Security scientists have found dozens of new regional targets and new cyber-attack instruments joined to Indian APT team SideWinder.
The suspected state-sponsored group – also recognized as Rattlesnake, Hardcore Nationalist (HN2) and T-APT4 – comes less than the spotlight in a new report from Team-IB, Outdated snake, new skin: Analysis of SideWinder APT exercise between June and November 2021.
For the duration of the 6-month interval, the risk intelligence company uncovered SideWinder menace actors attempted to attack 61 government, military, regulation enforcement and other targets in Afghanistan, Bhutan, Myanmar, Nepal and Sri Lanka.
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It also connected the team to a 2020 attack on the government of the Maldives.
SideWinder’s threat vector of alternative remains spear-phishing email messages, which it fired at these targets during the period of time. Two campaigns highlighted email messages in which the APT team spoofed a cryptocurrency organization, Team-IB said.
If a sufferer clicks on a malicious backlink in the phishing email, it will subsequently obtain a destructive document, an LNK file or a destructive payload. The LNK file downloads an HTA file, which in transform downloads the payload. The payload itself could be a reverse shell, a remote entry Trojan (RAT) or an information stealer, the report claimed.
Team-IB found two new house-grown tools made use of by SideWinder in the course of the marketing campaign: a RAT dubbed SideWinder.RAT.b and an info-stealer it called SideWinder.StealerPy.
The latter is designed to harvest Google Chrome searching historical past, credentials saved in the browser, the record of folders in the listing, meta information and the contents of docx, pdf, txt data files, and additional.
Equally custom made resources use Telegram to connect with compromised concentrate on machines somewhat than classic C&C servers, as it’s a lot more hassle-free to do so, Group-IB said.
Following analyzing the network infrastructure employed by SideWinder, the seller claimed it was in all probability the very same entity as the BabyElephant APT group.
“It is not unheard of for APT teams to borrow instruments from each other, which normally sales opportunities to issues in attribution,” claimed Dmitry Kupin, Team-IB senior malware analyst.
“As this sort of, we identified that some indicators of compromise associated to a different APT team, Donot, have been wrongly attributed to SideWinder. Nonetheless, we discovered additional evidence confirming that Patchwork (Hangover), Donot and SideWinder sometimes borrow instruments and malicious paperwork from each and every other and modify them for their demands.”
Team-IB was not able to say how several of SideWinder’s phishing attempts had been successful.
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