MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links to a redirector URL, identified as malicious. These links are part of an SEO link farm, suggesting a phishing or scam attempt to lure users to download content. The ML classifier strongly indicates maliciousness, and the overall structure points to a phishing lure.
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/wb?keyword=precalculus%20graphical%20numerical%20algebraic%20common%20core%20pdf In PDF document text
- http://files.thesledshed.net/uploads/1/3/1/4/131406049/5b64d2d6925003.pdfIn PDF document text
- http://files.sawyerscluster.com/uploads/1/3/0/7/130776483/zotiluga.pdfIn PDF document text
- http://files.negrojusticeleague.com/uploads/1/3/1/4/131407698/padub-farep.pdfIn PDF document text
- http://files.eagletheatrecompany046.com/uploads/1/3/2/7/132740614/b44e0.pdfIn PDF document text
- http://files.mineralintelligencecapital.com/uploads/1/3/1/3/131398251/moletosazu.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/1/0428/9835/8432/files/75904593322.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4021/1097/files/31177679734.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30553092986.pdfIn PDF document text
- https://sixuxonudibi.files.wordpress.com/2020/07/47395970130.pdfIn PDF document text
- https://ginopurox574319465.files.wordpress.com/2020/07/lipudagor.pdfIn PDF document text
- https://kezinoniwet.files.wordpress.com/2020/07/bodofisukekadovexedugopuj.pdfIn PDF document text
- https://jobujefebiwo.files.wordpress.com/2020/07/wetalepolube.pdfIn PDF document text
- https://josiwaja.files.wordpress.com/2020/07/85196512027.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0473/1300/files/kopuzonozewufujo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2073/0020/files/86914941126.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6443/5612/files/93418495257.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8461/0712/files/86401106163.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1999/2222/files/lozej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9270/4408/files/mopabemataresop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8782/1984/files/97119931262.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0873/6928/files/2449258440.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_off000056a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x56A9 | 5512 bytes |
SHA-256: f5fff53cca93b7cb353ea974ef6cb9e7bb64c3a12c94ecba63fc0d1294f655a5 |
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font_01_sfnt_off00006918.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6918 | 9748 bytes |
SHA-256: 534ed073fad567ccd31f4c150ae0faa2ab7371830e9d2e63452695690ecba148 |
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