Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa396dd8e240e4d8…

MALICIOUS

PDF

36.0 KB Created: 2021-06-27 23:47:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ffdc6005f8414472245a97d72f3b3758 SHA-1: 2c1225a0b0f67370117827ad7c758e1ee783eaf1 SHA-256: fa396dd8e240e4d8f8cfdf67b942896b6c0abc448f3f73d1dd26de632d71a529
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a link that redirects to known malicious infrastructure, specifically advertising a 'free generator / game hack'. This lure is designed to trick users into visiting a site that likely hosts further malware or phishing content. The ML classifier also strongly flagged this PDF as malicious.

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.co/app/431946152/best-free-fortnite-roblox-game-game-hack In PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-flip-master-coins_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/roblox-hack-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-spins-for-coin-master-on-1-19-19_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-roblox-acc_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/does-roblox-good-at-detecting-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/gold-card-coin-master-free_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
font_00_sfnt_off0000346c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x346C 22732 bytes
SHA-256: 6acaf66bdfddaa34a2afa79ba511067116d513cbd267342660b84c387c7c01ab
font_01_sfnt_off0000676c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676C 19132 bytes
SHA-256: 9e974859a9eee6d892d63ff1e04178b62b2f050505065bafde0f75b302ac3927

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