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HomeHackerOldGremlin Ransomware Gang Identified for Concentrating on Russia Launches Linux Malware

OldGremlin Ransomware Gang Identified for Concentrating on Russia Launches Linux Malware


OldGremlin is a infamous ransomware group recognized for focusing on Russian organizations and has launched a wide-scale multi-million marketing campaign. Their targets are Russian entities, and the group calls for massive ransoms in return. The gang’s victims embrace organizations in insurance coverage, logistics, retail, software program growth, actual property, and banking.

In accordance with a report from Group-IB, OldGremlin ransomware gang is a Russian-speaking ransomware gang that has been pretty energetic since 2020 and round sixteen malicious campaigns have been attributed to this gang in the course of the previous two and a half years. All of those focused Russian organizations.

Also called TinyScouts; OldGremlin is among the many few financially motivated cybercrime teams (different teams embrace Crylock, Dharma, and Thanos), focusing totally on Russian entities.

Thus far, OldGremlin ransomware gang has performed ten phishing e mail campaigns, all launched in 2020, a profitable ransomware assault in 2021, and 5 assaults in 2022. Their ransom calls for have been comparatively increased. In some instances, the group even requested for $16.9 million and netted round $30 million in unlawful revenues.

OldGremlin Ransomware Gang Known for Targeting Russia Launches Linux Malware
Group-IB

In its debut 12 months, 2020, the gang carried out dozens of campaigns focusing on micro-finance companies, a tractor producer, a metals and mining agency, and enterprise media holding agency consecutively.

“The demanded ransom is subsequently typically proportional to the corporate’s measurement and income and is clearly increased than the price range mandatory for making certain an appropriate degree of knowledge safety.”

Group-IB

Marketing campaign Particulars

In accordance with Group-IB’s press launch, OldGremlin has developed a brand new malware for Linux methods. The group poses as reputed companies corresponding to media group RBC, Russian Union of Industrialists, 1C-Bitrix, or authorized help supplier Guide Plus to infiltrate networks by way of phishing emails.

The group manages to realize preliminary success by way of a phishing e mail and deploys instruments like Cobalt Strike for lateral motion. It establishes persistence via the creation of scheduled duties and acquiring escalated privileges.

It additionally exploits a flaw in Cisco AnyConnect (CVE-2020-3153 and CVE-2020-3433) and good points distant entry to the focused infrastructure utilizing instruments like TeamViewer. As soon as that is completed, the group stays contained in the sufferer’s community for round 49 days after which launches the ransomware.

Victims can comprise the risk utilizing an efficient malware detection resolution throughout this time. Group-IB famous that the newest phishing wave assigned to OldGremlin ransomware occurred on 23 August 2022 through which phishing emails embedded hyperlinks to a ZIP archive payload hosted on Dropbox for activating the killchain.

Resultantly, the archive information launch a rogue LNK file (TinyLink) for downloading a backdoor (TinyFluff). Furthermore, the group makes use of different implants apart from TinyFluff, together with TinyPosh, TinyShell, TinyNode, earlier than deleting information backups. Then it launched the .NET-based TinyCrypt ransomware.

Though the group is targeted on Russian organizations, Group-IB famous that it would broaden its geographical boundaries after a while.

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