2024-05-24_a2d20e367a897f2337ad6a42b04f79d7_bkransomware

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General

Target

2024-05-24_a2d20e367a897f2337ad6a42b04f79d7_bkransomware
Size

10.7MB
MD5

a2d20e367a897f2337ad6a42b04f79d7
SHA1

e3a4a362b4d6650e3d2a925d12d5e6cfd05d8184
SHA256

c801c6c306b3e98904215936c96489bd7fd57c759d22c74027e84cd04c2db951
SHA512

3f2f1d586b4e0c64282ee26d895873ccd83d6ec4b3653c237811972d81b72bd34635485aeda5b06ea0ea68f5b5b23054fb1e356b99adf9eb68fbfc6008ec5503
SSDEEP

196608:rk/Pa6XsTCW5xfwLIbJsv6tWKFdu9C+hs:rkLyZ6IbJsv6tWKFdu9Ch

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-24_a2d20e367a897f2337ad6a42b04f79d7_bkransomware

Files

2024-05-24_a2d20e367a897f2337ad6a42b04f79d7_bkransomware
.exe windows:5 windows x86 arch:x86

937d9198f9ad38f315ff894fba786483

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

GetLogicalDrives
GetLongPathNameW
RemoveDirectoryW
GetTempPathW
SetErrorMode
DeviceIoControl
CopyFileW
MoveFileW
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetStartupInfoW
GetModuleFileNameW
FlushFileBuffers
GetFileType
ReadFile
SetEndOfFile
SetFilePointerEx
WriteFile
CreateFileMappingW
MapViewOfFile
UnmapViewOfFile
MoveFileExW
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetStdHandle
SetFilePointer
ConnectNamedPipe
CreateNamedPipeW
GetExitCodeProcess
GetProcessId
MultiByteToWideChar
WideCharToMultiByte
GetTimeZoneInformation
GetGeoInfoW
GetUserGeoID
FindFirstFileExW
FindNextFileW
FreeLibrary
GetModuleHandleExW
ReadFileEx
PeekNamedPipe
CancelIo
SleepEx
GetModuleHandleA
WriteFileEx
ExitProcess
DisconnectNamedPipe
WaitNamedPipeW
GetOverlappedResult
SetHandleInformation
GetVolumeInformationW
lstrcmpW
GetDriveTypeW
GetSystemTimeAsFileTime
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
EncodePointer
FormatMessageW
RaiseException
RtlUnwind
GetCommandLineA
GetFullPathNameW
HeapAlloc
HeapReAlloc
IsDebuggerPresent
IsProcessorFeaturePresent
AreFileApisANSI
ExitThread
LoadLibraryExW
GetConsoleMode
ReadConsoleW
GetConsoleCP
SetFileAttributesW
SetStdHandle
UnhandledExceptionFilter
SetLastError
InitializeCriticalSectionAndSpinCount
CreateSemaphoreW
CreateTimerQueue
SignalObjectAndWait
GetLogicalProcessorInformation
CreateTimerQueueTimer
ChangeTimerQueueTimer
DeleteTimerQueueTimer
GetNumaHighestNodeNumber
GetProcessAffinityMask
SetThreadAffinityMask
RegisterWaitForSingleObject
UnregisterWait
HeapSize
GetVersionExW
VirtualAlloc
VirtualFree
VirtualProtect
GetThreadTimes
FreeLibraryAndExitThread
ReleaseSemaphore
InitializeSListHead
InterlockedPopEntrySList
InterlockedPushEntrySList
InterlockedFlushSList
QueryDepthSList
UnregisterWaitEx
GetProcessHeap
GetModuleFileNameA
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
SetEnvironmentVariableA
WriteConsoleW
LCMapStringW
EnumSystemLocalesW
GetStringTypeW
GetFileInformationByHandle
GetFileAttributesW
FindFirstFileW
FindClose
DeleteFileW
CreateDirectoryW
GetCurrentDirectoryW
GetFileAttributesExW
CreateFileW
GetTickCount
QueryPerformanceFrequency
QueryPerformanceCounter
GetUserDefaultUILanguage
GetCurrencyFormatW
GetTimeFormatW
GetDateFormatW
ResetEvent
LoadLibraryW
GetSystemDirectoryW
WaitForSingleObjectEx
GetConsoleWindow
OutputDebugStringW
WaitForMultipleObjects
GetSystemInfo
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
ResumeThread
TerminateThread
FindNextChangeNotification
GetThreadPriority
SetThreadPriority
GetCurrentThread
CreateThread
SwitchToThread
Sleep
CreateEventW
WaitForSingleObject
SetEvent
DuplicateHandle
GetCommandLineW
GetLocalTime
GetSystemTime
GetUserDefaultLCID
CompareStringW
GetCurrentProcessId
GlobalSize
LoadLibraryA
GetLocaleInfoW
GlobalUnlock
GlobalLock
GlobalAlloc
CheckRemoteDebuggerPresent
GetUserDefaultLangID
CreateProcessW
ExpandEnvironmentStringsW
IsValidLocale
LocalFree
GetProcAddress
GetModuleHandleW
GetCurrentThreadId
GetLastError
HeapFree
IsValidLanguageGroup
InitializeCriticalSection
ReleaseMutex
CreateMutexW
FindCloseChangeNotification
FindFirstChangeNotificationW
GetVolumeInformationA
CreateFileA
SetFileTime
OpenProcess
SetUnhandledExceptionFilter
TerminateProcess
GetCurrentProcess
Process32Next
Process32First
CreateToolhelp32Snapshot
DecodePointer
CloseHandle

