Malicious PDF — malware analysis report

Static analysis result for SHA-256 36dd95b8f127d973…

MALICIOUS

PDF

40.9 KB Created: 2021-05-19 21:06:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: bf0d50d3fc2e403340fce17ba3ab4a87 SHA-1: e1c3a49e66ed59d4900c4e1ea9cb2e22f2ca19a9 SHA-256: 36dd95b8f127d9736a08b508fa9a4b92786364a1fa7ed67f727e709c241089fb
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as 'game hacks' and 'free followers'. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely to lead users to further malicious content or downloads. No scripts were extracted, but the presence of numerous malicious URLs indicates a high likelihood of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/835599320/how-to-free-tiktok-followers-game-hack In PDF document text
    • http://iricamidelcuore.it/images/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • http://iricamidelcuore.it/images/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://iricamidelcuore.it/images/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://iricamidelcuore.it/images/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://iricamidelcuore.it/images/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://iricamidelcuore.it/images/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://iricamidelcuore.it/images/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://iricamidelcuore.it/images/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://iricamidelcuore.it/images/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • http://iricamidelcuore.it/images/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
    • http://iricamidelcuore.it/images/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://iricamidelcuore.it/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://iricamidelcuore.it/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://iricamidelcuore.it/images/android-coin-master-3433-apk-hack_GM406889139.pdfIn PDF document text
    • http://iricamidelcuore.it/images/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://iricamidelcuore.it/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://iricamidelcuore.it/images/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • http://iricamidelcuore.it/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://iricamidelcuore.it/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://iricamidelcuore.it/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000471a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x471A 24476 bytes
SHA-256: af0ade310bb40ba8debad8605af01b52490e7e1ab12eb92dd525bfd7fe1bf27e
font_01_sfnt_off00007f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2F 17692 bytes
SHA-256: b1350bf56690d27d714b1cc7d30feebe79b07d13051f2f0f8390386be087c6e1

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