MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many of which point to a redirector URL. The ML classifier strongly indicates maliciousness. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic suggest an attempt to create a link farm for SEO manipulation or to distribute malicious content. The primary malicious URL identified is traffset.ru.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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External URI info PDF_URIPDF contains an external URL action
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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://traffset.ru/123?utm_term=las+cruces+high+school+schedule PDF link annotation
- https://cdn-cms.f-static.net/uploads/4370541/normal_5fa4a3a98216c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378834/normal_5f98eb3d21807.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426551/normal_5f99b327a18bb.pdfIn PDF document text
- https://dokakida.weebly.com/uploads/1/3/1/3/131380589/8130601.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387419/normal_5f8fdb2df0477.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368984/normal_5f912c7726aed.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/4c51e981-39ee-414f-8815-0740c523577b/90371680858.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/358907cf-2e6f-4bd6-893a-28ab9a6d06ad/35545233060.pdfIn PDF document text
- https://s3.amazonaws.com/vixuwogetiv/jujedimefumepotusi.pdfIn PDF document text
- https://s3.amazonaws.com/pozokimepe/9993104322.pdfIn PDF document text
- https://s3.amazonaws.com/dedinavesute/the_anchor_bible_dictionary.pdfIn PDF document text
- https://s3.amazonaws.com/bifamomove/horizontal_leg_press_muscles_worked.pdfIn PDF document text
- https://s3.amazonaws.com/rogugagatuf/roadrunner_email_support_spectrum.pdfIn PDF document text
- https://s3.amazonaws.com/ravuxudibure/nogorowelugotirago.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_off0000c9bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9BC | 5144 bytes |
SHA-256: 9c274e3779f742b35bf5b4289d75ee900bff9263d7204834191e7edf0c728a51 |
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font_01_sfnt_off0000db32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB32 | 11376 bytes |
SHA-256: 1feeaeca12801a71af4c441ee9f18d1345193dd12f07a3a4696dcd02cca5cb22 |
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