Static task
static1
Behavioral task
behavioral1
Sample
KrampUI.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
KrampUI.exe
Resource
win10v2004-20240226-en
General
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Target
KrampUI.exe
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Size
16.9MB
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MD5
4895023a734b9ed158e3c9abd3183e41
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SHA1
c19ecd34798b2178bc3df1380226fbea3b3d6c36
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SHA256
f53b6fc1294b0a20d5bf127c42f968a9c560df6bc4da073bfa0445b0dfc5de43
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SHA512
e2296640a7294b89ae73cf3b7dffff06361f90f206ee77299825e0833bd36d1e9e8e1bc4d74fc85f82677407fa4eccf0eb5efc8b649259b2cdc9f16f7cf17254
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SSDEEP
196608:a8My2G9U/ed3uu9MSuU68y8fbgvF+M5ZLelGt64UcxE7ZM9t:a8My2G9U0+1xqTCwML9d1Ee9t
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource KrampUI.exe
Files
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KrampUI.exe.exe windows:6 windows x64 arch:x64
1f7417a48051ef81cb64d6becc5aaf98
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
ntdll
NtCancelIoFileEx
RtlNtStatusToDosError
NtQuerySystemInformation
NtCreateFile
RtlCaptureContext
RtlVirtualUnwind
RtlLookupFunctionEntry
NtReadFile
RtlGetNtVersionNumbers
NtQueryInformationProcess
RtlGetVersion
NtDeviceIoControlFile
RtlUnwindEx
NtWriteFile
RtlPcToFileHeader
kernel32
GlobalMemoryStatusEx
K32GetPerformanceInfo
GetTempPathW
GetSystemTimeAsFileTime
GetCurrentThread
CreateThread
WriteConsoleW
UpdateProcThreadAttribute
InitializeProcThreadAttributeList
CreateProcessW
CreateFileW
SleepConditionVariableSRW
TryAcquireSRWLockExclusive
LoadLibraryExA
GetProcAddress
FreeLibrary
GetWindowsDirectoryW
GetSystemDirectoryW
WaitForMultipleObjects
CreateEventW
WaitForSingleObject
ReadFileEx
CreateNamedPipeW
FormatMessageW
GetFullPathNameW
ExitProcess
CancelIo
CopyFileExW
GetFinalPathNameByHandleW
ReleaseSRWLockShared
AcquireSRWLockShared
GetModuleHandleA
RemoveDirectoryW
lstrlenW
MoveFileExW
GetUserDefaultLocaleName
DeleteFileW
LoadLibraryA
GlobalUnlock
FindFirstFileW
CreateDirectoryW
GetFileInformationByHandleEx
GlobalLock
GlobalSize
FindClose
GlobalAlloc
FindNextFileW
HeapReAlloc
QueryPerformanceFrequency
GlobalFree
WideCharToMultiByte
MultiByteToWideChar
WakeConditionVariable
WaitForSingleObjectEx
WakeAllConditionVariable
GetProcessId
TerminateProcess
SleepEx
WriteFileEx
GetStdHandle
GetUserDefaultUILanguage
LCIDToLocaleName
SetFilePointerEx
LoadLibraryW
SetFileInformationByHandle
GetCommandLineW
SetEnvironmentVariableW
GetEnvironmentStringsW
GetCurrentDirectoryW
SetLastError
QueryPerformanceCounter
SetWaitableTimer
CreateWaitableTimerExW
SwitchToThread
SetThreadStackGuarantee
AddVectoredExceptionHandler
CompareStringOrdinal
DeleteProcThreadAttributeList
FreeEnvironmentStringsW
GetConsoleMode
GetFileInformationByHandle
SetFileCompletionNotificationModes
GetOverlappedResult
ReadFile
CreateMutexA
GetCurrentProcessId
PostQueuedCompletionStatus
GetQueuedCompletionStatusEx
CreateIoCompletionPort
SetHandleInformation
ReadProcessMemory
VirtualQueryEx
GetExitCodeProcess
GetProcessIoCounters
GetSystemTimes
GetProcessTimes
LocalFree
HeapAlloc
OpenProcess
HeapFree
GetProcessHeap
GetFileAttributesW
GetModuleFileNameW
OutputDebugStringA
TlsFree
GetSystemInfo
GetLastError
LoadLibraryExW
CreateMutexW
GetEnvironmentVariableW
ReleaseMutex
GetCurrentThreadId
Sleep
GetCurrentProcess
DuplicateHandle
CreatePipe
GetModuleHandleW
InitializeSListHead
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
CloseHandle
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
IsProcessorFeaturePresent
RaiseException
EncodePointer
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
OutputDebugStringW
user32
DispatchMessageA
MsgWaitForMultipleObjectsEx
RegisterRawInputDevices
RegisterWindowMessageA
EnumChildWindows
SetWindowDisplayAffinity
RegisterHotKey
CreateIcon
RegisterClipboardFormatW
DestroyIcon
CloseClipboard
UnregisterHotKey
GetDC
SetClipboardData
EmptyClipboard
GetClipboardData
IsClipboardFormatAvailable
OpenClipboard
SetWindowLongW
GetRawInputData
ShowWindow
GetSystemMenu
SendInput
GetKeyboardState
AttachThreadInput
