2024-08-17_f9b4dbdde9db72cdc38071e2fb9cb0cc_bkransomware

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General

Target

2024-08-17_f9b4dbdde9db72cdc38071e2fb9cb0cc_bkransomware
Size

8.5MB
MD5

f9b4dbdde9db72cdc38071e2fb9cb0cc
SHA1

517b5e7b7be6ab790bc951df659c741820182a03
SHA256

a17ba5a942e0dcc3d3b24f672a837381ffbae4126607029d5e89bb8bea49cbaf
SHA512

07706bf2fbc1d1648764e5daaebfd96f989056931cc843dd24b71c945d64f83a434ad6ec53cf8e859925d70d92fecb0122a14d81966a963a96704c9093c3631c
SSDEEP

196608:eGTqmCn/VjxNLQaDcDHV+U91HFLOyomFHKnP:reDnZzchLbHF

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-08-17_f9b4dbdde9db72cdc38071e2fb9cb0cc_bkransomware

Files

2024-08-17_f9b4dbdde9db72cdc38071e2fb9cb0cc_bkransomware
.exe windows:5 windows x86 arch:x86

851105b5f7e5f2c26faf6d5360234236

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

GetOEMCP
GetCPInfo
FindFirstFileExW
CreateDirectoryW
SetFilePointerEx
GetConsoleMode
ReadConsoleW
GetConsoleCP
GetStringTypeW
GetTimeZoneInformation
OutputDebugStringW
IsValidLocale
EnumSystemLocalesW
GetFileInformationByHandle
PeekNamedPipe
WriteConsoleW
SetEnvironmentVariableA
UnregisterWaitEx
QueryDepthSList
IsValidCodePage
InterlockedPushEntrySList
InterlockedPopEntrySList
InitializeSListHead
ReleaseSemaphore
VirtualFree
FreeLibraryAndExitThread
GetThreadTimes
UnregisterWait
RegisterWaitForSingleObject
SetThreadAffinityMask
GetProcessAffinityMask
GetNumaHighestNodeNumber
DeleteTimerQueueTimer
ChangeTimerQueueTimer
CreateTimerQueueTimer
GetLogicalProcessorInformation
GetThreadPriority
SwitchToThread
SignalObjectAndWait
WaitForSingleObjectEx
CreateTimerQueue
SetUnhandledExceptionFilter
CreateSemaphoreW
UnhandledExceptionFilter
FreeEnvironmentStringsW
GetEnvironmentStringsW
QueryPerformanceCounter
GetStartupInfoW
GetStdHandle
GetFileType
SetStdHandle
GetSystemTimeAsFileTime
VirtualQuery
VirtualAlloc
HeapQueryInformation
ExitThread
CreateThread
RtlUnwind
SystemTimeToTzSpecificLocalTime
AreFileApisANSI
GetModuleHandleExW
ExitProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetUserDefaultLCID
FindResourceExW
GetWindowsDirectoryW
SearchPathW
GetProfileIntW
VirtualProtect
GetTempPathW
GetTempFileNameW
GetFileTime
GetFileSizeEx
GetFileAttributesExW
FileTimeToLocalFileTime
SetErrorMode
FileTimeToSystemTime
lstrcmpiW
DuplicateHandle
WriteFile
UnlockFile
SetFilePointer
SetEndOfFile
LockFile
GetVolumeInformationW
GetFullPathNameW
FlushFileBuffers
FindFirstFileW
FindClose
GlobalGetAtomNameW
GetFileSize
GetFileAttributesW
CreateFileW
VerifyVersionInfoW
VerSetConditionMask
GetThreadLocale
DeleteFileW
GlobalFlags
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
GetLocaleInfoW
CompareStringW
GetCurrentDirectoryW
LocalReAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
CopyFileW
FormatMessageW
MulDiv
GlobalSize
GlobalUnlock
ResumeThread
SetThreadPriority
CreateEventW
SetEvent
GlobalFindAtomW
GlobalAddAtomW
GetSystemDirectoryW
EncodePointer
WritePrivateProfileStringW
GetPrivateProfileStringW
GetPrivateProfileIntW
LoadLibraryW
GetModuleHandleA
SetLastError
OutputDebugStringA
GlobalFree
FreeResource
lstrcmpW
GlobalDeleteAtom
GlobalLock
GlobalAlloc
LoadLibraryExW
FreeLibrary
GetCurrentThreadId
GetCurrentThread
ReadFile
CreateProcessW
CreatePipe
GetLocalTime
DecodePointer
HeapSize
RaiseException
InitializeCriticalSectionAndSpinCount
GetProcessHeap
HeapFree
HeapAlloc
HeapReAlloc
GetDriveTypeW
GetDiskFreeSpaceA
WaitForSingleObject
TerminateProcess
QueryDosDeviceW
GetLogicalDriveStringsW
GetModuleFileNameW
GetCurrentProcessId
Module32NextW
Process32NextW
OpenProcess
Process32FirstW
Module32FirstW
CreateToolhelp32Snapshot
GetFileAttributesA
GetEnvironmentVariableW
WideCharToMultiByte
LCMapStringW
MultiByteToWideChar
GetACP
GetVersionExW
GetSystemInfo
DeleteCriticalSection
GetCommandLineW
GetModuleHandleW
GetTickCount
CloseHandle
GetCurrentProcess
GetLastError
LocalFree
lstrcmpA
lstrcpyW
LocalAlloc
GetProcAddress
LoadLibraryA
FindResourceW
LoadResource
LockResource
SizeofResource
Sleep
LeaveCriticalSection
EnterCriticalSection
InterlockedFlushSList
InitializeCriticalSection

