renamer | Virus[.]Win32[.]Grenam[.]B40f03c122141183780da163945b11c303cd6e4a9e0acf0dfd61eb2f3afcd4b5aN

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General

Target

Virus.Win32.Grenam.B40f03c122141183780da163945b11c303cd6e4a9e0acf0dfd61eb2f3afcd4b5aN
Size

824KB
MD5

e6487e659e3689489b30f8baeffa5320
SHA1

3f1699bdc4b7e444dd29e4362f3fcc0b581692cb
SHA256

40f03c122141183780da163945b11c303cd6e4a9e0acf0dfd61eb2f3afcd4b5a
SHA512

0f39b968c7ef7dc57c87c23b0a429f9e028094abd3aeacb9a595d915e172de673d18eb1a5d29ce90e0952779916241fcd9b87d8d625f3d932721e827d1a60d1f
SSDEEP

12288:UwCBtLC+EptUpQ9SeSChq3YvxFBSSRMT8PTp4ihozEz888888888888W8888888J:kNzCtUpQ9WWPBSSRMTEpXNH

Score

10^/10

renamer

Malware Config

Signatures

Detects Renamer worm. 1 IoCs

Renamer aka Grename is worm written in Delphi.

resource	yara_rule
sample	family_renamer

Renamer family
renamer

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Virus.Win32.Grenam.B40f03c122141183780da163945b11c303cd6e4a9e0acf0dfd61eb2f3afcd4b5aN

Files

Virus.Win32.Grenam.B40f03c122141183780da163945b11c303cd6e4a9e0acf0dfd61eb2f3afcd4b5aN
.exe windows:5 windows x86 arch:x86

c00b6ba7dbbc6abee9ace3a65a49ba24

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Imports

oleaut32

SysFreeString
SysReAllocStringLen
SysAllocStringLen
GetErrorInfo
SysFreeString
SafeArrayPtrOfIndex
SafeArrayGetUBound
SafeArrayGetLBound
SafeArrayCreate
VariantChangeType
VariantCopy
VariantClear
VariantInit

advapi32

RegQueryValueExW
RegOpenKeyExW
RegCloseKey
RegUnLoadKeyW
RegSetValueExW
RegSaveKeyW
RegRestoreKeyW
RegReplaceKeyW
RegQueryValueExW
RegQueryInfoKeyW
RegOpenKeyExW
RegLoadKeyW
RegFlushKey
RegEnumValueW
RegEnumKeyExW
RegDeleteValueW
RegDeleteKeyW
RegCreateKeyExW
RegConnectRegistryW
RegCloseKey

user32

LoadStringW
MessageBoxA
CharNextW
CreateWindowExW
WindowFromPoint
WaitMessage
UpdateWindow
UnregisterClassW
UnhookWindowsHookEx
TranslateMessage
TranslateMDISysAccel
TrackPopupMenu
SystemParametersInfoW
ShowWindow
ShowScrollBar
ShowOwnedPopups
SetWindowsHookExW
SetWindowTextW
SetWindowPos
SetWindowPlacement
SetWindowLongW
SetTimer
SetScrollRange
SetScrollPos
SetScrollInfo
SetRect
SetPropW
SetParent
SetMenuItemInfoW
SetMenu
SetForegroundWindow
SetFocus
SetCursorPos
SetCursor
SetClassLongW
SetCapture
SetActiveWindow
SendMessageA
SendMessageW
ScrollWindow
ScreenToClient
RemovePropW
RemoveMenu
ReleaseDC
ReleaseCapture
RegisterWindowMessageW
RegisterClipboardFormatW
RegisterClassW
RedrawWindow
PostQuitMessage
PostMessageW
PeekMessageA
PeekMessageW
OffsetRect
MsgWaitForMultipleObjectsEx
MsgWaitForMultipleObjects
MessageBoxW
MapWindowPoints
MapVirtualKeyW
LoadStringW
LoadKeyboardLayoutW
LoadIconW
LoadCursorW
LoadBitmapW
KillTimer
IsZoomed
IsWindowVisible
IsWindowUnicode
IsWindowEnabled
IsWindow
IsIconic
IsDialogMessageA
IsDialogMessageW
IsChild
InvalidateRect
IntersectRect
InsertMenuItemW
InsertMenuW
InflateRect
GetWindowThreadProcessId
GetWindowTextW
GetWindowRect
GetWindowPlacement
GetWindowLongW
GetWindowDC
GetTopWindow
GetSystemMetrics
GetSystemMenu
GetSysColorBrush
GetSysColor
GetSubMenu
GetScrollRange
GetScrollPos
GetScrollInfo
GetPropW
GetParent
GetWindow
GetMessagePos
GetMessageExtraInfo
GetMenuStringW
GetMenuState
GetMenuItemInfoW
GetMenuItemID
GetMenuItemCount
GetMenu
GetLastActivePopup
GetKeyboardState
GetKeyboardLayoutNameW
GetKeyboardLayoutList
GetKeyboardLayout
GetKeyState
GetKeyNameTextW
GetIconInfo
GetForegroundWindow
GetFocus
GetDesktopWindow
GetDCEx
GetDC
GetCursorPos
GetCursor
GetClientRect
GetClassLongW
GetClassInfoW
GetCapture
GetActiveWindow
FrameRect
FindWindowExW
FindWindowW
FillRect
EnumWindows
EnumThreadWindows
EnumChildWindows
EndPaint
EnableWindow
EnableScrollBar
EnableMenuItem
DrawTextExW
DrawTextW
DrawMenuBar
DrawIconEx
DrawIcon
DrawFrameControl
DrawFocusRect
DrawEdge
DispatchMessageA
DispatchMessageW
DestroyWindow
DestroyMenu
DestroyIcon
DestroyCursor
DeleteMenu
DefWindowProcW
DefMDIChildProcW
DefFrameProcW
CreatePopupMenu
CreateMenu
CreateIcon
CreateAcceleratorTableW
CopyIcon
ClientToScreen
CheckMenuItem
CharUpperBuffW
CharNextW
CharLowerW
CallWindowProcW
CallNextHookEx
BeginPaint
AdjustWindowRectEx
ActivateKeyboardLayout

