MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF was flagged by multiple heuristics as malicious, including ClamAV and an ML classifier. It contains a link farm with numerous external PDF links, many pointing to unknown or potentially malicious domains. One prominent URL, 'https://mezovuduw.ru/123?utm_term=modal+auxiliary+verbs+exercise+pdf', appears to be an SEO redirector designed to lure users into downloading further malicious content. The PDF's structure and the presence of external links suggest it's part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://mezovuduw.ru/123?utm_term=modal+auxiliary+verbs+exercise+pdf PDF link annotation
- https://dotanivim.weebly.com/uploads/1/3/4/7/134705276/rezubemurovujufib.pdfIn PDF document text
- https://gisoroweri.weebly.com/uploads/1/3/4/8/134893792/3360966.pdfIn PDF document text
- https://vuguzakinizole.weebly.com/uploads/1/3/4/4/134493236/5540164db9a809e.pdfIn PDF document text
- https://valazasabo.weebly.com/uploads/1/3/1/3/131398294/541789.pdfIn PDF document text
- https://vokarojunez.weebly.com/uploads/1/3/2/6/132696330/pefawalijuduza_guduroki_lefubupef.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/lekelepowo/formal_definition_of_blazing.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/befa62fa-cbab-47aa-bf06-a33f198fb90b/what_do_you_mean_by_computer_vision.pdfIn PDF document text
- https://s3.amazonaws.com/wozoxub/rhetorical_devices_word_meaning.pdfIn PDF document text
- https://s3.amazonaws.com/bisegilupuf/36002163974.pdfIn PDF document text
- https://b9e1b105-38e0-4bbf-baad-90de1e2021e1.filesusr.com/ugd/432b07_3a77a99c3f374561bd7980caca738d59.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wogikokuzotaxa/26433908304.pdfIn PDF document text
- https://s3.amazonaws.com/tojazudibumogab/inscribed_angles_in_circles_partner_worksheet_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3188f33d-41a0-42e2-99eb-a4b94c0cf143/vudajagopugabuva.pdfIn PDF document text
- https://s3.amazonaws.com/tozaduliwubega/assentamentos_informais_em_mocambique.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/df8bbbfb-3d36-4c18-ad25-70e3922a26f5/printable_frys_first_100_sight_words_flash_cards.pdfIn PDF document text
- https://0502d5d0-a0f5-47b8-bc1c-644c46e4e431.filesusr.com/ugd/6cabbb_275f6b9707a842ebb0bfad0d2d0d5477.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/gonafoziguwewe/lekalaviz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ddbe4058-7107-4f7c-8174-3dda0ee391f4/how_long_to_dry_jerky_in_nesco_dehydrator.pdfIn PDF document text
- https://s3.amazonaws.com/jotizifime/zinonujilas.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e448.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE448 | 5220 bytes |
SHA-256: 5f33c5d7d3d291d1d94ed75bd5fc025a1d904590dedcf0917327738ac5706213 |
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font_01_sfnt_off0000f62a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF62A | 10848 bytes |
SHA-256: dce124dec9639114c23fff290acf3634eb67e4ba0288109e929a508608b335ab |
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font_02_sfnt_off00011b2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B2E | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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