yk[.]exe | Triage

Resubmissions

13/02/2023, 07:54

230213-jryhwabg87 3

11/02/2021, 09:13

210211-y1csq58stn 1

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General

Target

yk.exe
Size

1.6MB
MD5

4bfc360791eda8959554af2239ee9d00
SHA1

60ec9c4caeb1d9402862ee411c6d84bf923fcf09
SHA256

1bfa8af4b51d9fc54d4baa49df27116f44ce269da9123625c1f2ba17289ea2cd
SHA512

49e7389fe9c15cb532a33311062f006dd926a3e8ea85021ea6db611af8a78411f7a329a8ca583b4fc946e4fe5ee94e993e7c35a018610e53361dfbacba7076b8
SSDEEP

49152:d7BOw4P8wVGhizV569oEZ9pEZF6AU4DNgzpUSJd4PjejDKZk2I:jOcwVGhizV5ZEvpEZF6AU4DKVJWPjejD

Score

1^/10

Malware Config

Signatures

Files

yk.exe
.exe windows x86

4f9bca85bdf5304a886532f0abf0d699

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

GetConsoleMode
GetStringTypeW
CreateFileW
SetEnvironmentVariableA
QueryPerformanceCounter
HeapCreate
SetHandleCount
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetStdHandle
IsValidCodePage
TerminateProcess
IsDebuggerPresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
IsProcessorFeaturePresent
GetFileType
SetStdHandle
GetSystemTimeAsFileTime
HeapSize
HeapQueryInformation
GetLastError
ExitThread
HeapReAlloc
VirtualQuery
VirtualAlloc
HeapFree
HeapAlloc
GetStartupInfoW
HeapSetInformation
GetCommandLineA
ExitProcess
GetConsoleCP
EncodePointer
RaiseException
RtlUnwind
FindResourceExW
VirtualProtect
SearchPathA
GetProfileIntA
GetTempPathA
GetTempFileNameA
GetFileTime
GetFileSizeEx
GetFileAttributesA
FileTimeToLocalFileTime
GetFileAttributesExA
SetErrorMode
GetNumberFormatA
GetWindowsDirectoryA
GetFullPathNameA
GetVolumeInformationA
FindFirstFileA
FindClose
GetCurrentProcess
DuplicateHandle
SetEndOfFile
UnlockFile
LockFile
FlushFileBuffers
WriteFile
lstrcmpiA
GetTimeZoneInformation
CompareStringW
DecodePointer
LCMapStringW
lstrcpyA
DeleteFileA
GetCurrentDirectoryA
FileTimeToSystemTime
GetThreadLocale
GetACP
GetOEMCP
GetCPInfo
InterlockedIncrement
GlobalFlags
TlsFree
LocalReAlloc
TlsSetValue
TlsAlloc
GlobalHandle
GlobalReAlloc
TlsGetValue
LocalAlloc
InterlockedDecrement
GetModuleFileNameW
ReleaseActCtx
CreateActCtxW
GetPrivateProfileStringA
WritePrivateProfileStringA
GetPrivateProfileIntA
ResumeThread
SetThreadPriority
GetCurrentThread
GetUserDefaultUILanguage
ConvertDefaultLocale
GetSystemDefaultUILanguage
GetLocaleInfoA
InterlockedExchange
lstrcmpA
GetModuleHandleW
GetCurrentProcessId
GetModuleFileNameA
CopyFileA
GlobalSize
GlobalLock
GlobalUnlock
FormatMessageA
LocalFree
lstrlenW
MulDiv
lstrlenA
FindResourceA
FreeResource
GetCurrentThreadId
GlobalGetAtomNameA
GlobalAddAtomA
GlobalFindAtomA
GlobalDeleteAtom
GetVersionExA
GetModuleHandleA
FreeLibrary
GetProcAddress
CompareStringA
LoadLibraryW
LoadLibraryA
ActivateActCtx
DeactivateActCtx
SetLastError
MultiByteToWideChar
lstrcmpW
GetFileSize
CreateFileA
SetFilePointer
ReadFile
Sleep
GetTickCount
WideCharToMultiByte
FindResourceW
LoadResource
LockResource
SizeofResource
InitializeCriticalSectionAndSpinCount
OutputDebugStringA
InitializeCriticalSection
CreateThread
CreateIoCompletionPort
GetSystemInfo
TerminateThread
WaitForSingleObject
CloseHandle
DeleteCriticalSection
GetQueuedCompletionStatus
GlobalFree
EnterCriticalSection
LeaveCriticalSection
GlobalAlloc
WriteConsoleW

