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Russian Cyberspies Concentrating on Ukraine Pose as Telecoms Suppliers

By Ionut Arghire on September 21, 2022

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A Russian cyberespionage group tracked as UAC-0113 is utilizing dynamic DNS domains masquerading as telecommunications suppliers in ongoing assaults concentrating on entities in Ukraine, Recorded Future experiences.

Newly recognized staging infrastructure overlaps with techniques, methods, and procedures (TTPs) beforehand attributed to the group and exhibits that the menace actor continues its assaults on Ukrainian targets seemingly in assist of Russia’s army actions in Ukraine.

UAC-0113 has been linked by the Pc Emergency Response Crew of Ukraine (CERT-UA) to the superior persistent menace (APT) actor Sandworm (often known as Telebots, Iron Viking and Voodoo Bear), which is probably going a part of the Most important Intelligence Directorate of the Common Employees of the Armed Forces of the Russian Federation (GRU).

In June 2022, a CERT-UA report detailed UAC-0113’s use of the DarkCrystal distant entry trojan (RAT) to focus on entities serious about authorized issues associated to Ukrainian army service personnel.

Nevertheless, a lately recognized malicious ISO file exhibits that the group has switched to the usage of two different malware households, specifically Colibri Loader and Warzone RAT. The attackers make use of HTML smuggling for malware supply, Recorded Future says.

DarkCrystal RAT, Colibri Loader, and Warzone RAT are commodity malware households that may be bought on numerous underground boards and that are common amongst numerous menace actors, offering them with a broad vary of capabilities, together with knowledge theft and payload downloading.

After taking a deep dive into domains lately related to UAC-0113, in addition to their connecting IP addresses, Recorded Future recognized further infrastructure utilized by the menace actor, in addition to overlaps with infrastructure beforehand attributed to the group, together with the usage of the identical LS certificates supplier for a number of domains.

Domains recognized in July and August 2022 are spoofing telecommunications operators in Ukraine, but additionally telecoms firm Starlink, which is operated by American firm SpaceX.

An ISO file contained inside the malicious webpage is robotically downloaded onto the guests’ computer systems by way of HTML smuggling. The employed method and JavaScript code on the web page present similarities with APT29 (Cozy Bear), one other prolific Russian cyberespionage group.

“It’s at the moment unknown why there’s a similarity overlap between the two menace actor teams’ use of this ISO supply performance; one speculation is that UAC-0113 took inspiration from or instantly copied this performance from open supply reporting on APT29, or that the identical open supply useful resource was used as a codebase,” Recorded Future notes.

Associated: Extra Russian Assaults Towards Ukraine Come to Gentle

Associated: Russian Use of Cyberweapons in Ukraine and the Rising Risk to the West

Associated: Russian Cyberspies Goal Diplomats With New Malware

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