Byefron[.]exe | Triage

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General

Target

Byefron.exe
Size

16.1MB
MD5

50fc581586fb0df648cd8ed9e7fd73b9
SHA1

3cf5d42133986372ea5f498659e0874343b27bdb
SHA256

7db9493305818984a87f4123864b96895be15deb5aaed70e0a718f42d6fe2e8e
SHA512

458a52946c20bbc93c73167272c38fef3926251d9a3619c354a84359ac3b7dce2dfb0cbf8495ea04adfa8f8d91d7f11b700b375cc6258c36476311e8d1eec059
SSDEEP

393216:53Z8A06vEQ3ITvzx46SxiILGREuV3WjH83:53ZIzx46YNL6WTE

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Byefron.exe

Files

Byefron.exe
.exe windows:4 windows x64 arch:x64

2be4009946d73b64e662d60f18501ab0

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

GetStdHandle
GetConsoleMode
TlsGetValue
GetLastError
SetLastError
RaiseException
GetTickCount
ExitProcess
GetStartupInfoA
GetCommandLineA
GetCurrentProcessId
GetCurrentThreadId
GetCurrentProcess
ReadProcessMemory
GetModuleFileNameA
GetModuleHandleA
WriteFile
ReadFile
CloseHandle
SetFilePointer
GetFileSize
SetEndOfFile
GetSystemInfo
LoadLibraryW
LoadLibraryA
GetProcAddress
FreeLibrary
FormatMessageW
DeleteFileW
MoveFileW
CreateFileW
GetFileAttributesW
CreateDirectoryW
RemoveDirectoryW
SetCurrentDirectoryW
GetCurrentDirectoryW
GetFullPathNameW
SetEnvironmentVariableW
GetConsoleOutputCP
GetOEMCP
GetProcessHeap
HeapAlloc
HeapFree
TlsAlloc
TlsSetValue
CreateThread
ExitThread
LocalAlloc
LocalFree
Sleep
SuspendThread
ResumeThread
TerminateThread
WaitForSingleObject
SetThreadPriority
GetThreadPriority
GetCurrentThread
OpenThread
IsDebuggerPresent
CreateEventA
ResetEvent
SetEvent
InitializeCriticalSection
DeleteCriticalSection
EnterCriticalSection
LeaveCriticalSection
TryEnterCriticalSection
GetEnvironmentStringsW
FreeEnvironmentStringsW
MultiByteToWideChar
WideCharToMultiByte
GetACP
GetConsoleCP
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
RtlUnwindEx
GetShortPathNameA
GetEnvironmentStringsA
FreeEnvironmentStringsA
FormatMessageA
CreateSemaphoreA
CreateFileMappingA
OpenFileMappingA
GetLogicalDriveStringsA
LoadLibraryExA
OutputDebugStringA
FindResourceA
FindResourceExA
EnumResourceTypesA
EnumResourceNamesA
EnumResourceLanguagesA
BeginUpdateResourceA
UpdateResourceA
EndUpdateResourceA
GlobalAddAtomA
GetTempPathA
GetWindowsDirectoryA
GetDiskFreeSpaceA
CreateFileA
CreateNamedPipeA
GetComputerNameA
CreateProcessA
GetVersionExA
CompareStringA
GetLocaleInfoA
GetDateFormatA
EnumCalendarInfoA
GetModuleFileNameW
GetCommandLineW
CreateProcessW
FindFirstFileW
FindNextFileW
CompareStringW
GetLocaleInfoW
GetDateFormatW
FindFirstFileExW
FreeResource
LockResource
GlobalAlloc
GlobalReAlloc
GlobalSize
GlobalLock
GlobalUnlock
GlobalMemoryStatus
FlushInstructionCache
VirtualAlloc
VirtualAllocEx
VirtualFree
VirtualFreeEx
VirtualQuery
VirtualProtectEx
VirtualQueryEx
GetProcessAffinityMask
GetProcessWorkingSetSize
SetProcessWorkingSetSize
OpenProcess
TerminateProcess
SetProcessAffinityMask
GetExitCodeProcess
CreateRemoteThread
SetThreadAffinityMask
GetExitCodeThread
SetErrorMode
WriteProcessMemory
ReleaseSemaphore
WaitForMultipleObjects
LoadResource
SizeofResource
GlobalDeleteAtom
FlushFileBuffers
DeviceIoControl
FindClose
GetFileTime
SetFileTime
DuplicateHandle
MulDiv
GetLocalTime
FileTimeToLocalFileTime
LocalFileTimeToFileTime
FileTimeToSystemTime
FileTimeToDosDateTime
DosDateTimeToFileTime
CreatePipe
ConnectNamedPipe
DisconnectNamedPipe
PeekNamedPipe
MapViewOfFile
UnmapViewOfFile
SleepEx
WriteFileEx
QueryPerformanceCounter
QueryPerformanceFrequency
CancelIo
GetCPInfo
GetThreadLocale
SetThreadLocale
GetUserDefaultLCID
GetOverlappedResult
GetFileSizeEx
QueueUserAPC