user32

DefMDIChildProcA
DefFrameProcA
PostThreadMessageA
IsMenu
MonitorFromPoint
UpdateLayeredWindow
UnionRect
MapVirtualKeyExA
IsCharLowerA
LoadImageW
EmptyClipboard
CloseClipboard
SetClipboardData
OpenClipboard
RegisterClipboardFormatA
UnpackDDElParam
ReuseDDElParam
LoadMenuA
LoadAcceleratorsA
InsertMenuItemA
TranslateAcceleratorA
LockWindowUpdate
BringWindowToTop
SetCursorPos
CreateAcceleratorTableA
LoadAcceleratorsW
GetKeyboardState
GetKeyboardLayout
ToAsciiEx
DrawFrameControl
DrawEdge
DrawStateA
LoadMenuW
SetClassLongA
DestroyAcceleratorTable
SetParent
SetWindowRgn
IsZoomed
DrawIconEx
LoadImageA
CopyImage
GetIconInfo
NotifyWinEvent
EnableScrollBar
HideCaret
DrawFocusRect
InvertRect
GetAsyncKeyState
CreatePopupMenu
GetMenuDefaultItem
RedrawWindow
UnregisterClassA
MessageBeep
GetNextDlgGroupItem
InvalidateRgn
SetRect
IsRectEmpty
CopyAcceleratorTableA
OffsetRect
CharNextA
CharUpperA
DestroyIcon
WaitMessage
ReleaseCapture
WindowFromPoint
SetCapture
SetLayeredWindowAttributes
EnumDisplayMonitors
SetRectEmpty
KillTimer
SetTimer
DeleteMenu
LoadCursorA
GetSysColorBrush
RealChildWindowFromPoint
DestroyMenu
GetMenuItemInfoA
SetWindowContextHelpId
MapDialogRect
GetDesktopWindow
CreateDialogIndirectParamA
GetNextDlgTabItem
EndDialog
ShowOwnedPopups
SetCursor
GetMessageA
DrawMenuBar
GetActiveWindow
GetCursorPos
ValidateRect
PostQuitMessage
IntersectRect
GetWindowThreadProcessId
IsWindowEnabled
ShowWindow
MoveWindow
SetWindowTextA
IsDialogMessageA
SetDlgItemTextA
CheckDlgButton
SetMenuItemBitmaps
GetMenuCheckMarkDimensions
LoadBitmapW
ModifyMenuA
EnableMenuItem
CheckMenuItem
MapVirtualKeyA
GetKeyNameTextA
EndPaint
BeginPaint
GetWindowDC
ClientToScreen
GrayStringA
DrawTextExA
TabbedTextOutA
GetMenuState
GetMenuStringA
InsertMenuA
RemoveMenu
RegisterWindowMessageA
LoadIconA
SendDlgItemMessageA
WinHelpA
IsChild
GetCapture
SetWindowsHookExA
CallNextHookEx
GetClassLongA
GetClassNameA
SetPropA
GetPropA
RemovePropA
GetFocus
IsWindow
SetFocus
GetWindowTextLengthA
GetWindowTextA
GetForegroundWindow
GetLastActivePopup
SetActiveWindow
DispatchMessageA
BeginDeferWindowPos
EndDeferWindowPos
GetDlgItem
GetTopWindow
DestroyWindow
UnhookWindowsHookEx
GetMessageTime
GetMessagePos
PeekMessageA
MonitorFromWindow
GetMonitorInfoA
MapWindowPoints
ScrollWindow
TrackPopupMenu
GetKeyState
SetMenu
SetScrollRange
TranslateMDISysAccel
GetWindowRgn
DestroyCursor
SubtractRect
GetDoubleClickTime
CharUpperBuffA
CopyIcon
GetUpdateRect
GetScrollRange
SetScrollPos
GetScrollPos
SetForegroundWindow
ShowScrollBar
IsWindowVisible
UpdateWindow
PostMessageA
GetSubMenu
GetMenuItemID
FrameRect
IsClipboardFormatAvailable
SetMenuDefaultItem
CreateMenu
TranslateMessage
GetMenuItemCount
MessageBoxA
CreateWindowExA
GetClassInfoExA
GetClassInfoA
RegisterClassA
AdjustWindowRectEx
GetParent
ScreenToClient
EqualRect
DeferWindowPos
GetScrollInfo
SetScrollInfo
PtInRect
SetWindowPlacement
GetWindowPlacement
GetDlgCtrlID
DefWindowProcA
CallWindowProcA
GetMenu
GetWindowLongA
SetWindowLongA
SetWindowPos
GetWindow
wsprintfA
GetSystemMetrics
LoadIconW
GetClientRect
IsIconic
GetSystemMenu
AppendMenuA
DrawIcon
wvsprintfA
GetSysColor
SystemParametersInfoA
EnableWindow
InvalidateRect
ReleaseDC
GetDC
GetWindowRect
SendMessageA
DrawTextA
FillRect
InflateRect
CopyRect
LoadCursorW