kernel32

lstrcmpiA
LoadLibraryA
LocalFree
LocalAlloc
GetACP
Sleep
VirtualFree
VirtualAlloc
GetSystemInfo
GetTickCount
QueryPerformanceCounter
GetVersion
GetCurrentThreadId
VirtualQuery
WideCharToMultiByte
MultiByteToWideChar
lstrlenW
lstrcpynW
LoadLibraryExW
IsValidLocale
GetSystemDefaultUILanguage
GetStartupInfoA
GetProcAddress
GetModuleHandleW
GetModuleFileNameW
GetUserDefaultUILanguage
GetLocaleInfoW
GetLastError
GetCommandLineW
FreeLibrary
FindFirstFileW
FindClose
ExitProcess
ExitThread
CreateThread
CompareStringW
WriteFile
UnhandledExceptionFilter
SetFilePointer
SetEndOfFile
RtlUnwind
ReadFile
RaiseException
GetStdHandle
GetFileSize
GetFileType
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
InitializeCriticalSection
CreateFileW
CloseHandle
TlsSetValue
TlsGetValue
LocalAlloc
GetModuleHandleW
lstrcpyW
WriteFile
WideCharToMultiByte
WaitForSingleObject
WaitForMultipleObjectsEx
VirtualQueryEx
VirtualQuery
VirtualFree
VirtualAlloc
UpdateResourceW
TryEnterCriticalSection
SwitchToThread
SuspendThread
SizeofResource
SignalObjectAndWait
SetThreadPriority
SetThreadLocale
SetLastError
SetFilePointer
SetFileAttributesW
SetEvent
SetErrorMode
SetEndOfFile
ResumeThread
ResetEvent
ReadFile
RaiseException
IsDebuggerPresent
OpenMutexW
MultiByteToWideChar
MulDiv
MoveFileW
LockResource
LoadResource
LoadLibraryW
LeaveCriticalSection
InitializeCriticalSection
GlobalUnlock
GlobalLock
GlobalFree
GlobalFindAtomW
GlobalDeleteAtom
GlobalAlloc
GlobalAddAtomW
GetVersionExW
GetVersion
GetTickCount
GetThreadPriority
GetThreadLocale
GetStdHandle
GetProcAddress
GetModuleHandleW
GetModuleFileNameW
GetLogicalDriveStringsW
GetLocaleInfoW
GetLocalTime
GetLastError
GetFullPathNameW
GetFileAttributesW
GetExitCodeThread
GetDriveTypeW
GetDiskFreeSpaceW
GetDateFormatW
GetCurrentThreadId
GetCurrentThread
GetCurrentProcessId
GetCurrentProcess
GetCPInfo
FreeResource
InterlockedExchangeAdd
InterlockedExchange
InterlockedCompareExchange
FreeLibrary
FormatMessageW
FindResourceW
FindNextFileW
FindFirstFileW
FindClose
FileTimeToLocalFileTime
FileTimeToDosDateTime
EnumCalendarInfoW
EnterCriticalSection
EndUpdateResourceW
DeleteFileW
DeleteCriticalSection
CreateThread
CreateMutexW
CreateFileW
CreateEventW
CompareStringW
CloseHandle
BeginUpdateResourceW
Sleep

