Malicious PDF — malware analysis report

Static analysis result for SHA-256 20324aa6ac9439fb…

MALICIOUS

PDF

34.7 KB Created: 2021-06-25 19:26:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fca50287e81e5caedb60eb5181d64981 SHA-1: ad73a307360371fbce190732c7503056f2ad3d54 SHA-256: 20324aa6ac9439fb111789cfda05b5304f682c4b99926ecd14a8c3dc0a78c3bb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to known malicious infrastructure. The document body and embedded URLs reinforce this, indicating a phishing attempt to trick users into visiting a malicious site. No scripts were extracted, but the primary attack vector appears to be a malicious link within the document.

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/how-to-hack-roblox-accounts-with-console-game-hack In PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-hack-item-free_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-free-fall-damage-reddit_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/good-free-robux_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/using-cheat-engine-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-unlimited-robux-codes_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-robux-hack-top_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-hack-roblox-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-cheat-engine-unlimited-cins_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/app-hack-robux_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/mmc-zombies-project-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/download-noclip-hack-for-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-cheat-booga-booga_GM431946152.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_off00002fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA2 22192 bytes
SHA-256: e74fcacc3bde79ad91e6a8b829743758e7ab0227cf77ad8599927a6775656aeb
font_01_sfnt_off0000611a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x611A 19548 bytes
SHA-256: 1123a3e82bdab03c6d9f9ecee28d52f13cdcd24bd191fadb3006d958ba461ad0

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