Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc6d8dd29dd061cd…

MALICIOUS

PDF

42.9 KB Created: 2021-05-13 03:03:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: c3fcf8d0e9eea52a6b87255b6abac895 SHA-1: d76edad510a6c91236392b7dfa3cfce6378b802e SHA-256: dc6d8dd29dd061cd72f08e76f2a251c0c95f5ce3caa1425bc720406d8f2e5e23
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/479516143/can-you-play-minecraft-for-free-game-hack PDF link annotation
    • http://nalmpantistractors.gr/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/coin-master-heaven-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/rbx-com_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/how-to-get-free-robux-no-human-verification_GM431946152.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
font_00_sfnt_off00004c7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C7F 25224 bytes
SHA-256: 6b7eb10bbff1edcb942b666b697a062e4bfaf993ca365a5c0e7fb646f7b13918
font_01_sfnt_off000084f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F4 18420 bytes
SHA-256: 81bede04d90c080fa29d20db124f1531358f39ee91ce610139dedd08dc3401fc

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