user32

MessageBoxW
DrawIconEx
CharNextExA
PostThreadMessageW
CallNextHookEx
UnhookWindowsHookEx
SetWindowsHookExW
KillTimer
SetTimer
MsgWaitForMultipleObjectsEx
GetQueueStatus
SetWindowTextA
GetWindowTextA
EnumWindows
GetWindowThreadProcessId
DispatchMessageW
TranslateMessage
GetDoubleClickTime
MessageBeep
RealGetWindowClassW
GetDesktopWindow
SystemParametersInfoW
SendMessageW
PostMessageW
AttachThreadInput
DefWindowProcW
CreateWindowExW
IsChild
DestroyWindow
GetWindowTextW
SetCursorPos
NotifyWinEvent
SetMenuItemInfoW
TrackPopupMenuEx
GetMenu
MapVirtualKeyW
ToUnicode
ToAscii
GetKeyboardState
GetKeyState
IsZoomed
PeekMessageW
SetCaretPos
HideCaret
DestroyCaret
CreateCaret
RegisterWindowMessageW
GetKeyboardLayout
GetAsyncKeyState
RegisterClipboardFormatW
ChangeClipboardChain
SetClipboardViewer
LoadIconW
GetSysColor
EnumDisplayMonitors
GetMessageExtraInfo
TrackMouseEvent
GetClipboardFormatNameW
RegisterClassW
GetCursorInfo
GetIconInfo
CreateIconIndirect
CreateCursor
LoadCursorW
GetCaretBlinkTime
GetCursor
ShowWindow
FlashWindowEx
MoveWindow
SetWindowPos
EndPaint
GetWindowPlacement
SetWindowPlacement
IsWindowVisible
IsIconic
SetFocus
GetCapture
SetCapture
ReleaseCapture
GetSystemMetrics
GetSystemMenu
EnableMenuItem
GetForegroundWindow
SetForegroundWindow
GetDC
ReleaseDC
BeginPaint
GetMonitorInfoW
LoadImageW
GetSysColorBrush
ChildWindowFromPointEx
GetCursorPos
GetClientRect
GetFocus
RegisterClassExW
GetClassInfoW
UnregisterClassW
GetKeyboardLayoutList
GetAncestor
DestroyIcon
DestroyCursor
SetParent
GetParent
SetWindowLongW
GetWindowLongW
ScreenToClient
ClientToScreen
SetCursor
AdjustWindowRectEx
GetWindowRect
SetWindowTextW
InvalidateRect
SetWindowRgn
GetUpdateRect

netapi32

Netbios

shell32

SHGetSpecialFolderPathW
CommandLineToArgvW
SHBrowseForFolderW
SHGetPathFromIDListW
SHGetMalloc
ShellExecuteW
SHGetFileInfoW
Shell_NotifyIconW