oleaut32

SysAllocStringLen
SysFreeString
SysReAllocStringLen
SafeArrayCreate
SafeArrayRedim
SafeArrayGetUBound
SafeArrayGetLBound
SafeArrayAccessData
SafeArrayUnaccessData
SafeArrayGetElement
SafeArrayPutElement
SafeArrayPtrOfIndex
VariantChangeTypeEx
VariantClear
VariantCopy
VariantInit

user32

MessageBoxA
CharUpperBuffW
CharLowerBuffW
RegisterWindowMessageA
PeekMessageA
SendMessageA
SendMessageTimeoutA
PostMessageA
PostThreadMessageA
DefWindowProcA
CallWindowProcA
RegisterClassA
UnregisterClassA
GetClassInfoA
RegisterClassExA
CreateWindowExA
SendDlgItemMessageA
RegisterClipboardFormatA
GetClipboardFormatNameA
CharToOemA
CharUpperA
CharUpperBuffA
CharLowerA
CharLowerBuffA
GetMenuItemInfoA
SetPropA
GetPropA
RemovePropA
EnumPropsA
GetWindowTextA
GetWindowTextLengthA
GetWindowLongA
SetWindowLongA
GetClassLongA
SetWindowLongPtrA
GetClassLongPtrA
SetClassLongPtrA
FindWindowA
GetClassNameA
LoadBitmapA
LoadCursorA
LoadIconA
LoadImageA
SystemParametersInfoA
DispatchMessageW
PeekMessageW
SendMessageW
PostMessageW
DefWindowProcW
CallWindowProcW
RegisterClassW
UnregisterClassW
GetClassInfoW
CreateWindowExW
InsertMenuItemW
GetMenuItemInfoW
SetMenuItemInfoW
DrawTextW
DrawStateW
SetWindowTextW
GetWindowTextW
GetWindowTextLengthW
MessageBoxW
GetWindowLongPtrW
SetWindowLongPtrW
GetClassNameW
DefFrameProcW
DefMDIChildProcW
GetKeyboardLayout
TranslateMessage
UnregisterHotKey
AttachThreadInput
PostQuitMessage
GetDoubleClickTime
IsWindow
IsMenu
DestroyWindow
ShowWindow
ShowWindowAsync
ShowOwnedPopups
CloseWindow
MoveWindow
SetWindowPos
GetWindowPlacement
SetWindowPlacement
BeginDeferWindowPos
DeferWindowPos
EndDeferWindowPos
IsWindowVisible
IsIconic
BringWindowToTop
IsZoomed
GetDlgItem
OpenClipboard
CloseClipboard
SetClipboardData
GetClipboardData
CountClipboardFormats
EnumClipboardFormats
EmptyClipboard
IsClipboardFormatAvailable
SetFocus
GetActiveWindow
GetFocus
GetKeyState
GetAsyncKeyState
GetKeyboardState
ToAscii
keybd_event
mouse_event
GetCapture
SetCapture
ReleaseCapture
MsgWaitForMultipleObjects
SetTimer
KillTimer
EnableWindow
IsWindowEnabled
GetSystemMetrics
GetMenu
SetMenu
DrawMenuBar
GetSystemMenu
CreateMenu
CreatePopupMenu
DestroyMenu
EnableMenuItem
GetSubMenu
GetMenuItemCount
RemoveMenu
DeleteMenu
GetMenuItemRect
UpdateWindow
SetActiveWindow
GetForegroundWindow
SetForegroundWindow
WindowFromDC
GetDC
GetDCEx
GetWindowDC
ReleaseDC
BeginPaint
EndPaint
GetUpdateRect
SetWindowRgn
InvalidateRect
InvalidateRgn
RedrawWindow
LockWindowUpdate
ScrollWindow
ScrollDC
ScrollWindowEx
ShowScrollBar
EnableScrollBar
GetClientRect
GetWindowRect
AdjustWindowRectEx
MessageBeep
SetCursorPos
SetCursor
GetCursorPos
CreateCaret
GetCaretBlinkTime
DestroyCaret
HideCaret
ShowCaret
SetCaretPos
GetCaretPos
ClientToScreen
ScreenToClient
MapWindowPoints
WindowFromPoint
GetSysColor
GetSysColorBrush
SetSysColors
DrawFocusRect
FillRect
FrameRect
SetRect
InflateRect
IntersectRect
SubtractRect
OffsetRect
IsRectEmpty
PtInRect
GetDesktopWindow
GetParent
SetParent
EnumChildWindows
EnumThreadWindows
GetTopWindow
GetWindowThreadProcessId
GetLastActivePopup
GetWindow
CallNextHookEx
DestroyCursor
DestroyIcon
CopyImage
CreateIconIndirect
GetIconInfo
SetScrollInfo
GetScrollInfo
TranslateMDISysAccel
DrawEdge
DrawFrameControl
TrackPopupMenuEx
ChildWindowFromPointEx
DrawIconEx
FlashWindowEx
SetLayeredWindowAttributes
GetComboBoxInfo
SetMenuInfo
AllowSetForegroundWindow

