A U.S.-based civil engineering firm has been targeted by Russia-aligned hackers with a history of malicious activity linked to the war in Ukraine, according to a blog post released Tuesday by Arctic Wolf.
A Russia-aligned threat group, known as RomCom, used SocGholish malware to target the company in a September attack, according to the blog. A Russian foreign intelligence agency, GRU unit 29155, has used SocGholish to target various entities in connection with the war since 2022.
SocGholish is operated by a group known as TA569, which usually works as an initial access broker.
“SocGholish has grown into commonly used traffic distribution system typically used for criminal purposes,” said Jacob Faires, senior staff threat researcher at Arctic Wolf. “A single fake browser-update click can give an attacker remote access in minutes.”
Researchers did not identify the targeted company by name, describing it only as a firm that has previously done work for a city that has close ties to Ukraine. RomCom has a history of malicious attacks against various organizations or individuals that have provided support to Ukraine.
Researchers said the attack is the first time they have detected SocGholish distribute a payload from RomCom. The attack was ultimately blocked, according to researchers.
RomCom has been actively involved in prior attacks against Western organizations. In August, researchers at ESET uncovered RomCom exploiting a zero-day vulnerability in WinRAR. That campaign targeted organizations in Europe and Canada.
In 2023, RomCom targeted a U.S. healthcare firm that was providing medical assistance to Ukrainian refugees, according to a blog post from Arctic Wolf.
Tensions between the U.S. and Russia have increased in recent months, as the Trump administration has attempted to reach a negotiated end to the Ukraine war.
Russia-aligned groups have used various asymmetric methods to target Western support for the Ukrainian war effort. U.S. authorities and allied nations warned in May about the Russia-linked threat actor Fancy Bear targeting logistics and other organizations providing assistance to Ukraine.
Editor’s note; Updates with comment from Arctic Wolf.