Malicious PDF — malware analysis report

Static analysis result for SHA-256 3af0ccd483ead4db…

MALICIOUS

PDF

36.9 KB Created: 2020-08-02 00:50:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6afbcd27700d5f2ccbd7c4a4ccb11f8a SHA-1: 82a630ddc1d9412cf0254c6172455e77e70b1b5a SHA-256: 3af0ccd483ead4dbf576a05f52c825c48e8a513a65ed781ea42e495650ab2cc9
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure. The document body contains text that appears to be a report card, likely a lure to encourage clicks. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to obscure the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/pify?keyword=ksde+report+card In PDF document text
    • http://files.termarkleather.com/uploads/1/3/2/6/132682665/85b01c3aa355523.pdfIn PDF document text
    • http://files.foodbuddha.ca/uploads/1/3/0/8/130873781/3554481.pdfIn PDF document text
    • http://files.totallynordic.co.uk/uploads/1/3/1/4/131408970/dizagugiripimuz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2751/0934/files/36136277495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2137/7434/files/65900795276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2154/1271/files/77244398567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2803/8310/files/kixujiratozitiluf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52299098946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2421/1354/files/tovotogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5618/4996/files/zododupomerosesunuvugona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/fenekokinedenugejak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6986/6138/files/mekelunuweridava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3621/9291/files/mowerabitinogaxadufigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/51820961827.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn 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_off00005199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5199 5004 bytes
SHA-256: fb9cd9bc4b81387791c433702a6cf756fdbcafcf47f9df4c882fcd6ecc1a230f
font_01_sfnt_off000062ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AB 10672 bytes
SHA-256: 9d57a7713066f208c9a90d4db2cfc9e2d66a36126ad2544b5b1ca13fc79f0755

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