Static task
static1
Behavioral task
behavioral1
Sample
2024-10-01_4f938ef1a6a58c51ad237974dfb6b70b_bkransomware.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-01_4f938ef1a6a58c51ad237974dfb6b70b_bkransomware.exe
Resource
win10v2004-20240802-en
General
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Target
2024-10-01_4f938ef1a6a58c51ad237974dfb6b70b_bkransomware
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Size
654KB
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MD5
4f938ef1a6a58c51ad237974dfb6b70b
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SHA1
1241501ddc5a91413191b356e972ea879ae97513
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SHA256
f8cd8d28bb5ac965d2f2005ea0e44ade5e438d93a17cdb6e92f8da6ba42b81d2
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SHA512
7d1077f65e9fa7ea697b6888ab89a6e3bc1ab9242e96d41a135700f67a2ba575b15a7a53350f7c65f3d02e0e15e90079708f2991f3ddf79fe44bf85e80573bbb
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SSDEEP
12288:YGoNFBhIcDbh/uQFz70Z2I3zJtDgj+kf28zIa4LbBrOct:YnNFEcDbhGQCfDHP8Mxd
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-10-01_4f938ef1a6a58c51ad237974dfb6b70b_bkransomware
Files
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2024-10-01_4f938ef1a6a58c51ad237974dfb6b70b_bkransomware.exe windows:5 windows x86 arch:x86
dcfa16080752cf095ba67a1811b5e1f6
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
GetProcAddress
GetModuleHandleA
GetLastError
HeapFree
HeapAlloc
GetSystemTimeAsFileTime
EncodePointer
DecodePointer
ExitProcess
GetModuleHandleExW
AreFileApisANSI
MultiByteToWideChar
WideCharToMultiByte
HeapReAlloc
Beep
Sleep
DeleteFileW
CloseHandle
DuplicateHandle
GetCurrentProcess
CreateProcessA
GetLocalTime
DeleteCriticalSection
GetFullPathNameW
GetTempPathW
GetFullPathNameA
GetCommandLineA
IsProcessorFeaturePresent
GetProcessHeap
GetStdHandle
WriteFile
GetModuleFileNameW
IsDebuggerPresent
SetLastError
GetCurrentThread
GetCurrentThreadId
EnterCriticalSection
LeaveCriticalSection
FatalAppExitA
UnhandledExceptionFilter
SetUnhandledExceptionFilter
InitializeCriticalSectionAndSpinCount
CreateEventW
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetStartupInfoW
GetTickCount
GetModuleHandleW
CreateSemaphoreW
SetConsoleCtrlHandler
FreeLibrary
LoadLibraryExW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
FindClose
FindFirstFileExW
GetDriveTypeW
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
RtlUnwind
GetConsoleCP
GetConsoleMode
GetStringTypeW
RaiseException
GetFileType
WaitForSingleObject
GetExitCodeProcess
CreatePipe
GetFileAttributesExW
GetCurrentProcessId
SetFilePointerEx
SetEnvironmentVariableA
SetEnvironmentVariableW
ReadFile
ReadConsoleW
GetModuleFileNameA
QueryPerformanceCounter
GetEnvironmentStringsW
FreeEnvironmentStringsW
OutputDebugStringW
HeapSize
GetDateFormatW
GetTimeFormatW
CompareStringW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
FileTimeToLocalFileTime
GetFileInformationByHandle
PeekNamedPipe
SetCurrentDirectoryW
GetCurrentDirectoryW
CreateFileW
SetStdHandle
WriteConsoleW
FlushFileBuffers
CreateProcessW
GetTimeZoneInformation
SetEndOfFile
Sections
.text Size: 528KB - Virtual size: 528KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 40KB - Virtual size: 40KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 38KB - Virtual size: 52KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 45KB - Virtual size: 45KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