Malicious PDF — malware analysis report

Static analysis result for SHA-256 20d02cdea7c91528…

MALICIOUS

PDF

34.7 KB Created: 2021-06-29 20:42:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 419d72aea445bbe1f626ef79911ab792 SHA-1: 7b79c099a034afcf76a980cdeff26a9cce7038c5 SHA-256: 20d02cdea7c91528f824c3a5359499c035ab8200bd496bec9427eb9059e1ad97
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically advertising game hacks and generators. The primary lure is the URL http://netcdn.co/app/431946152/hack-dragon-ball-online-roblox-game-hack, which is associated with known malicious redirectors. While no scripts were extracted, the document's structure and embedded URLs 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/hack-dragon-ball-online-roblox-game-hack In PDF document text
    • https://financia-business-school.com/static/upload/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-link-app_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/op-rewards-robux_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/2021-free-robux-no-website-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/android-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/robux-for-offers_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-tiktok-fans-quick-and-easy_GM835599320.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/robux-fre-codes_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-free-robux-without-waiting-now_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-have-free-robux-in-august-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-robux-for-free-legally_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-coins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B2 22160 bytes
SHA-256: deac38d94fbb0439ccb1c7d4fa47c69489dbeb2d90a49472d5869dda16f4c5e6
font_01_sfnt_off000062e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E7 18944 bytes
SHA-256: ceb485f4f7cddac76d35b1fa336d74c9a1a28b03457e9db68e353f771ca14da4

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