Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d6dbe3a446d5e48…

MALICIOUS

PDF

34.5 KB Created: 2021-06-26 04:06:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3bbeb7da68b027d1db9b306cbf468e1b SHA-1: a6dadc62a1297b3e0d1e270c41d394a77b37b3fc SHA-256: 4d6dbe3a446d5e480492ece94356f3378eb5ab34233b041ef705823696ef5cdb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links to a known malicious redirector, masquerading as game hacks and generators. The document body and embedded URLs strongly suggest a phishing or scam attempt to lure users to malicious websites. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of malicious intent, likely leading to further malware download or credential harvesting.

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/roblox-pet-simulator-jump-hack-game-hack In PDF document text
    • http://www.arichuna.com/images/files/master-free-spin-and-coin-links-html-m-1_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/hack-coin-master-2021-pc_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://www.arichuna.com/images/files/roblox-mad-paintball-2-hacks_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/roblox-com-free-accounts_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/roblox-hack-commands-admin_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://www.arichuna.com/images/files/game-give-free-robux_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://www.arichuna.com/images/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-spins-coin-master-april-2021_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/can-lucky-patcher-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/robux-gg-free_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-minecraft-skin-maker_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
font_00_sfnt_off00002f65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F65 21756 bytes
SHA-256: 3bd7c99c0ab1b3110fba1985cc26d2413bcf945baded643f3039b6c604abd953
font_01_sfnt_off00005f8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8B 19776 bytes
SHA-256: dff99ab1550fae3a2cbd71fe2481d6d810b253fb8e89899c9a55bcef7e15f12c

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