MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of embedded links designed to create an SEO link farm, directing users through a malicious redirector to download other PDFs. The primary redirector URL is https://ttraff.ru/wb?keyword=geochemistry%20books%20pdf%20free%20download, which is associated with known malicious infrastructure. This indicates a phishing or malicious content distribution scheme.
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.ru/wb?keyword=geochemistry%20books%20pdf%20free%20download In PDF document text
- http://files.harrydolan.com/uploads/1/3/0/8/130814785/powufu-nuregex.pdfIn PDF document text
- http://files.mycountyparks.org/uploads/1/3/0/8/130813516/molavudo_kudipuworizu_sojiguxexe.pdfIn PDF document text
- http://files.sunreyes.org/uploads/1/3/1/4/131483440/3158915.pdfIn PDF document text
- http://files.evolveastrology.com/uploads/1/3/1/4/131409508/a6526042ad.pdfIn PDF document text
- http://files.rosecitythunderbirds.org/uploads/1/3/0/9/130970014/8779069.pdfIn PDF document text
- http://files.wekeepyoumotivated.com/uploads/1/3/1/3/131380001/pidadil_zutateju_kigukezavik_totejo.pdfIn PDF document text
- http://files.horsesbyelliehesse.com/uploads/1/3/0/9/130969386/pexuz.pdfIn PDF document text
- http://files.neilltimberland.com/uploads/1/3/1/3/131398246/010fd8bf.pdfIn PDF document text
- http://files.heatherseagraves.com/uploads/1/3/2/3/132302774/nufigidoruz-reverime-mojavo.pdfIn PDF document text
- http://files.mizpah36.org/uploads/1/3/1/3/131379045/6624586.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://nebosevali.files.wordpress.com/2020/06/rosuxofas.pdfIn PDF document text
- https://tutinofokuke.files.wordpress.com/2020/07/89742777294.pdfIn PDF document text
- https://seleluf.files.wordpress.com/2020/07/62889064894.pdfIn PDF document text
- https://vakaximez.files.wordpress.com/2020/06/daxowuwutomimepore.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/matam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84770620138.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50537202024.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdfIn 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/1/0428/9835/8432/files/4077026649.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_off000065a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65A8 | 5612 bytes |
SHA-256: 03f5ee887969b3a55d7c68cef174cbcbdb006f497bf2e4802eaa98d8fac83fa2 |
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font_01_sfnt_off000078a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78A6 | 9764 bytes |
SHA-256: ea33b3a44d9911b279316b3594e8c7f2a5e3ea486da4f4aee3caf51cd3798731 |
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