Malicious PDF — malware analysis report

Static analysis result for SHA-256 68de221e5420e52f…

MALICIOUS

PDF

42.3 KB Created: 2020-08-03 23:47:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3d24b35c1d2d92e8bc54c7fe3bb9985 SHA-1: 5fcd28ace89ae97317d018c966925d313088c7d5 SHA-256: 68de221e5420e52f5338d79e1b83c035301fb44275d7eadb37dbd5dd61d719b9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. This indicates an attempt to direct users to harmful content, likely for phishing or malware distribution. The presence of a large number of links, including to Shopify domains, suggests a link farm or SEO manipulation tactic to attract victims.

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.ru/pify?keyword=biological+control+of+pests+and+diseases+pdf In PDF document text
    • http://files.forouryouthfoundation.org/uploads/1/3/1/8/131856852/pexub.pdfIn PDF document text
    • http://files.mrtoddsclassroom.com/uploads/1/3/1/0/131070493/a2cea6a430.pdfIn PDF document text
    • http://fatim.paperflowersupplies.com/uploads/1/3/1/3/131379706/fanigojipuwonog_deletetitubig.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/1/0435/8907/5102/files/temobufoninudeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9562/9725/files/89135514328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3343/6066/files/98579094108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3206/8775/files/filape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6349/files/sceptre_tv_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9204741539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2225/3205/files/56292905352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/nevebigapiparuvopatapide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9545/7941/files/netaxesebuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5876/4696/files/77992441938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5949/4555/files/nodexule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/sevaxijifeso.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_off000067fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FD 5372 bytes
SHA-256: 688c630608b4b00ece93a59405684661c282986a8230006d88c8ea32f5018cdd
font_01_sfnt_off00007a53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A53 9980 bytes
SHA-256: 54821192fff7e1d9145406c83b9bd49a7715d6b707da4aa4c513b6d42213d64a

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