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Venom Spider Uses Server-Side Polymorphism to Weave a Web Around Victims

· Published 03/05/2025 03:04 · Modified 05/05/2025 18:09

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Essential information

Published
03/05/2025 03:04
Modified
05/05/2025 18:09
Tags
2025-05-03 backdoor evasion javascript lnk files more_eggs polymorphism spear-phishing
Related entities
3 observables, 1 intrusion sets (apt), 8 techniques (mitre), 1 malware, 4 others

Description

Arctic Wolf Labs discovered a new campaign by Venom Spider targeting corporate HR departments with fake resumes containing the . The financially motivated threat group uses emails and abuses legitimate job platforms to apply for real jobs. The can steal credentials, customer data, and intellectual property. Several upgrades were found, including server-side and techniques. The attack chain involves obfuscated , , and a dropper that generates polymorphic code. Organizations are advised to train employees on phishing awareness, especially those in HR who regularly open attachments from unknown senders.

External references