Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fef347f4304b550…

MALICIOUS

PDF

48.1 KB Created: 2020-08-10 05:04:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a73393f64efb3c9ebf11434156e6743c SHA-1: faf2c9ce37cceecfb287e8e713f96cc5e194ba86 SHA-256: 6fef347f4304b5503c36822c8bd68d1675a02652bc03a9fd6f853c43b0589986
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service designed to obscure the final destination. The primary redirector URL, "https://ttraff.cc/pify?keyword=story+central+1+student+book+pdf+free+download", is flagged as malicious and associated with a link farm, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, also contains this redirector URL and other Shopify links, reinforcing the lure for free downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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=story+central+1+student+book+pdf+free+download In PDF document text
    • http://files.voxnsccp.com/uploads/1/3/0/7/130775346/ca8b4a89.pdfIn PDF document text
    • http://files.studioaase.ca/uploads/1/3/1/3/131381428/1939022.pdfIn PDF document text
    • http://files.sweetmaplecafe.co/uploads/1/3/1/4/131407901/laradurewezenagaxigu.pdfIn PDF document text
    • http://files.cathywmsart.com/uploads/1/3/1/3/131398085/34e650aa9d0f6.pdfIn PDF document text
    • http://files.thebellhouse.info/uploads/1/3/0/8/130814900/d51f92.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13503036424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/dubawibuborulisububizegom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/77363931764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/neraluribup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5670/1348/files/tudisujalabemaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9802/9733/files/mikobiperubigopejez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7192/9496/files/2400521947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/nirutifotekolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7288/8742/files/php_json_response.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2869/9553/files/harbor_freight_router_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rexalomofovuwazeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9140/9562/files/87923705019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0913/8075/files/rosidoromodomexisawap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/94061295363.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6F 5536 bytes
SHA-256: 2dcdbcf8c2cc57ac8287ef1c3d323266b5d736ff959cb6f0e57149983c409cba
font_01_sfnt_off00007f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5A 11756 bytes
SHA-256: 8af64813047a6c0fd708c6450131dc7f98aeb152c6c862ed620a181fb09547d6
font_02_sfnt_off0000a50f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA50F 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378