2024-05-31_a8e78e081947c61f33bd7e96cc899072_bkransomware

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General

Target

2024-05-31_a8e78e081947c61f33bd7e96cc899072_bkransomware
Size

4.8MB
MD5

a8e78e081947c61f33bd7e96cc899072
SHA1

79e80b00b81b2372bdcbe44c49dacc14325ee833
SHA256

a1b504f7a1b9474a95052724f022206a6c6cdc168c2431d8a3723f66ecc8ef1e
SHA512

6f2a0cb40dc12a7f8daa80f83f27cfefcabcc018e9efd5f30fa412af8c296ff5dc209c0b9ebf533356d4429e464f8ce0a840b54b1eb225c8f2449b6c92bcc627
SSDEEP

98304:hpa+NjyhYWIcSGWJpsRgUHGuhJqvgwX26/ovul7+mikRzftn4T:La+YYZcdW/DUHGuhJEXBgWRVikRjuT

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-31_a8e78e081947c61f33bd7e96cc899072_bkransomware

Files

2024-05-31_a8e78e081947c61f33bd7e96cc899072_bkransomware
.exe windows:5 windows x86 arch:x86

45779d68bf9ce2755142ee05c0b2a5e2

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

PDB Paths

C:\work\msi\trunk\_MsiBuildSystem\bin\SfxMaker\stub.pdb

Imports

kernel32

EncodePointer
FreeResource
LoadLibraryExW
GlobalDeleteAtom
lstrcmpW
LoadLibraryA
GlobalAddAtomW
GlobalFindAtomW
GetFileSizeEx
GetFileTime
FlushFileBuffers
GetVolumeInformationW
LockFile
UnlockFile
DuplicateHandle
GetThreadLocale
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GlobalReAlloc
GlobalHandle
LocalAlloc
LocalReAlloc
GetCurrentThread
lstrcmpA
GetPrivateProfileIntW
GetPrivateProfileStringW
WritePrivateProfileStringW
GlobalFlags
CompareStringW
GetLocaleInfoW
GetSystemDefaultUILanguage
SetErrorMode
GetTickCount
RtlUnwind
ExitThread
IsDebuggerPresent
IsProcessorFeaturePresent
GetSystemTimeAsFileTime
ExitProcess
GetModuleHandleExW
SetStdHandle
GetFileType
HeapQueryInformation
GetSystemInfo
VirtualProtect
VirtualQuery
GetStartupInfoW
QueryPerformanceCounter
GetEnvironmentStringsW
FreeEnvironmentStringsW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsValidCodePage
GetOEMCP
GetCPInfo
GetStringTypeW
GetTimeZoneInformation
GetConsoleCP
GetConsoleMode
ReadConsoleW
SetFilePointerEx
OutputDebugStringW
LCMapStringW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
WriteConsoleW
SetEnvironmentVariableA
GlobalFree
GlobalUnlock
GlobalLock
GlobalAlloc
GetModuleHandleA
OutputDebugStringA
GetACP
MulDiv
GetVersion
lstrlenA
EnumResourceNamesW
CreateProcessW
GetCurrentProcess
ResumeThread
SuspendThread
SetThreadPriority
GetCurrentThreadId
GetDriveTypeW
GetCommandLineW
GetModuleFileNameW
LoadLibraryW
FreeLibrary
SetLastError
MapViewOfFileEx
GetFileAttributesExW
FindResourceExW
GetModuleHandleW
CreateFileMappingW
UnmapViewOfFile
GetCurrentProcessId
GetProcAddress
InitializeCriticalSectionAndSpinCount
RaiseException
GetProcessHeap
HeapSize
HeapFree
HeapReAlloc
HeapAlloc
DecodePointer
Sleep
GetExitCodeProcess
GetFileAttributesW
GetDiskFreeSpaceExW
GetUserDefaultLangID
GetUserDefaultUILanguage
FindResourceW
SizeofResource
LoadResource
LockResource
WaitForMultipleObjects
LeaveCriticalSection
EnterCriticalSection
GetStdHandle
FileTimeToSystemTime
SetFilePointer
SetEndOfFile
ReadFile
WriteFile
GetFileSize
FormatMessageA
FindNextFileW
FindFirstFileW
GetLogicalDriveStringsW
FindClose
MoveFileW
DeleteFileW
SetFileAttributesW
CreateFileW
GetFullPathNameW
RemoveDirectoryW
CreateDirectoryW
GetCurrentDirectoryW
GetTempPathW
GetSystemDirectoryW
lstrlenW
SetFileTime
FormatMessageW
LocalFree
FileTimeToLocalFileTime
DeleteCriticalSection
CreateEventW
CloseHandle
WaitForSingleObject
ResetEvent
SetEvent
InitializeCriticalSection
GetLastError
GetVersionExW
VirtualFree
VirtualAlloc
WideCharToMultiByte
CreateThread
MultiByteToWideChar

