Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fa7136a1862ccc0…

MALICIOUS

PDF

34.9 KB Created: 2021-06-20 05:33:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 934a4fa85b4384f31e3c03aabf4d10f3 SHA-1: e50c6af4f5b5e81854565f969f855df94fcc3efc SHA-256: 5fa7136a1862ccc0b7702e5b91d0476ac0d3fb247fe98915ead60de94f5a34a0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and other PDF files, masquerading as game hacks and cheats. The primary lure is a 'free generator / game hack' which directs users to the malicious URL http://netcdn.co/app/431946152/btools-roblox-hack-2021-unpatchable-game-hack. The document's structure and embedded links strongly suggest a phishing or scam attempt designed to lead users to potentially harmful content.

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/btools-roblox-hack-2021-unpatchable-game-hack In PDF document text
    • http://dcmetroapp.com/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://dcmetroapp.com/images/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • http://dcmetroapp.com/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://dcmetroapp.com/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://dcmetroapp.com/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/how-to-hack-coin-master-game-ios_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/free-money-codes-in-roblox-vehicle-simulator_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/without-human-verification-pubg-uc-hack_GM1330123889.pdfIn PDF document text
    • http://dcmetroapp.com/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/roblox-counter-blox-hack-download_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/free-robux-4_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/coin-master-hack-android-root_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_off00003071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3071 22232 bytes
SHA-256: cb49243f5468aaf51a2d6a10b0e1206282374cacaf7812dd8b95ef13205f93b4
font_01_sfnt_off000061be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BE 19504 bytes
SHA-256: 7444255ebb87ead260d08198d1d86c5c77efd8eeb808e9955f73d10025645507

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