MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=arachidonic+acid+cascade+pdf'. This URL is embedded within the document body, suggesting an attempt to trick the user into visiting a malicious site. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=arachidonic+acid+cascade+pdf In PDF document text
- http://files.fureverfashionbyaprilllc.com/uploads/1/3/0/8/130814118/5600020.pdfIn PDF document text
- http://files.jimdykesministries.com/uploads/1/3/2/6/132681556/2892283.pdfIn PDF document text
- http://files.magcon.org/uploads/1/3/1/8/131871593/1391154.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/1/0440/9946/9464/files/38304933074.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6375/4404/files/tofevelekugusufekexuwu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6881/6544/files/38490550704.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/3936/2970/files/catalogo_bujias_ngk_mexico.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6078/9409/files/mergers_and_acquisitions_as_a_growth_strategy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6993/1671/files/4493758730.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/figarawevig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5665/9621/files/math_in_the_modern_world.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8032/7076/files/lasifakopogopiwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4243/8310/files/62283011865.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6289/4495/files/kakagogisapoxiwajexopoki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7519/0422/files/ncc_admission_form_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9423/7589/files/chess_opening_queen_s_gambit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7259/3832/files/jirizaxipikuziletine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7471/4784/files/fokazafusibopabumix.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bc8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC8C | 5200 bytes |
SHA-256: e715acb7267c03f480b9cc882570827611b6e1507367b4f238031ef8a61629cb |
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font_01_sfnt_off0000ce37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE37 | 15316 bytes |
SHA-256: 8d0e539850a2d345f379ecb77845e5b0fe124f01f247a02c40eaa19fc259ad76 |
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