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Mac.c is a macOS-focused information stealer sold through underground forums. It is designed to steal sensitive data from Apple systems, including credentials stored in iCloud Keychain. Mac.c has been associated with the developer alias mentalpositive. MacSync has been described as a rebranded and enhanced malware-as-a-service derivative of Mac.c.
Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.
1 CVE Mallory has correlated with this family across public research and vendor advisories. Each row links to the full Mallory page for that vulnerability.
"Threat Details and IOCs Malware: Mac.c, MacSync, MacSync Stealer CVEs: CVE-2023-31290"
19 distinct techniques documented for this family, organized by ATT&CK tactic.
«закрепляется в системе... через... .zshrc». | «загрузчик передавал его содержимое в zsh, а команды, скрытые после поля DESCRIPTION, загружали следующий .app-бандл».
3 indicators attributed across vendor reports, sandbox runs, and researcher write-ups. Full values are available in Mallory.
IPs, domains, and DNS infrastructure linked to this family.
Other indicator types observed in public reporting.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Earlier macOS infostealer family referenced as the codebase/precursor from which MacSync is derived (rebranded and improved).
Named malware referenced in the report’s IOC summary; no functional description provided in the content.
Named malware referenced in the Trust Wallet extension compromise IOC list; specific functionality not described beyond being part of the malicious activity set tied to wallet data theft.
A macOS stealer referenced as having substantial code similarity with Phexia’s stealer module. It is described as having both an original owner, audi, and an updated-version coder, mentalpositive.
Match every observed IP, domain, and hash against your live telemetry.
Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.