Introduction Late last week, we saw new samples of Word documents from TA551 (Shathak) pushing malware. This actor was active up through 2020-12-18 pushing IcedID malware before going on break for the holidays. Now that it's returned, TA551 has been pushing Qakbot (Qbot) malware instead of IcedID.
Images from the infection See below for images associated with the infection in my lab environment.
Notes This month, the affiliate or campaign identification string for Qakbot malware distributed through TA551 has been krk01. When my krk01 Qakbot-infected host started spamming more Qakbot, the affiliate/campaign ID for Qakbot samples caused by this malspam was abc120. Because of this and its previous history pushing different families of malware, I believe TA551 (Shathak) is a distributor for other criminals in our cyber threat landscape. The other criminals push malware (like the criminals behind Qakbot), while TA551 is specifically a distribution network. Indicators of Compromise (IOCs) SHA256 hash: 17cd3c11fba639c1fe987a79a1b998afe741636ac607254cc134eea02c63f658
SHA256 hash: 231b081480a80b05d69ed1d2e18ada8a1fd85ba6ce3e69cc8f630ede5ce5400e
Final words A pcap of the infection traffic and and malware from the infected Windows host can be found here. --- |
Brad 433 Posts ISC Handler Jan 26th 2021 |
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Jan 26th 2021 1 year ago |
The same image was in https://bazaar.abuse.ch/sample/7d1bd0f1e6c73ead87681243ebfc1576158807ae4d3448d39b1ee35db265b753/, which was labeled as "AgentTesla"
Except the "image1.png" I could not find a macro. Is this a topic for another diary? |
Anonymous |
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Jan 26th 2021 1 year ago |
Thanks for the heads up. There appears to have been a mistake in the diary, the actual link should be: bazaar.abuse.ch/sample/17cd3c11fba639c1fe987a79a1b998afe741636ac607254cc134eea02c63f658/
I've also got a copy of the DLL in the paged linked at the end of the diary. The diary should have the correct link now. |
Brad 433 Posts ISC Handler |
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Jan 26th 2021 1 year ago |
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