A quick post today for some more emotet malspam that I was able to find. Nothing really special about this one with the exception of it using punycode for the URL. Outside of that, this is pretty much the standard old emotet infection that most have seen. I did notice…
Earlier this morning I came across some emails that had a subject line that caught my attention. They were all from the same sender and all of them had the same maldoc attached to them. From what I can tell this looks to be related to the REMCOS RAT as…
Here is a quick writeup for another Emotet maldoc that I saw. Unfortunately I did not get a copy of the email but it did have a link in it which lead to the maldoc. There were two things in this sample that I saw that were different: 1) no…
So this post covers the malicious macro script that was found in an older writeup for Emotet which you can find here. While one could develop tools to help deobfuscate the macro script like @David Ledbetter did in his blog post, I wanted to show another way of doing it…
This is a quick writeup on some maldocs that I was able to find in our email filters that used the CVE2017-0199 in them. The emails had the same attachments in them (from a hash perspective) which was a Word document and an Excel spreadsheet. The Word document had a…
This is just a quick writeup for an Emotet malspam that I found in Triton. Nothing to detailed or anything of the sort. I was not able to obtain the initial malicious binary (73077.exe) from the Word document, so after getting all the details, I went back on a clean…
Looking through the email filters yesterday, I saw numerous emails from the sender “secure@hsbcdocuments.com” with the subject of “We need to confirm your details.” The email was a well laid out phish with a malicious Word document attached. This Word document led to a Trickbot banking malware infection via the…
A quick write-up on a generic infostealer that also uses a UAC bypass technique. I could not find much about this malware outside that it was a generic information stealing malware. For some interesting reading on how to bypass UAC within Windows, please see the following links: https://enigma0x3.net/2016/08/15/fileless-uac-bypass-using-eventvwr-exe-and-registry-hijacking/ https://enigma0x3.net/2016/07/22/bypassing-uac-on-windows-10-using-disk-cleanup/ https://isc.sans.edu/forums/diary/Malicious+Office+files+using+fileless+UAC+bypass+to+drop+KEYBASE+malware/22011/…
Quick post for today. I have been seeing a lot of malspam with malicious Javascript attachments zipped inside a 7zip archive for the past couple of days. The emails themselves all seem to revolve around the theme of a receipt or invoice as seen below. From what I can tell,…
So continuing from my update yesterday (see 2017-08-30 Trickbot Maldoc – Part One), it looks as if sometime last night while working on the writeup, and perhaps again this morning, Trickbot got cheeky and updated itself. It looks as if the file “Atpsijj.exe” is a new file with a different…