Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7e5f74b413b8f95…

MALICIOUS

PDF

32.7 KB Created: 2021-07-05 13:53:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 10104fe482a7dc552e71b0382de12843 SHA-1: 6bab9b261e9067fec190f38e18cd808de1008af1 SHA-256: b7e5f74b413b8f9518b31759c52c8dca24ad5f11305f57470392cc92bde96e4c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one pointing to known malicious redirector infrastructure at http://netcdn.tw/app/431946152/how-to-hack-roblox-games-game-hack. The document body and heuristics indicate a lure for game hacks or generators, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the nature of the links and the lure implies a redirection to a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/431946152/how-to-hack-roblox-games-game-hack In PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-daily-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/conscle-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-font-free_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-app-free-download_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-codes-redeem_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-hack-the-2nd-player-in-roblox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/old-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/hacks-and-cheats-for-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
font_00_sfnt_off00002962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2962 22284 bytes
SHA-256: 9f5cb3a4a2688b5520e61ec9a175d8c63bad2903bf4347c7d83279a1fd2bb7b5
font_01_sfnt_off00005aa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA3 19080 bytes
SHA-256: c7de099e57cfd7f442f0afeba5034f70bb3b049a86a5e548322d77ee9b6e5cee

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