gdi32

PatBlt
SetRectRgn
CombineRgn
GetMapMode
DPtoLP
GetTextExtentPoint32A
CreateDIBitmap
CreateCompatibleBitmap
GetTextMetricsA
EnumFontFamiliesA
GetTextCharsetInfo
GetBkColor
GetTextColor
GetRgnBox
CreatePalette
GetPaletteEntries
GetNearestPaletteIndex
RealizePalette
GetSystemPaletteEntries
CreateDIBSection
CreateRoundRectRgn
CreatePolygonRgn
CreateEllipticRgn
Polyline
Ellipse
Polygon
SetDIBColorTable
StretchBlt
SetPixel
CreateHatchBrush
OffsetRgn
EnumFontFamiliesExA
LPtoDP
GetWindowOrgEx
GetViewportOrgEx
PtInRegion
FillRgn
FrameRgn
GetBoundsRect
ExtFloodFill
SetPaletteEntries
SetPixelV
GetTextFaceA
SetViewportOrgEx
SelectObject
Escape
CreateSolidBrush
ExtTextOutA
CreatePen
GetObjectType
OffsetViewportOrgEx
SelectPalette
GetStockObject
CreateCompatibleDC
CreateBitmap
CreatePatternBrush
DeleteDC
ExtSelectClipRgn
ScaleWindowExtEx
SetWindowExtEx
OffsetWindowOrgEx
SetWindowOrgEx
ScaleViewportExtEx
Rectangle
CreateFontIndirectA
TextOutA
RectVisible
PtVisible
GetPixel
BitBlt
GetWindowExtEx
GetViewportExtEx
CreateRectRgn
SelectClipRgn
DeleteObject
SetLayout
GetLayout
SetTextAlign
MoveToEx
LineTo
IntersectClipRect
ExcludeClipRect
GetClipBox
SetMapMode
SetROP2
SetPolyFillMode
SetBkMode
RestoreDC
SaveDC
CreateDCA
CopyMetaFileA
GetDeviceCaps
GetObjectA
SetBkColor
SetTextColor
CreateRectRgnIndirect
SetViewportExtEx

msimg32

AlphaBlend
TransparentBlt

comdlg32

GetFileTitleA

winspool.drv

ClosePrinter
OpenPrinterA
DocumentPropertiesA

advapi32

RegEnumKeyExA
RegQueryValueExA
RegOpenKeyExA
RegCreateKeyExA
RegSetValueExA
RegDeleteValueA
RegDeleteKeyA
RegEnumKeyA
RegCloseKey
RegEnumValueA
RegQueryValueA

shell32

SHGetFileInfoA
SHGetDesktopFolder
SHGetPathFromIDListA
SHGetSpecialFolderLocation
SHAppBarMessage
SHBrowseForFolderA
DragQueryFileA
DragFinish
ShellExecuteA

comctl32

ImageList_GetIconSize

shlwapi

PathFindFileNameA
PathRemoveFileSpecW
PathStripToRootA
PathFindExtensionA
PathIsUNCA

ole32

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

oleaut32

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

oledlg

ord8

ws2_32

WSASend
WSARecv
getpeername
WSAIoctl
setsockopt
WSAAccept
WSACleanup
listen
bind
htons
htonl
WSASocketA
inet_ntoa
gethostbyname
gethostname
WSAGetLastError
WSAStartup
closesocket

oleacc

LresultFromObject
AccessibleObjectFromWindow
CreateStdAccessibleObject

gdiplus

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

imm32

ImmGetOpenStatus
ImmReleaseContext
ImmGetContext

winmm

PlaySoundA

Sections

.text
Size: 1.2MB - Virtual size: 1.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 271KB - Virtual size: 271KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 24KB - Virtual size: 53KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 28KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 165KB - Virtual size: 164KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

4f9bca85bdf5304a886532f0abf0d699

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

msimg32

comdlg32

winspool.drv

advapi32

shell32

comctl32

shlwapi

ole32

oleaut32

oledlg

ws2_32

oleacc

gdiplus

imm32

winmm

Sections

.text Size: 1.2MB - Virtual size: 1.2MB

.rdata Size: 271KB - Virtual size: 271KB

.data Size: 24KB - Virtual size: 53KB

.rsrc Size: 28KB - Virtual size: 28KB

.reloc Size: 165KB - Virtual size: 164KB

.text
Size: 1.2MB - Virtual size: 1.2MB

.rdata
Size: 271KB - Virtual size: 271KB

.data
Size: 24KB - Virtual size: 53KB

.rsrc
Size: 28KB - Virtual size: 28KB

.reloc
Size: 165KB - Virtual size: 164KB