Malicious PDF — malware analysis report

Static analysis result for SHA-256 6473ced196bcbcdc…

MALICIOUS

PDF

42.5 KB Created: 2021-05-18 03:01:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cd1e919e8c5080a101afda268b8f774c SHA-1: 6535b1eab1630133401985a37a458720c1d69f2d SHA-256: 6473ced196bcbcdc72cd28ceb7b33a042f8443e22c992183a198529cf4e229ba
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors, specifically promoting 'free generators' and 'game hacks' to lure users. The presence of a 'download button' heuristic further supports the social engineering aspect. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or malware distribution attempt, likely initiated via spearphishing attachment.

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/431946152/bux-gg-robux-free-game-hack In PDF document text
    • http://www.copoint.co.uk/images/rbx-hut_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-village-3_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/dailyrobux_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-free-gift-link-2021_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-hack-tool-india_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
stream_003_off000047e4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47E4 25552 bytes
SHA-256: d6cb6cb7ae132a8f93168b1b4e166f95a5612d76e85185879125ebe374fbd894
font_01_sfnt_off0000838f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x838F 18304 bytes
SHA-256: 8d8733a7c40ec122fa0656e79a44d71687d26648648a8c1fb15c9a660e1bc95a

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