The Personal computer Emergency Reaction Team of Ukraine (CERT-UA) on Tuesday mentioned it thwarted a cyber attack versus an unnamed critical vitality infrastructure facility in the state.
The intrusion, for each the company, started off with a phishing email containing a connection to a destructive ZIP archive that activates the an infection chain.
“Viewing the link will obtain a ZIP archive made up of a few JPG photos (decoys) and a BAT file ‘weblinks.cmd’ to the victim’s personal computer,” CERT-UA reported, attributing it to the Russian threat actor identified as APT28 (aka BlueDelta, Fancy Bear, Forest Blizzard, or FROZENLAKE).
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“When a CMD file is run, various decoy web webpages will be opened, .bat and .vbs data files will be produced, and a VBS file will be introduced, which in switch will execute the BAT file.”
The subsequent section of the attack will involve managing the “whoami” command on the compromised host and exfiltrating the facts, together with downloading the TOR concealed provider to route malicious site visitors.
Persistence is attained by signifies of a scheduled job and remote command execution is executed making use of cURL through a legit support referred to as webhook.web page, which was just lately disclosed as applied by a menace actor known as Dark Pink.
CERT-UA reported the attack was in the end unsuccessful owing to the reality that obtain to Mocky and the Windows Script Host (wscript.exe) was restricted. It is really worth noting that APT28 has been linked to the use of Mocky APIs in the earlier.
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The disclosure arrives amid ongoing phishing attacks concentrating on Ukraine, some of which have been observed leveraging an off-the-shelf malware obfuscation motor named ScruptCrypt to distribute AsyncRAT.
Yet another cyber assault mounted by GhostWriter (aka UAC-0057 or UNC1151) is mentioned to have weaponized a not long ago disclosed zero-day flaw in WinRAR (CVE-2023-38831, CVSS score: 7.8) to deploy PicassoLoader and Cobalt Strike, the agency mentioned.
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Some areas of this post are sourced from:
thehackernews.com
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