OverviewAn email is being sent out warning the recipient of a "Copyright Lawsuit filed against you." We received a copy here and a number of .EDUs have reported it's receipt. It looks something similar to:
The law-firms named in the email, header, and sending server all appear to be a mish-mash of existing firms. If a user clicks on the link and opens the document it will attempt to download additional payload. Initial DetectionCurrently only a few AV solutions detect the initial document: http://www.virustotal.com/analisis/9b762ff9d2103022bf1476f2c55db91475f31526522716e827875801f92a0d87-1269486837 Behavioral NotesFollowing Daniel's process (http://isc.sans.org/diary.html?storyid=6703) one could extract the executable and determine what it's up to. It appears to reach out to 121.14.149.132:80 to make a request similar to: GET /fwq/indux.php?U=1234@1014@1@0@0@c791d4a4a147b2cd1843fe4f7f27f3a1df63f95daf0c3ddcd5f1b1e4538fd803 |
Kevin Liston 292 Posts ISC Handler Mar 25th 2010 |
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Mar 25th 2010 1 decade ago |
We saw this a couple of weeks ago. It was targeted directly at one of our upper management.
We quarantine all office documents (among other things) in our spam filter and they must be manually approved by an IT staff member. A bit labor intensive yes, but it ensures that crap like this never hits the end user's Inbox. I suspect it has saved our bacon more than once. This particular email was caught purely on the attachment filter and was not flagged as a virus by our spam filter. |
Joel B 8 Posts |
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Mar 25th 2010 1 decade ago |
Gotta love the spelling of Pretrial (Pretrail). Dead give away that no lawyer wrote this email.
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HackDefendr 65 Posts |
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Mar 25th 2010 1 decade ago |
@Joel B
That must be why they moved to using a URL instead of the attachment. You get more intel on your victims that way and can sometimes bypass centralized/enterprise controls that way. |
Kevin Liston 292 Posts ISC Handler |
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Mar 25th 2010 1 decade ago |
I received this a week or two ago also. The text of the email was a jpeg.
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Kevin Liston 5 Posts |
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Mar 25th 2010 1 decade ago |
We have received an almost identical mail (different date, courtroom number, client and URL though strangely the same case number :) ) which contains a similar file (executable renamed to .pdf embedded in a .rtf renamed to .doc). I noticed that it has a different md5 so is probably a variation:
http://www.virustotal.com/analisis/0d7e491efa072d6feeecc7a97ba7c341930107ce0804f94b9fcb0347bd9969ef-1269548498 Prod me if you want samples, etc. |
Kevin Liston 1 Posts |
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Mar 26th 2010 1 decade ago |
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