advapi32

LookupAccountSidA
LookupPrivilegeValueA
RegQueryInfoKeyA
OpenSCManagerA
StartServiceA
RegSetValueExW
RegQueryValueExW
RegCreateKeyExW
RegDeleteKeyW
RegDeleteValueW
RegEnumKeyExW
RegEnumValueW
RegOpenKeyExW
ChangeServiceConfigW
CreateServiceW
OpenServiceW
OpenProcessToken
OpenThreadToken
GetTokenInformation
AdjustTokenPrivileges
EqualSid
AllocateAndInitializeSid
FreeSid
SetKernelObjectSecurity
RegCloseKey
RegFlushKey
CloseServiceHandle
ConvertStringSecurityDescriptorToSecurityDescriptorA

gdi32

CreateFontIndirectA
EnumFontFamiliesA
GetCharABCWidthsA
GetTextExtentPointA
GetTextMetricsA
GetObjectA
ExtTextOutA
CreateFontIndirectW
EnumFontFamiliesExW
GetCharABCWidthsW
GetTextExtentPointW
GetTextExtentPoint32W
GetTextExtentExPointW
GetObjectW
TextOutW
ExtTextOutW
GetRandomRgn
Arc
BitBlt
Chord
CombineRgn
CreateBitmap
CreateBrushIndirect
CreateCompatibleBitmap
CreateCompatibleDC
CreateDIBitmap
CreateEllipticRgn
CreatePen
CreatePenIndirect
CreatePatternBrush
CreateRectRgn
CreateRoundRectRgn
CreateSolidBrush
DeleteDC
DeleteObject
Ellipse
EqualRgn
ExcludeClipRect
ExtCreateRegion
ExtFloodFill
FillRgn
GetROP2
GetBkColor
GetBitmapBits
GetClipBox
GetClipRgn
GetCurrentObject
GetDeviceCaps
GetDIBits
GetMapMode
GetObjectType
GetPixel
GetRegionData
GetRgnBox
GetStockObject
GetTextAlign
GetTextColor
GetViewportExtEx
GetViewportOrgEx
GetWindowExtEx
GetWindowOrgEx
IntersectClipRect
LineTo
MaskBlt
OffsetRgn
PatBlt
Pie
PaintRgn
PtInRegion
RectInRegion
RectVisible
Rectangle
RestoreDC
RealizePalette
RoundRect
SaveDC
SelectClipRgn
ExtSelectClipRgn
SelectObject
SelectPalette
SetBkColor
SetBkMode
SetMapMode
SetPixel
SetPolyFillMode
StretchBlt
SetRectRgn
SetROP2
SetStretchBltMode
SetTextCharacterExtra
SetTextColor
SetTextAlign
CreateDIBSection
SetArcDirection
ExtCreatePen
MoveToEx
CreatePolygonRgn
DPtoLP
LPtoDP
Polygon
Polyline
PolyBezier
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
SetBrushOrgEx
GetDCOrgEx
GdiFlush
ChoosePixelFormat
SetPixelFormat
SwapBuffers
AddFontMemResourceEx
RemoveFontMemResourceEx

version

GetFileVersionInfoSizeA
GetFileVersionInfoA
VerQueryValueA

shell32

DragQueryFileA
ExtractIconA
ShellExecuteA
Shell_NotifyIconA
DragQueryFileW
ShellExecuteW
Shell_NotifyIconW
DragFinish
DragAcceptFiles
SHGetSpecialFolderLocation
SHGetMalloc
SHGetPathFromIDListA
SHGetPathFromIDListW
SHBrowseForFolderW
SHGetFileInfoW

opengl32

wglUseFontBitmapsA
wglCreateContext
wglMakeCurrent
wglGetProcAddress

ole32

CoCreateGuid
CoTaskMemFree
OleInitialize
OleUninitialize
RegisterDragDrop
RevokeDragDrop
DoDragDrop
OleSetClipboard
OleGetClipboard
ReleaseStgMedium
CreateStreamOnHGlobal
CoUninitialize
CoFreeUnusedLibraries
CoCreateInstance
CLSIDFromProgID
CoInitialize
CoTaskMemAlloc
CreateDataAdviseHolder
GetErrorInfo