ole32

CoTaskMemAlloc
CoGetMalloc
ReleaseStgMedium
CoTaskMemFree
DoDragDrop
CoCreateInstance
OleIsCurrentClipboard
OleFlushClipboard
StringFromGUID2
OleGetClipboard
OleSetClipboard
CoCreateGuid
CoInitialize
OleUninitialize
OleInitialize
RevokeDragDrop
RegisterDragDrop
CoLockObjectExternal
CoUninitialize

advapi32

RegCloseKey
RegQueryValueExW
OpenProcessToken
CopySid
FreeSid
GetLengthSid
GetTokenInformation
RegCreateKeyExW
RegDeleteKeyW
RegDeleteValueW
RegEnumKeyExW
RegEnumValueW
RegFlushKey
RegQueryInfoKeyW
RegSetValueExW
AddAccessAllowedAce
AllocateAndInitializeSid
InitializeAcl
InitializeSecurityDescriptor
SetSecurityDescriptorDacl
SetSecurityDescriptorGroup
SetSecurityDescriptorOwner
RegOpenKeyExW

ws2_32

WSASendTo
WSASend
WSARecvFrom
WSARecv
WSANtohs
WSANtohl
WSAIoctl
WSAHtonl
WSAConnect
WSAAccept
setsockopt
select
listen
htons
WSASocketW
closesocket
bind
__WSAFDIsSet
getsockopt
WSAGetLastError
gethostbyname
gethostbyaddr
ntohl
inet_addr
htonl
WSAAsyncSelect
WSACleanup
WSAStartup
gethostname
getpeername
getsockname

gdi32

GdiFlush
BitBlt
CombineRgn
CreateRectRgn
DeleteObject
OffsetRgn
GetDeviceCaps
CreateCompatibleBitmap
CreateCompatibleDC
CreateDCW
DeleteDC
SelectObject
EnumFontFamiliesExW
CreateFontIndirectW
GetFontData
GetStockObject
AddFontResourceExW
RemoveFontResourceExW
AddFontMemResourceEx
RemoveFontMemResourceEx
GetTextMetricsW
GetObjectW
GetTextFaceW
ChoosePixelFormat
DescribePixelFormat
GetPixelFormat
SetPixelFormat
SwapBuffers
CreateDIBSection
SelectClipRgn
GetBitmapBits
GetCharABCWidthsW
GetCharABCWidthsFloatW
GetGlyphOutlineW
GetOutlineTextMetricsW
GetTextExtentPoint32W
GetCharABCWidthsI
SetBkMode
SetGraphicsMode
SetTextColor
SetTextAlign
SetWorldTransform
ExtTextOutW
CreateBitmap
GetDIBits
GetRegionData

oleaut32

SysStringLen
VariantInit
VariantChangeType
SystemTimeToVariantTime
SysFreeString
SysAllocStringLen
SysAllocString

imm32

ImmGetDefaultIMEWnd
ImmGetContext
ImmReleaseContext
ImmAssociateContext
ImmGetCompositionStringW
ImmNotifyIME
ImmSetCompositionWindow
ImmSetCandidateWindow
ImmGetVirtualKey

winmm

PlaySoundW

iphlpapi

GetAdaptersInfo
GetAdaptersAddresses

Sections

.text
Size: 7.0MB - Virtual size: 7.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 3.2MB - Virtual size: 3.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 60KB - Virtual size: 114KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.qtmetad
Size: 512B - Virtual size: 272B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 292B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 18KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 233KB - Virtual size: 233KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

937d9198f9ad38f315ff894fba786483

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

netapi32

shell32

ole32

advapi32

ws2_32

gdi32

oleaut32

imm32

winmm

iphlpapi

Sections

.text Size: 7.0MB - Virtual size: 7.0MB

.rdata Size: 3.2MB - Virtual size: 3.2MB

.data Size: 60KB - Virtual size: 114KB

.qtmetad Size: 512B - Virtual size: 272B

_RDATA Size: 512B - Virtual size: 292B

.rsrc Size: 18KB - Virtual size: 18KB

.reloc Size: 233KB - Virtual size: 233KB

.text
Size: 7.0MB - Virtual size: 7.0MB

.rdata
Size: 3.2MB - Virtual size: 3.2MB

.data
Size: 60KB - Virtual size: 114KB

.qtmetad
Size: 512B - Virtual size: 272B

_RDATA
Size: 512B - Virtual size: 292B

.rsrc
Size: 18KB - Virtual size: 18KB

.reloc
Size: 233KB - Virtual size: 233KB