bdd_bkransomware.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-25_ac56ac7957e3048b28df814fbf0b0bdd_bkransomware.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-25_ac56ac7957e3048b28df814fbf0b0bdd_bkransomware
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Size
660KB
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MD5
ac56ac7957e3048b28df814fbf0b0bdd
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SHA1
9561e08522d61df61b3eb849341f5b5f3310df41
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SHA256
da4a8975e26e9c6d243105b0843bdfd0f2908a8120af3e7096cc4cefbf90589a
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SHA512
fc3a40ab49611ca6050c9ffabc0d236989a696f7f5957949b08a1752e6242bc2f7246cf79ee2526f9c6afbe0331450bf1cd45fc55fc4597ad426801591754aa8
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SSDEEP
12288:AQwV+ak+cxZkZj5jmqSH46hxnkNUNZyFEGfUO4:A+36ZVjmdH1xnkNU4EGMO4
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-08-25_ac56ac7957e3048b28df814fbf0b0bdd_bkransomware
Files
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2024-08-25_ac56ac7957e3048b28df814fbf0b0bdd_bkransomware.exe windows:5 windows x86 arch:x86
a9121dd3dd18769283da15448701b45b
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
FreeLibrary
CreateFileMappingW
MapViewOfFile
UnmapViewOfFile
ExitProcess
GetSystemDirectoryA
LoadLibraryA
CreateToolhelp32Snapshot
Process32FirstW
GetCurrentProcess
TerminateProcess
Process32NextW
GetModuleFileNameW
GetComputerNameW
CreateMutexW
SetCurrentDirectoryW
LoadLibraryW
GetTempPathW
MoveFileW
DeleteFileW
CreateFileW
GetFileType
ReadFile
SystemTimeToFileTime
GetCurrentDirectoryW
DosDateTimeToFileTime
LocalFree
lstrlenA
WriteConsoleW
FlushFileBuffers
SetStdHandle
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
SetLastError
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
SetUnhandledExceptionFilter
UnhandledExceptionFilter
GetStdHandle
AreFileApisANSI
GetModuleHandleExW
GetCommandLineW
ResumeThread
ExitThread
IsProcessorFeaturePresent
EncodePointer
VirtualQuery
VirtualProtect
VirtualAlloc
GetSystemInfo
OutputDebugStringW
IsDebuggerPresent
RaiseException
LCMapStringW
user32
GetSubMenu
PtInRect
SetRect
MessageBoxW
GetMessageW
DispatchMessageW
TranslateMessage
CharNextA
CopyRect
SetRectEmpty
EndPaint
GetCursorPos
TrackPopupMenu
LoadCursorW
LoadIconW
RegisterClassExW
GetSystemMetrics
BeginPaint
DrawTextA
CreateWindowExW
GetDC
ReleaseDC
ShowWindow
SetWindowTextA
SetCursor
FillRect
DefWindowProcW
SetForegroundWindow
PostQuitMessage
GetSystemMenu
EnableMenuItem
GetDesktopWindow
SetWindowPos
PostMessageW
DestroyWindow
IsWindow
SendMessageW
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
CoCreateInstance
CoUninitialize
CoInitialize
CreateStreamOnHGlobal
oleaut32
SysAllocString
GetErrorInfo
VariantClear
SysFreeString
ws2_32
setsockopt
sendto
recvfrom
WSAStartup
gethostbyname
inet_ntoa
closesocket
recv
send
connect
inet_addr
htons
socket
shlwapi
PathFileExistsA
PathRemoveFileSpecW
PathFileExistsW
PathAppendW
PathIsDirectoryW
gdiplus
GdiplusShutdown
GdipCloneImage
GdipGetImageWidth
GdipGetImageHeight
GdipGetImagePixelFormat
GdipGetImagePaletteSize
GdipGetImagePalette
GdipFree
GdipAlloc
GdipDisposeImage
GdipGetImageGraphicsContext
GdipDeleteGraphics
GdipDrawImageI
GdiplusStartup
GdipBitmapUnlockBits
GdipBitmapLockBits
GdipCreateBitmapFromScan0
GdipCreateBitmapFromStream
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