user32

RealChildWindowFromPoint
IntersectRect
LoadCursorW
GetSysColorBrush
MessageBeep
GetNextDlgGroupItem
SetWindowContextHelpId
SetCursor
PostQuitMessage
GetCursorPos
TranslateMessage
GetMessageW
GetDesktopWindow
GetActiveWindow
GetNextDlgTabItem
EndDialog
CreateDialogIndirectParamW
IsDialogMessageW
SetWindowTextW
IsWindowEnabled
SetDlgItemTextW
MoveWindow
ShowWindow
GetMonitorInfoW
MonitorFromWindow
WinHelpW
CallNextHookEx
UnhookWindowsHookEx
SetWindowsHookExW
GetWindow
GetLastActivePopup
GetTopWindow
GetClassNameW
GetClassLongW
SetWindowLongW
GetWindowLongW
PtInRect
EqualRect
DestroyMenu
MapWindowPoints
MessageBoxW
AdjustWindowRectEx
GetWindowTextLengthW
GetWindowTextW
RemovePropW
GetPropW
SetPropW
RedrawWindow
ValidateRect
GetForegroundWindow
SetActiveWindow
UpdateWindow
GetMenu
GetCapture
GetKeyState
SetFocus
GetDlgCtrlID
GetDlgItem
IsWindowVisible
SetWindowPos
DestroyWindow
IsChild
IsWindow
CreateWindowExW
GetClassInfoExW
GetClassInfoW
RegisterClassW
CallWindowProcW
DefWindowProcW
GetMessageTime
GetMessagePos
DispatchMessageW
LoadBitmapW
SetMenuItemInfoW
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
EnableMenuItem
CheckMenuItem
PostThreadMessageW
RegisterClipboardFormatW
IsRectEmpty
SetRect
InvalidateRgn
CopyAcceleratorTableW
ReleaseCapture
SetCapture
GetFocus
ScreenToClient
OffsetRect
CharNextW
KillTimer
SetTimer
CopyRect
ClientToScreen
EndPaint
BeginPaint
GetWindowDC
TabbedTextOutW
GrayStringW
DrawTextExW
DrawTextW
GetMenuItemCount
GetMenuItemID
GetSubMenu
GetParent
SendDlgItemMessageA
SystemParametersInfoW
ReleaseDC
GetDC
GetWindowThreadProcessId
MsgWaitForMultipleObjects
PeekMessageW
FillRect
GetSysColor
GetClientRect
InvalidateRect
UnregisterClassW
MapDialogRect
DestroyIcon
GetWindowRect
SetForegroundWindow
ReplyMessage
RegisterWindowMessageW
LoadIconW
LoadImageW
GetSystemMetrics
PostMessageW
SendMessageW
EnableWindow
CharUpperW
SetMenu

gdi32

SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
OffsetViewportOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CreateRectRgnIndirect
GetMapMode
GetBkColor
GetTextColor
GetRgnBox
ExtTextOutW
TextOutW
MoveToEx
SetTextColor
CreateFontIndirectW
SetMapMode
SetBkColor
SelectObject
ExtSelectClipRgn
SaveDC
RestoreDC
RectVisible
PtVisible
LineTo
GetWindowExtEx
GetViewportExtEx
GetStockObject
GetClipBox
Escape
DeleteObject
DeleteDC
CreatePen
CreateBitmap
CreateSolidBrush
GetObjectW
GetDeviceCaps

winspool.drv

DocumentPropertiesW
OpenPrinterW
ClosePrinter

advapi32

RegCreateKeyExW
RegEnumValueW
RegQueryValueW
RegEnumKeyW
RegSetValueExW
RegDeleteValueW
RegDeleteKeyW
RegQueryValueExW
RegOpenKeyExW
RegCloseKey

shell32

ShellExecuteW
SHGetPathFromIDListW
SHBrowseForFolderW
ShellExecuteExW
ord165

comctl32

InitCommonControlsEx

shlwapi

PathIsUNCW
PathStripToRootW
PathFindExtensionW
PathFindFileNameW

ole32

CoFreeUnusedLibraries
CreateILockBytesOnHGlobal
StgOpenStorageOnILockBytes
StgCreateDocfileOnILockBytes
CoGetClassObject
CLSIDFromProgID
CLSIDFromString
CoCreateGuid
OleInitialize
CoTaskMemAlloc
CoTaskMemFree
CoUninitialize
OleFlushClipboard
OleUninitialize
CoRevokeClassObject
CoInitialize
CoCreateInstance
OleIsCurrentClipboard
CoRegisterMessageFilter

oleaut32

OleCreateFontIndirect
SafeArrayDestroy
VariantTimeToSystemTime
SystemTimeToVariantTime
SysStringLen
VariantChangeType
VariantInit
SysAllocString
VariantClear
VariantCopy
SysFreeString
SysAllocStringLen

oledlg

OleUIBusyW

oleacc

CreateStdAccessibleObject
LresultFromObject

Sections

.text
Size: 413KB - Virtual size: 413KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 133KB - Virtual size: 133KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 17KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 438KB - Virtual size: 438KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 31KB - Virtual size: 30KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

45779d68bf9ce2755142ee05c0b2a5e2

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

gdi32

winspool.drv

advapi32

shell32

comctl32

shlwapi

ole32

oleaut32

oledlg

oleacc

Sections

.text Size: 413KB - Virtual size: 413KB

.rdata Size: 133KB - Virtual size: 133KB

.data Size: 17KB - Virtual size: 42KB

.rsrc Size: 438KB - Virtual size: 438KB

.reloc Size: 31KB - Virtual size: 30KB

.text
Size: 413KB - Virtual size: 413KB

.rdata
Size: 133KB - Virtual size: 133KB

.data
Size: 17KB - Virtual size: 42KB

.rsrc
Size: 438KB - Virtual size: 438KB

.reloc
Size: 31KB - Virtual size: 30KB