user32

KillTimer
SetTimer
RealChildWindowFromPoint
DeleteMenu
CopyImage
WindowFromPoint
ReleaseCapture
SetCapture
WaitMessage
SystemParametersInfoW
GetMenuItemInfoW
DestroyMenu
SendDlgItemMessageA
IsDialogMessageW
SetWindowTextW
CheckDlgButton
MoveWindow
ShowWindow
LoadMenuW
ClientToScreen
EndPaint
BeginPaint
ReleaseDC
GetWindowDC
TabbedTextOutW
GrayStringW
DrawTextExW
DrawTextW
RemoveMenu
InsertMenuW
GetMenuState
GetMenuStringW
GetDesktopWindow
GetNextDlgTabItem
EndDialog
CreateDialogIndirectParamW
GetWindowThreadProcessId
IsWindowEnabled
SetCursor
ShowOwnedPopups
GetActiveWindow
SetMenuItemInfoW
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
EnableMenuItem
CheckMenuItem
GetMonitorInfoW
MonitorFromWindow
WinHelpW
GetScrollInfo
SetScrollInfo
CallNextHookEx
UnhookWindowsHookEx
SetWindowsHookExW
GetLastActivePopup
GetTopWindow
GetClassNameW
CharNextW
SetWindowLongW
GetWindowLongW
EqualRect
CopyRect
ScreenToClient
AdjustWindowRectEx
GetWindowTextLengthW
GetWindowTextW
RemovePropW
GetPropW
SetPropW
ShowScrollBar
GetScrollRange
SetScrollRange
GetScrollPos
NotifyWinEvent
LockWindowUpdate
ValidateRect
SetForegroundWindow
GetForegroundWindow
SetActiveWindow
TrackPopupMenu
GetMenuItemCount
GetMenuItemID
GetSubMenu
SetMenu
GetMenu
GetCapture
GetKeyState
SetFocus
GetDlgCtrlID
GetDlgItem
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
EnableScrollBar
GetDoubleClickTime
GetIconInfo
SendMessageW
EnableWindow
LoadIconW
InvalidateRect
UpdateWindow
SetWindowPlacement
GetWindowPlacement
IsChild
IsWindow
GetClassInfoExW
GetClassInfoW
RegisterClassW
CallWindowProcW
GetMessageTime
GetMessagePos
PeekMessageW
DrawIconEx
IsRectEmpty
OffsetRect
InflateRect
FillRect
DrawFocusRect
GetSysColorBrush
GetSysColor
CopyAcceleratorTableW
InvalidateRgn
SetRect
IntersectRect
GetNextDlgGroupItem
MessageBeep
SetLayeredWindowAttributes
SetRectEmpty
EnumDisplayMonitors
SetParent
MonitorFromPoint
OpenClipboard
CloseClipboard
SetClipboardData
MapWindowPoints
RedrawWindow
EmptyClipboard
DestroyIcon
LoadImageW
TrackMouseEvent
IsZoomed
CharUpperW
GetClassLongW
GetAsyncKeyState
MessageBoxW
GetCursorPos
CreatePopupMenu
AppendMenuW
GetDC
GetSystemMenu
IsIconic
GetSystemMetrics
UpdateLayeredWindow
GetClientRect
DrawIcon
GetWindowRect
LoadBitmapW
SetWindowRgn
PtInRect
DefWindowProcW
LoadCursorW
RegisterClassExW
GetMessageW
TranslateMessage
DispatchMessageW
DestroyWindow
CreateWindowExW
UnregisterClassW
PostMessageW
PostQuitMessage
SetWindowPos
SetWindowContextHelpId
CopyIcon
GetMenuDefaultItem
SetMenuDefaultItem
IsMenu
SetCursorPos
UnionRect
SetScrollPos
BringWindowToTop
GetParent
GetWindow
MapDialogRect
RegisterWindowMessageW
DrawEdge
DrawFrameControl
IsWindowVisible
GetFocus
DrawStateW
ModifyMenuW
DestroyAcceleratorTable
SetClassLongW
GetUpdateRect
GetWindowRgn
DestroyCursor
CreateMenu
InvertRect
HideCaret
GetComboBoxInfo
TranslateMDISysAccel
DefMDIChildProcW
DefFrameProcW
DrawMenuBar
MapVirtualKeyExW
IsCharLowerW
PostThreadMessageW
IsClipboardFormatAvailable
FrameRect
CharUpperBuffW
SubtractRect
GetKeyNameTextW
CreateAcceleratorTableW
MapVirtualKeyW
GetKeyboardState
GetKeyboardLayout
ToUnicodeEx
RegisterClipboardFormatW
ReuseDDElParam
UnpackDDElParam
InsertMenuItemW
TranslateAcceleratorW
LoadAcceleratorsW
ScrollWindow

