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Threat Group Cards: A Threat Actor Encyclopedia

Permanent link Tool: Clayslide

DescriptionThis is a so-called delivery document.
(Palo Alto) n May 2016, Unit 42 began researching attacks that used spear-phishing emails with attachments, specifically malicious Excel spreadsheets sent to financial organizations within Saudi Arabia. We observed spear-phishing emails sent between May 4 and May 12 of this year that delivered these malicious Excel spreadsheets, which we are tracking as ‘Clayslide’. ClaySlide documents contain malicious macros that display decoy content within the spreadsheet and installs a variant of a Helminth backdoor.

Last change to this tool card: 20 April 2020

Download this tool card in JSON format

All groups using tool Clayslide


APT groups

 OilRig, APT 34, Helix Kitten, ChryseneIran2014-May 2022X

1 group listed (1 APT, 0 other, 0 unknown)

Digital Service Security Center
Electronic Transactions Development Agency

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