MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded URLs, indicating a link farm or SEO manipulation strategy to distribute malicious content. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a redirector URL, and PDF_SEO_LINK_FARM highlights the mass external link structure. The ML classifier also strongly indicated maliciousness. No scripts were extracted from this sample.
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=activity%20series%20pdf In PDF document text
- http://files.hhsarthistory.com/uploads/1/3/1/4/131482808/dafukisa.pdfIn PDF document text
- http://files.villagesatlynxcreek.com/uploads/1/3/1/3/131378816/5f3ccf81c.pdfIn PDF document text
- http://files.rta-ot.com/uploads/1/3/1/0/131070895/8522646.pdfIn PDF document text
- http://files.kaimodeling.info/uploads/1/3/1/1/131163723/2097084.pdfIn PDF document text
- http://files.starmembership.org/uploads/1/3/0/8/130814120/wemolewuziko_vijifaro.pdfIn PDF document text
- http://files.fhcamd.org/uploads/1/3/1/6/131637034/5932877.pdfIn PDF document text
- http://files.jamesmatthewwilson.com/uploads/1/3/1/6/131637057/d1e23bb.pdfIn PDF document text
- http://files.marriedmarks.com/uploads/1/3/2/8/132816158/wawezanuz-titun-resuta-ponupax.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://mukeninesev.files.wordpress.com/2020/06/79510055737.pdfIn PDF document text
- https://jeluzonodifi.files.wordpress.com/2020/07/wodotumogapez.pdfIn PDF document text
- https://kadawajoxezo.files.wordpress.com/2020/06/jupijaxemalo.pdfIn PDF document text
- https://tapuxagad.files.wordpress.com/2020/07/31615438393.pdfIn PDF document text
- https://nomutodiri.files.wordpress.com/2020/06/27292881347.pdfIn PDF document text
- https://nudokux.files.wordpress.com/2020/06/venelavutapidofepomenav.pdfIn PDF document text
- https://mijukuwojaw.files.wordpress.com/2020/06/gumuposum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lavijado.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kubogofire.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32177526878.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/14981909947.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56346524494.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xubeke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojedisubeweful.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_off000061a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61A7 | 4632 bytes |
SHA-256: 654911ffcd79efd9cf74a09f699dc244380c7a7fd0a7bb0baf7eb88b434904ea |
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font_01_sfnt_off00007184.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7184 | 9964 bytes |
SHA-256: e9c229d3353a5f3a3c9a538b3a814ca33feae3d28fd3bbea92197b23c56a4032 |
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