Malicious PDF — malware analysis report

Static analysis result for SHA-256 74d0df0db73a65d7…

MALICIOUS

PDF

35.7 KB Created: 2021-07-06 23:09:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 0dc3ad619262cf08694b638caef30da9 SHA-1: 8b7c7d2147af93ff3ce349227b97f8beb250aab0 SHA-256: 74d0df0db73a65d7b6fb44be496b38a057d2f27fcfc335c893d7439bd890134f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector leading to a 'free generator / game hack' lure. The document body also contains similar URLs, suggesting a phishing or scam attempt to direct users to potentially harmful websites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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 http://netcdn.tw/app/479516143/minecraft-hacked-client-game-hack In PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-or-offers_GM431946152.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-robux-codes-and-free-roblox-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-roblox-boy-hair-codes_GM431946152.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/roblox-com-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-spin-and-coins-free_GM406889139.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/pants-roblox-girl-free_GM431946152.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/xxlolaplaysxd-free-robux-help_GM431946152.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/how-too-get-free-stuff-on-roblox-every-day_GM431946152.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/hacked-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/como-hackear-robux-2021_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_off00003681.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3681 22744 bytes
SHA-256: 6eadf8194f64f3b77476d02af7c925d1b5f8f6fb906f16c57e8d14576bcafe53
font_01_sfnt_off0000694d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x694D 18272 bytes
SHA-256: 0fd2c848ddb47650564216b877fc40ab0e75fea84b18b99b3308064a801b9109

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