Malicious PDF — malware analysis report

Static analysis result for SHA-256 28240f17409751a9…

MALICIOUS

PDF

40.9 KB Created: 2020-08-06 08:37:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 96f80c2dcd290e41860bc264268bea4c SHA-1: e0a23e955d70146bcf92a0d0dc5dea787efc2167 SHA-256: 28240f17409751a9c11f47a368a694b625dde53a03d08be589291f7339117c3b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a meal plan PDF. This redirector likely leads to further malicious content or exploits. The PDF also contains a large number of links to other PDFs hosted on Shopify, suggesting a link farm or SEO poisoning attempt to increase visibility of the malicious content. The ML classifier strongly indicates maliciousness.

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.com/pify?keyword=renaissance+periodization+meal+plan+pdf In PDF document text
    • http://files.learnwithmmg.com/uploads/1/3/2/8/132814427/xoxuvugekot_sojitide_wavejopibu_wurixazofawik.pdfIn PDF document text
    • http://files.yonemoto.com/uploads/1/3/1/4/131453897/545605.pdfIn PDF document text
    • http://files.edaumarchitect.com/uploads/1/3/1/3/131378950/4918198.pdfIn PDF document text
    • http://files.sgteachersassociation.com/uploads/1/3/1/4/131409305/8228693.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/1/0428/4622/4551/files/66072424777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7220/9574/files/56229058425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1889/5010/files/660583091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1390/5311/files/fujipupugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2742/3654/files/bumowokopinuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6353/1933/files/xaneputato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8872/3616/files/1719141585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3990/6197/files/present_simple_exercise_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0505/0021/files/34743508718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2038/1342/files/a_journey_through_anglo_american_literature_learner_s_material.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/accounting_standard_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/54532915369.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 6

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_off000060ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FF 5360 bytes
SHA-256: 80d7b009e8e74e238ced1fd2d97ffefbdeb778c4b3c73ddcef09d862b20cf99f
font_01_sfnt_off00007331.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7331 10480 bytes
SHA-256: 19ed347c55eeb51482e4d7f8663d49a6671ae40f0876dc2d98d63701d1bb5caf

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