Static task
static1
Behavioral task
behavioral1
Sample
2024-05-29_a6641f5c66f5fe66bf8104aa07985733_bkransomware.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-29_a6641f5c66f5fe66bf8104aa07985733_bkransomware.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-29_a6641f5c66f5fe66bf8104aa07985733_bkransomware
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Size
8.0MB
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MD5
a6641f5c66f5fe66bf8104aa07985733
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SHA1
f241cde4dddd476cd7446cc218e0b1fc28d9e471
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SHA256
a80fc8cf87dbec4b79d6f92a9cd0c3a1365239126c27c567496f14eb995bbc4c
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SHA512
c4c0a3db9fc14566ab5acfdfd2484e4611a678fb0a15a7f4d256454863865722887157714b3373b11a1663a2f03cf491fe0a48beacf475c48c6ddac2270ab39c
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SSDEEP
196608:Vb6LDrvjBQWj0OjOHzirOSM53JHbaZQx9BhYYfwkcZdwSMlN:KjDvSziqX5HbJBhwdWN
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-29_a6641f5c66f5fe66bf8104aa07985733_bkransomware
Files
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2024-05-29_a6641f5c66f5fe66bf8104aa07985733_bkransomware.exe windows:6 windows x86 arch:x86
87db4c91cf3321aef454756c74cb5be1
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
CloseHandle
ExitProcess
GetDateFormatW
SetFilePointer
GetCPInfo
VirtualQuery
SetEndOfFile
FindResourceW
LoadResource
SystemTimeToFileTime
GetCurrentProcess
CompareFileTime
InitializeSListHead
GetModuleHandleExW
GlobalLock
WaitForSingleObject
SignalObjectAndWait
GetTickCount
GetSystemTimeAsFileTime
OpenProcess
GetSystemDirectoryW
IsValidLocale
Sleep
Beep
CompareStringW
GlobalUnlock
VerifyVersionInfoW
SetThreadLocale
GetThreadLocale
DeleteCriticalSection
SetCommBreak
GetUserDefaultUILanguage
TlsAlloc
LocalFree
TlsFree
SuspendThread
CreateThread
SwitchToThread
WriteConsoleW
SetStdHandle
LoadLibraryW
SetFilePointerEx
GetConsoleMode
GetConsoleCP
FlushFileBuffers
GetStringTypeW
LCMapStringW
UnregisterWaitEx
QueryDepthSList
InterlockedFlushSList
InterlockedPushEntrySList
InterlockedPopEntrySList
ReleaseSemaphore
GetOEMCP
IsValidCodePage
CreateNamedPipeA
GetLastError
GetStartupInfoW
SetThreadPriority
GetTimeZoneInformation
lstrcpynW
HeapCreate
GetSystemTimeAdjustment
GetFileAttributesA
CreateEventA
ResetEvent
SizeofResource
GetCommState
VerSetConditionMask
LoadLibraryExW
SystemTimeToTzSpecificLocalTime
CreateFileA
SetErrorMode
UnmapViewOfFile
GetLocaleInfoA
GetFileSize
GetModuleHandleA
VirtualProtect
VirtualFree
VirtualAlloc
GetVersionExW
FreeLibraryAndExitThread
FreeLibrary
GetThreadTimes
OutputDebugStringW
DuplicateHandle
GetCurrentThread
GetCurrentThreadId
GetExitCodeThread
EnterCriticalSection
LeaveCriticalSection
EncodePointer
DecodePointer
HeapReAlloc
GetCommandLineW
RaiseException
RtlUnwind
IsProcessorFeaturePresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
SetLastError
InitializeCriticalSectionAndSpinCount
CreateEventW
TerminateProcess
TlsGetValue
TlsSetValue
GetModuleHandleW
GetProcAddress
CreateSemaphoreW
ExitThread
HeapFree
CreateTimerQueue
SetEvent
WaitForSingleObjectEx
GetThreadPriority
GetLogicalProcessorInformation
CreateTimerQueueTimer
ChangeTimerQueueTimer
DeleteTimerQueueTimer
GetNumaHighestNodeNumber
GetProcessAffinityMask
SetThreadAffinityMask
RegisterWaitForSingleObject
UnregisterWait
MultiByteToWideChar
WideCharToMultiByte
HeapSize
HeapAlloc
GetProcessHeap
IsDebuggerPresent
GetACP
GetStdHandle
GetFileType
GetModuleFileNameW
WriteFile
QueryPerformanceCounter
GetCurrentProcessId
GetEnvironmentStringsW
FreeEnvironmentStringsW
CreateFileW
user32
ShowWindow
UpdateWindow
GetMenuStringW
GetMenu
CreateWindowExW
GetMessageW
MonitorFromWindow
SendDlgItemMessageW
InsertMenuW
MessageBoxW
SendMessageW
GetWindow
EndPaint
GetDC
DrawStateW
GetDesktopWindow
GetKeyboardType
GetDlgItemTextW
ValidateRgn
LoadMenuW
gdi32
SetTextColor
CreateHatchBrush
GetTextExtentPointW
SetStretchBltMode
CreateFontIndirectW
StretchBlt
GetRgnBox
GetObjectW
SetROP2
SetViewportOrgEx
comdlg32
GetOpenFileNameW
GetSaveFileNameW
advapi32
StartServiceW
RegUnLoadKeyW
RegSetKeySecurity
SetSecurityDescriptorOwner
ChangeServiceConfigW
RegGetKeySecurity
RegCloseKey
ControlService
OpenSCManagerW
shell32
ShellExecuteExW
Shell_NotifyIconW
oleaut32
SafeArrayPtrOfIndex
SysAllocStringLen
SafeArrayGetLBound
SysReAllocStringLen
Sections
.text Size: 673KB - Virtual size: 672KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 6.0MB - Virtual size: 6.0MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 15KB - Virtual size: 14KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