Malicious PDF — malware analysis report

Static analysis result for SHA-256 3272cc14a1c71a4f…

MALICIOUS

PDF

44.4 KB Created: 2021-06-04 04:02:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 8712ea4d8f2f3024ece8aa31519d3010 SHA-1: deeb1d74dc24a6775ae416b654243f4383afdfda SHA-256: 3272cc14a1c71a4ffdc36f2d9a7f609e17002c009115ace1fcafeb36b2994997
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free generator / game hack" which redirects to a malicious URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to potentially malicious content, likely a phishing or scam page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/minecraft-thumbnail-maker-free-game-hack PDF link annotation
    • http://library.persadabunda.ac.id/repository/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-spins-coin-master-links-no-human-verification_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-lovenet_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coinmaster-free-cards_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-premium-free_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_off000053a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53A3 24312 bytes
SHA-256: 547fd3d30bd394c6783e3b64ef1b97f5f118e60e75f1e763884fd8c23d58b778
font_01_sfnt_off00008a8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8F 18536 bytes
SHA-256: 131fc1cc1290202989dcb25b40ce54b3d23585dd48ca8512db4c52c882d58c16

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