EnableMenuItem
CallNextHookEx
ToUnicodeEx
PostQuitMessage
GetKeyboardLayout
CreateAcceleratorTableW
SetWindowsHookExA
AppendMenuW
CheckMenuItem
GetClipCursor
ClipCursor
SetForegroundWindow
TrackPopupMenu
CreatePopupMenu
EnumDisplayMonitors
MonitorFromPoint
SetWindowTextW
GetWindowTextLengthW
GetWindowTextW
GetWindowRect
AdjustWindowRectEx
CreateMenu
IsWindowVisible
SetMenuItemInfoW
SystemParametersInfoA
DestroyAcceleratorTable
VkKeyScanW
SetCapture
RedrawWindow
GetClientRect
GetCursorPos
ReleaseCapture
MapVirtualKeyExW
ShowCursor
GetAsyncKeyState
PostMessageW
SetMenu
IsIconic
GetKeyState
GetActiveWindow
GetWindowThreadProcessId
FlashWindowEx
ClientToScreen
GetForegroundWindow
SetCursorPos
SetWindowPos
InvalidateRgn
LoadCursorW
SetCursor
PeekMessageW
TranslateMessage
DispatchMessageW
CreateWindowExW
GetWindowLongPtrW
SetWindowLongPtrW
SendMessageW
FindWindowW
SetWindowPlacement
GetWindowPlacement
ChangeDisplaySettingsExW
GetMonitorInfoW
MonitorFromWindow
GetMenu
CloseTouchInputHandle
ScreenToClient
GetTouchInputInfo
TrackMouseEvent
MonitorFromRect
GetWindowLongW
IsWindow
TranslateAcceleratorW
GetAncestor
GetMessageW
MapVirtualKeyW
GetUpdateRect
PostThreadMessageW
ValidateRect
DefWindowProcW
RegisterClassExW
GetMessageA
RegisterClassW
DestroyWindow
IsProcessDPIAware
RegisterTouchWindow
GetSystemMetrics
gdi32
CreateRectRgn
DeleteObject
GetDeviceCaps
dwmapi
DwmEnableBlurBehindWindow
ole32
CoTaskMemFree
OleInitialize
RegisterDragDrop
RevokeDragDrop
CoInitializeEx
CoTaskMemAlloc
CoCreateInstance
CoUninitialize
CreateStreamOnHGlobal
comctl32
DefSubclassProc
SetWindowSubclass
RemoveWindowSubclass
TaskDialogIndirect
shell32
SHAppBarMessage
Shell_NotifyIconGetRect
Shell_NotifyIconW
CommandLineToArgvW
ShellExecuteW
SHGetKnownFolderPath
SHCreateItemFromParsingName
DragQueryFileW
DragFinish
pdh
PdhCloseQuery
PdhRemoveCounter
PdhGetFormattedCounterValue
PdhAddEnglishCounterW
PdhOpenQueryA
PdhCollectQueryData
powrprof
CallNtPowerInformation
advapi32
RegOpenKeyExW
RegCloseKey
CopySid
GetLengthSid
IsValidSid
RegQueryValueExW
RegGetValueW
GetTokenInformation
OpenProcessToken
EventUnregister
EventRegister
EventWriteTransfer
EventSetInformation
SystemFunction036
psapi
GetModuleFileNameExW
GetProcessMemoryInfo
secur32
QueryContextAttributesW
AcquireCredentialsHandleA
EncryptMessage
FreeContextBuffer
FreeCredentialsHandle
ApplyControlToken
AcceptSecurityContext
DeleteSecurityContext
DecryptMessage
InitializeSecurityContextW
oleaut32
SetErrorInfo
SysFreeString
GetErrorInfo
SysStringLen
uxtheme
SetWindowTheme
bcrypt
BCryptGenRandom
ws2_32
bind
ioctlsocket
getpeername
connect
WSASocketW
getsockopt
getsockname
shutdown
recv
send
WSASend
setsockopt
WSAIoctl
closesocket
WSAGetLastError
WSAStartup
WSACleanup
getaddrinfo
freeaddrinfo
crypt32
CertOpenStore
CertCloseStore
CertAddCertificateContextToStore
CertEnumCertificatesInStore
CertDuplicateCertificateChain
CertFreeCertificateChain
CertDuplicateStore
CertGetCertificateChain
CertVerifyCertificateChainPolicy
CertDuplicateCertificateContext
CertFreeCertificateContext
api-ms-win-crt-string-l1-1-0
strcpy_s
wcslen
_wcsicmp
strlen
wcsncmp
api-ms-win-crt-math-l1-1-0
round
pow
__setusermatherr
trunc
floor
api-ms-win-crt-heap-l1-1-0
free
_set_new_mode
calloc
_callnewh
malloc
api-ms-win-crt-runtime-l1-1-0
_initialize_onexit_table
abort
strerror
_crt_atexit
terminate
_register_onexit_function
_register_thread_local_exe_atexit_callback
_c_exit
_seh_filter_exe
_cexit
__p___argv
__p___argc
_set_app_type
_exit
exit
_initterm_e
_initterm
_get_initial_narrow_environment
_initialize_narrow_environment
_configure_narrow_argv
api-ms-win-crt-convert-l1-1-0
_ultow_s
wcstol
api-ms-win-crt-stdio-l1-1-0
_set_fmode
__p__commode
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
Sections
.text Size: 6.6MB - Virtual size: 6.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 9.8MB - Virtual size: 9.8MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 13KB - Virtual size: 25KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 349KB - Virtual size: 348KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 500B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 10KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 65KB - Virtual size: 64KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