gdi32

CreatePen
CreatePatternBrush
Escape
ExcludeClipRect
GetClipBox
GetObjectType
GetViewportExtEx
GetWindowExtEx
IntersectClipRect
LineTo
PtVisible
RectVisible
RestoreDC
SaveDC
SelectClipRgn
ExtSelectClipRgn
SelectObject
SelectPalette
SetBkMode
SetMapMode
SetLayout
GetLayout
SetPolyFillMode
SetROP2
SetTextAlign
MoveToEx
TextOutW
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
BitBlt
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
CreateFontIndirectW
GetRgnBox
GetMapMode
SetRectRgn
DPtoLP
CreateCompatibleBitmap
CreateDIBitmap
EnumFontFamiliesW
GetTextCharsetInfo
RealizePalette
SetPixel
CreateDIBSection
SetDIBColorTable
CreateRoundRectRgn
Rectangle
OffsetRgn
RoundRect
CreatePalette
GetPaletteEntries
GetNearestPaletteIndex
GetSystemPaletteEntries
EnumFontFamiliesExW
ExtFloodFill
SetPaletteEntries
FillRgn
FrameRgn
GetBoundsRect
PtInRegion
GetViewportOrgEx
LPtoDP
GetWindowOrgEx
SetPixelV
GetTextFaceW
GetDeviceCaps
CreateDCW
CopyMetaFileW
DeleteObject
CreateBitmap
SetTextColor
SetBkColor
GetTextMetricsW
Polyline
Polygon
CreatePolygonRgn
ExtTextOutW
PatBlt
GetTextExtentPoint32W
GetTextColor
GetBkColor
Ellipse
CreateSolidBrush
CreateRectRgnIndirect
CreateHatchBrush
CreateEllipticRgn
DeleteDC
GetStockObject
CreateFontW
CombineRgn
GetPixel
CreateRectRgn
StretchBlt
OffsetViewportOrgEx
CreateCompatibleDC
GetObjectW

msimg32

TransparentBlt
AlphaBlend

winspool.drv

DocumentPropertiesW
ClosePrinter
OpenPrinterW

advapi32

RegEnumValueW
GetTokenInformation
LookupPrivilegeValueW
AdjustTokenPrivileges
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
RegCreateKeyExW
RegDeleteKeyW
RegDeleteValueW
RegEnumKeyExW
OpenProcessToken
RegQueryValueW
RegEnumKeyW
RegSetValueExW

shell32

SHGetFileInfoW
ShellExecuteW
SHGetSpecialFolderLocation
SHGetPathFromIDListW
SHGetMalloc
SHBrowseForFolderW
SHGetDesktopFolder
DragFinish
DragQueryFileW
ShellExecuteExW
SHAppBarMessage