comctl32

InitCommonControls
ImageList_Create
ImageList_Destroy
ImageList_GetImageCount
ImageList_SetImageCount
ImageList_Add
ImageList_Replace
ImageList_AddMasked
ImageList_DrawEx
ImageList_DrawIndirect
ImageList_Remove
ImageList_Copy
ImageList_BeginDrag
ImageList_EndDrag
ImageList_DragEnter
ImageList_DragLeave
ImageList_DragMove
ImageList_DragShowNolock
_TrackMouseEvent

imm32

ImmGetContext
ImmReleaseContext
ImmGetCompositionStringW
ImmNotifyIME

comdlg32

ChooseColorA
CommDlgExtendedError
GetOpenFileNameW
GetSaveFileNameW
ChooseFontW

ntdll

ZwCreateSection
ZwMapViewOfSection
NtResumeProcess
NtSuspendProcess
ZwUnmapViewOfSection
RtlCompareMemory

ws2_32

__WSAFDIsSet
accept
bind
closesocket
connect
ioctlsocket
getpeername
htons
listen
ntohs
recv
recvfrom
select
send
sendto
setsockopt
socket
WSAStartup
WSACleanup
WSAGetLastError

wsock32

closesocket
ioctlsocket
select
gethostbyaddr
gethostbyname
WSAStartup

uxtheme

OpenThemeData
CloseThemeData
GetThemeColor
SetWindowTheme

psapi

GetMappedFileNameA
GetDeviceDriverFileNameA

hhctrl.ocx

HtmlHelpA

winmm

timeGetTime

lua53-64

lua_close
lua_newthread
lua_atpanic
lua_rotate
lua_rawlen
lua_absindex
lua_gettop
lua_settop
lua_pushvalue
lua_checkstack
lua_isnumber
lua_isinteger
lua_isstring
lua_iscfunction
lua_isuserdata
lua_type
lua_tonumberx
lua_tointegerx
lua_toboolean
lua_tolstring
lua_tocfunction
lua_touserdata
lua_topointer
lua_pushnil
lua_pushnumber
lua_pushinteger
lua_pushlstring
lua_pushstring
lua_pushcclosure
lua_pushboolean
lua_pushlightuserdata
lua_gettable
lua_rawgeti
lua_createtable
lua_newuserdata
lua_getmetatable
lua_settable
lua_rawseti
lua_setmetatable
lua_callk
lua_pcallk
lua_load
lua_dump
lua_gc
lua_error
lua_next
lua_setglobal
lua_getglobal
lua_getinfo
lua_getlocal
lua_sethook
luaL_openlibs
luaL_argerror
luaL_ref
luaL_unref
luaL_loadfilex
luaL_loadstring
luaL_newstate

wininet

InternetOpenA
InternetCloseHandle
InternetConnectA
InternetOpenUrlA
InternetReadFile
InternetQueryDataAvailable
HttpOpenRequestA
HttpSendRequestA

Sections

.text
Size: 7.9MB - Virtual size: 7.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 1.0MB - Virtual size: 1.0MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 432KB - Virtual size: 432KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 1.1MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 24B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 25KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 586KB - Virtual size: 586KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

/4
Size: 512B - Virtual size: 28B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

2be4009946d73b64e662d60f18501ab0

Headers

File Characteristics

Imports

kernel32

oleaut32

user32

advapi32

gdi32

version

shell32

opengl32

ole32

comctl32

imm32

comdlg32

ntdll

ws2_32

wsock32

uxtheme

psapi

hhctrl.ocx

winmm

lua53-64

wininet

Sections

.text Size: 7.9MB - Virtual size: 7.9MB

.data Size: 1.0MB - Virtual size: 1.0MB

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

.pdata Size: 432KB - Virtual size: 432KB

.bss Size: - Virtual size: 1.1MB

.CRT Size: 512B - Virtual size: 24B

.idata Size: 25KB - Virtual size: 24KB

.rsrc Size: 586KB - Virtual size: 586KB

/4 Size: 512B - Virtual size: 28B

.text
Size: 7.9MB - Virtual size: 7.9MB

.data
Size: 1.0MB - Virtual size: 1.0MB

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

.pdata
Size: 432KB - Virtual size: 432KB

.bss
Size: - Virtual size: 1.1MB

.CRT
Size: 512B - Virtual size: 24B

.idata
Size: 25KB - Virtual size: 24KB

.rsrc
Size: 586KB - Virtual size: 586KB

/4
Size: 512B - Virtual size: 28B