msimg32

AlphaBlend

gdi32

UnrealizeObject
StretchDIBits
StretchBlt
StartPage
StartDocW
SetWindowOrgEx
SetViewportOrgEx
SetTextColor
SetStretchBltMode
SetROP2
SetPixel
SetDIBits
SetDIBColorTable
SetBrushOrgEx
SetBkMode
SetBkColor
SetAbortProc
SelectPalette
SelectObject
SaveDC
RoundRect
RestoreDC
Rectangle
RectVisible
RealizePalette
Polyline
Polygon
PolyBezierTo
PolyBezier
Pie
PatBlt
MoveToEx
MaskBlt
LineTo
IntersectClipRect
GetWindowOrgEx
GetTextMetricsW
GetTextExtentPoint32W
GetSystemPaletteEntries
GetStockObject
GetRgnBox
GetPixel
GetPaletteEntries
GetObjectW
GetDeviceCaps
GetDIBits
GetDIBColorTable
GetDCOrgEx
GetCurrentPositionEx
GetClipBox
GetBrushOrgEx
GetBitmapBits
FrameRgn
ExtTextOutW
ExtFloodFill
ExcludeClipRect
EnumFontsW
EnumFontFamiliesExW
EndPage
EndDoc
Ellipse
DeleteObject
DeleteDC
CreateSolidBrush
CreateRectRgn
CreatePenIndirect
CreatePalette
CreateICW
CreateHalftonePalette
CreateFontIndirectW
CreateDIBitmap
CreateDIBSection
CreateDCW
CreateCompatibleDC
CreateCompatibleBitmap
CreateBrushIndirect
CreateBitmap
Chord
BitBlt
Arc
AbortDoc

version

VerQueryValueW
GetFileVersionInfoSizeW
GetFileVersionInfoW

ole32

OleUninitialize
OleInitialize
CoTaskMemFree
StringFromCLSID
CoCreateInstance
CoUninitialize
CoInitialize

comctl32

InitializeFlatSB
FlatSB_SetScrollProp
FlatSB_SetScrollPos
FlatSB_SetScrollInfo
FlatSB_GetScrollPos
FlatSB_GetScrollInfo
_TrackMouseEvent
ImageList_GetImageInfo
ImageList_SetIconSize
ImageList_GetIconSize
ImageList_Write
ImageList_Read
ImageList_GetDragImage
ImageList_DragShowNolock
ImageList_DragMove
ImageList_DragLeave
ImageList_DragEnter
ImageList_EndDrag
ImageList_BeginDrag
ImageList_Copy
ImageList_LoadImageW
ImageList_GetIcon
ImageList_Remove
ImageList_DrawEx
ImageList_Replace
ImageList_Draw
ImageList_SetOverlayImage
ImageList_GetBkColor
ImageList_SetBkColor
ImageList_ReplaceIcon
ImageList_Add
ImageList_SetImageCount
ImageList_GetImageCount
ImageList_Destroy
ImageList_Create

shell32

ShellExecuteW
ExtractIconW
SHGetSpecialFolderLocation
SHGetPathFromIDListW

winspool.drv

OpenPrinterW
EnumPrintersW
DocumentPropertiesW
ClosePrinter
GetDefaultPrinterW

Sections

.text
Size: 679KB - Virtual size: 678KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.itext
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.bss
Size: - Virtual size: 20KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 13KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.didata
Size: 1024B - Virtual size: 670B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: - Virtual size: 60B

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 60KB - Virtual size: 60KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 57KB - Virtual size: 56KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

c00b6ba7dbbc6abee9ace3a65a49ba24

Headers

File Characteristics

Imports

oleaut32

advapi32

user32

kernel32

msimg32

gdi32

version

ole32

comctl32

shell32

winspool.drv

Sections

.text Size: 679KB - Virtual size: 678KB

.itext Size: 3KB - Virtual size: 3KB

.data Size: 9KB - Virtual size: 8KB

.bss Size: - Virtual size: 20KB

.idata Size: 13KB - Virtual size: 12KB

.didata Size: 1024B - Virtual size: 670B

.tls Size: - Virtual size: 60B

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

.reloc Size: 60KB - Virtual size: 60KB

.rsrc Size: 57KB - Virtual size: 56KB

.text
Size: 679KB - Virtual size: 678KB

.itext
Size: 3KB - Virtual size: 3KB

.data
Size: 9KB - Virtual size: 8KB

.bss
Size: - Virtual size: 20KB

.idata
Size: 13KB - Virtual size: 12KB

.didata
Size: 1024B - Virtual size: 670B

.tls
Size: - Virtual size: 60B

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

.reloc
Size: 60KB - Virtual size: 60KB

.rsrc
Size: 57KB - Virtual size: 56KB