comctl32

InitCommonControlsEx

shlwapi

PathFindFileNameW
PathIsUNCW
PathStripToRootW
PathRemoveFileSpecW
PathFindExtensionW
StrFormatKBSizeW

uxtheme

GetThemePartSize
GetWindowTheme
GetThemeSysColor
IsThemeBackgroundPartiallyTransparent
DrawThemeParentBackground
OpenThemeData
CloseThemeData
DrawThemeBackground
GetThemeColor
GetCurrentThemeName
IsAppThemed
DrawThemeText

ole32

OleIsCurrentClipboard
DoDragDrop
OleGetClipboard
CoLockObjectExternal
RegisterDragDrop
RevokeDragDrop
OleLockRunning
CoInitializeEx
CoRevokeClassObject
CoRegisterMessageFilter
OleCreateMenuDescriptor
OleDestroyMenuDescriptor
OleFlushClipboard
OleUninitialize
OleInitialize
CoFreeUnusedLibraries
CoDisconnectObject
CreateStreamOnHGlobal
OleTranslateAccelerator
IsAccelerator
CreateILockBytesOnHGlobal
StgOpenStorageOnILockBytes
StgCreateDocfileOnILockBytes
CoGetClassObject
ReleaseStgMedium
OleDuplicateData
CoTaskMemAlloc
CLSIDFromProgID
CLSIDFromString
CoUninitialize
CoTaskMemFree
CoCreateInstance
CoCreateGuid
CoInitialize

oleaut32

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

oledlg

OleUIBusyW

gdiplus

GdipAlloc
GdipFree
GdiplusStartup
GdipCloneImage
GdipDisposeImage
GdipGetImageGraphicsContext
GdipGetImageWidth
GdipGetImageHeight
GdipGetImagePixelFormat
GdipGetImagePalette
GdipGetImagePaletteSize
GdipCreateBitmapFromStream
GdipCreateBitmapFromScan0
GdipBitmapLockBits
GdipBitmapUnlockBits
GdipDeleteGraphics
GdipDrawImageI
GdipCreateBitmapFromHBITMAP
GdipCreateFromHDC
GdipSetInterpolationMode
GdipDrawImageRectI
GdiplusShutdown

ws2_32

sendto
htonl
ntohl
recvfrom
WSAAsyncSelect
WSAIoctl
inet_ntoa
gethostbyname
send
inet_addr
WSACleanup
connect
recv
accept
closesocket
listen
bind
htons
WSAStartup
setsockopt
WSAGetLastError
socket

crypt32

CryptDecodeObject
CertGetNameStringW
CryptQueryObject
CertCloseStore
CryptMsgClose
CryptMsgGetParam
CertFindCertificateInStore
CertFreeCertificateContext

version

GetFileVersionInfoA
VerQueryValueA
GetFileVersionInfoSizeA

wininet

InternetOpenW
InternetOpenUrlW
InternetReadFile

psapi

EnumProcessModules
GetProcessImageFileNameW
GetModuleFileNameExW

oleacc

AccessibleObjectFromWindow
LresultFromObject
CreateStdAccessibleObject

imm32

ImmGetContext
ImmGetOpenStatus
ImmReleaseContext

winmm

PlaySoundW

Sections

.text
Size: 1.9MB - Virtual size: 1.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 401KB - Virtual size: 401KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 33KB - Virtual size: 74KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 6.1MB - Virtual size: 6.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 141KB - Virtual size: 141KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

851105b5f7e5f2c26faf6d5360234236

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

msimg32

winspool.drv

advapi32

shell32

comctl32

shlwapi

uxtheme

ole32

oleaut32

oledlg

gdiplus

ws2_32

crypt32

version

wininet

psapi

oleacc

imm32

winmm

Sections

.text Size: 1.9MB - Virtual size: 1.9MB

.rdata Size: 401KB - Virtual size: 401KB

.data Size: 33KB - Virtual size: 74KB

.rsrc Size: 6.1MB - Virtual size: 6.1MB

.reloc Size: 141KB - Virtual size: 141KB

.text
Size: 1.9MB - Virtual size: 1.9MB

.rdata
Size: 401KB - Virtual size: 401KB

.data
Size: 33KB - Virtual size: 74KB

.rsrc
Size: 6.1MB - Virtual size: 6.1MB

.reloc
Size: 141KB - Virtual size: 141KB