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HBO Max Reddit Account Hijacked to Spread PasteSwitch ClickFix Malware

GBHackersby Mayura Kathir ()3 min read1
AI summary · glm-5.3Summaries by Vani AI

Hijacked HBO Max verified Reddit account ran 108 ClickFix malvertising ads delivering AMOS and Amatera stealers plus crypto clippers to macOS and Windows users.

Threat actors hijacked HBO Max's verified Reddit account (u/hbomax) to run 108 malicious ClickFix ads over 48 hours in a campaign tracked as PasteSwitch, researched by Hudson Rock and ADAMnetworks. macOS victims were served curl | zsh chains deploying MacSync and Atomic macOS Stealer (AMOS), which harvest browser credentials, Telegram data, Apple Notes, and macOS passwords, while fake Ledger, Trezor, and Exodus apps targeted BIP39 seed phrases. Windows users received an InstallFix chain using an MP3/HTA polyglot with mshta and PowerShell, scheduled-task persistence, AMSI disabling, and in-memory Amatera Stealer that hid C2 traffic (77.91.65.13:443) behind a facebook.com TLS SNI. AnimateClipper and ZigClipper components swapped copied crypto wallet addresses and used Binance Smart Chain contracts as mutable C2 dead drops; Reddit paused the ads and the initial access path remains undisclosed.

Key facts
  • Verified HBO Max Reddit account abused to run 108 ClickFix malvertising ads in 48 hours
  • PasteSwitch framework served OS-specific payloads: AMOS/MacSync on macOS, Amatera Stealer on Windows
  • Windows chain used MP3/HTA polyglot, mshta, PowerShell, scheduled tasks, and AMSI bypass
  • Amatera C2 at 77.91.65.13:443 spoofed facebook.com TLS SNI to evade network monitoring
  • Crypto clippers abused Binance Smart Chain contracts as rotating C2 dead drops
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Indicators of compromise

auto-extracted · verify before use · export allAll
TypeIndicatorContext
domaincode-desktop.compromoting a fake macOS disk-cleaning service, 11 using the code-desktop[.]com theme, and six directing users to hbomax-macos[.]com . Th
domaincodex-craft.cominting to hbomaxx[.]app , 36 tied to the developer-oriented codex-craft[.]com , 15 promoting a fake macOS disk-cleaning service, 11 usi
domainhbomax-macos.comng the code-desktop[.]com theme, and six directing users to hbomax-macos[.]com . The mix shows that the operators were targeting both en
domainhbomaxx.appal lure categories, including 40 advertisements pointing to hbomaxx[.]app , 36 tied to the developer-oriented codex-craft[.]com , 1
domainhbomaxx.uscted to counterfeit HBO Max-themed landing pages, including hbomaxx[.]us . Rather than serving a conventional installer, the site
ipv4164.90.161.147lemetry and /contact exfiltration September macOS execution 164.90.161.147:80 September macOS Post-execution HTTP contact September ma
ipv4165.22.199.85rect-to-IP TLS C2 using facebook.com SNI Exact PE execution 165.22.199.85 September macOS Telemetry and /contact exfiltration Septemb
ipv445.94.47.204omains. Indicators of Compromise Address Branch Role Source 45.94.47.204:80 AMOS helper Enrollment, task polling, and acknowledgemen
ipv477.91.65.13nd-and-control technique in which Amatera communicated with 77.91.65.13:443 while presenting facebook.com in TLS SNI and HTTP autho

From the original article

3 min read at gbhackers.com

Threat actors hijacked HBO Max’s verified Reddit account, u/hbomax, and used its trusted advertising identity to distribute 108 malicious ClickFix advertisements in a coordinated 48-hour malvertising campaign. The operation, tracked as PasteSwitch, delivered platform-specific malware to macOS and Windows users, including information stealers, in-memory loaders, cryptocurrency clippers, and fake wallet applications.

GBHackers

By Mayura Kathir · gbhackers.com

Read the full article at GBHackers

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.