Nick Carr Profile picture
Dec 22, 2017 6 tweets 5 min read Twitter logo Read on Twitter
Fresh APT loader technique for today's #DailyScriptlet:

cs=Array(#,#,#,#,...): cmd="": For each c in cs: cmd=cmd&Chr(c): Next: cmd=cmd&vbcrlf: Execute(cmd)

This is remotely loaded into memory from source phishing doc that uses renamed wscript & pubprn.vbs to load COM Scriptlet.
@bwithnell and I shared an earlier version of this #APT32 phish technique:
Relevant slide screenshots attached.

They are continually improving each phase of their dynamic, multi-stage infection chain.
@bwithnell SPOILER: the VBScript *still* doesn't properly convert temperatures as promised, but it *will* load good tidings of great Cobalt Strike 🎅🏽
I know @subTee and @enigma0x3 just love the slide that shows timestamps of APTweet32 technique adoption.
@bwithnell @JohnLaTwC Here is a different malicious Temperature Conversion example 🌡️

More info:
@threadreaderapp unroll me a #threatintel blog breh

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More from @ItsReallyNick

Aug 1, 2018
In light of the #FIN7 "Combi Security" DOJ indictment, we've released our massive technical post and indicator release: fireeye.com/blog/threat-re…

We reveal new information from @Mandiant IRs about the extent of FIN7's crimes, their innovative techniques, & how to find them today.
#FIN7 targeted other financial data when they encountered encryption in POS networks. New information today - and certainly helped stack up the charges against Combi Security.

Also @BarryV @stvemillertime first shared SEC filing targeting in March 2017: fireeye.com/blog/threat-re…
Crime doesn't pay. Unless you worked for Combi Security, in which case it paid a pretty decent wage for Russian/Ukrainian "pen testers" 😄

Sidenote: @FireEye's red team is hiring but their operations *are* authorized and the only payment card hijinks is over who expenses dinner.
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