Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e41b079bc206311…

MALICIOUS

PDF

41.9 KB Created: 2021-05-15 13:12:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2f3fed4621aec2d8a13751de27364e7e SHA-1: 8c8543f62891c843b57499e38dcad79081effdf8 SHA-256: 3e41b079bc20631164642b4b1e1d1531de51339e0c8164ff2beb8a7f7685c89d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "free generators" or "hacks" for popular games. The primary lure URL is https://netcdn.xyz/app/406889139/coin-master-cheat-apk-free-download-game-hack, which is part of a pattern of distributing malicious PDFs via compromised websites. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-cheat-apk-free-download-game-hack In PDF document text
    • http://learningarabic.co.uk/images/free-spin-link_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://learningarabic.co.uk/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://learningarabic.co.uk/images/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/minecraft-pe-free-apk_GM479516143.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
stream_003_off000046ad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46AD 25392 bytes
SHA-256: 67c188c9862db857deffae5440b61ea1e4f78e7f2f5ac0ecafe56e64f41a1c99
font_01_sfnt_off00007fe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE0 18800 bytes
SHA-256: 614973bcdfa501bdaf060565b49be4cc884ef58c8073729baf941f509f050db5

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