MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body contains a URL pointing to a redirector, which is likely intended to lure users to malicious content. The presence of numerous links, many hosted on Shopify, suggests an attempt to obscure the final malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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.ru/pify?keyword=courteous+expressions+worksheets+for+grade+2+pdf In PDF document text
- http://files.northwestclarefamilyresourcecentre.com/uploads/1/3/1/1/131164236/9354691.pdfIn PDF document text
- http://files.russianspoon.com/uploads/1/3/0/8/130874369/8060980.pdfIn PDF document text
- http://pewusus.petiakostadinova.net/uploads/1/3/0/7/130738799/0a4846656456f9.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/1/0431/9268/0611/files/bavogakanazokilonif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5477/4949/files/rohatgi_an_introduction_to_probability_theory_and_mathematical_statistics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0777/8711/files/fetewe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9153/2699/files/91558843693.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7287/0807/files/72473224371.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0008/5160/files/31275511825.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9117/3278/files/zowokilubezonuwibege.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7945/1289/files/53143365723.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5588/3175/files/6472161545.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9073/0405/files/28134327911.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_off00005c3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C3A | 5532 bytes |
SHA-256: 7a9e45f04a308400f13908f0903582ec071422b5bdb6e745fd2b90aeec842635 |
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font_01_sfnt_off00006f29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F29 | 10440 bytes |
SHA-256: 0249f5a660e2166ed396804a4dbd1c860bd2a90060af3e248e41a6dfd42f1550 |
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