MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a mass of external links designed to appear as a link farm for various PDF documents, including "asset allocation theory pdf" and "acrobat reader professional free download". This technique is commonly used in phishing and SEO spam campaigns to drive traffic to malicious sites. The presence of multiple external links and the ML classifier's high confidence score indicate a malicious intent, likely to trick users into downloading malware or visiting phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://leonvi.ru/award?keyword=asset+allocation+theory+pdf PDF link annotation
- https://cdn.sqhk.co/rozesivotix/gjiijlC/lenovo_premier_support_phone_number.pdfIn PDF document text
- https://cdn.sqhk.co/jesarijufe/heEeLgH/black_square_painting_sold_for.pdfIn PDF document text
- http://fobativ.mywebcommunity.org/46111781800.pdfIn PDF document text
- https://cdn.sqhk.co/nogorodizet/XgeLiit/playstation_5_pre_order_price.pdfIn PDF document text
- http://suzamakulamuj.mypressonline.com/zadelebekuduvor.pdfIn PDF document text
- https://cdn.sqhk.co/miwavilusaji/iigjnG9/learn_thai_language_listen_speak_read_process.pdfIn PDF document text
- https://cdn.sqhk.co/laruxibut/jdofkhc/tufopozoviwexibuk.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://biwosagamivi.myartsonline.com/acrobat_reader_6_professional_free_download.pdfIn PDF document text
- https://s3.amazonaws.com/sobaketemu/28725036797.pdfIn PDF document text
- http://fazovalekotevo.onlinewebshop.net/how_to_calculate_density_given_pressure_and_temperature.pdfIn PDF document text
- https://17851959-1482-4b49-8222-7b7b0c628459.filesusr.com/ugd/3cb679_389e51bb56dd42ac8684161761afc130.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wujodibu/motabafukon.pdfIn PDF document text
- https://2ffa788b-df2f-461f-b9c5-573bec542745.filesusr.com/ugd/374ce0_3f0ff26eb4924bc885d6dd2b090461ce.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/963db896-5e14-458f-a7cd-f3e35364d546/98768563225.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e57b3aa5-1866-40b7-a1c0-809b4dbe05cc/zidopakipuwu.pdfIn PDF document text
- https://6d428a25-da86-44fa-8f13-5b0f09742281.filesusr.com/ugd/3649d2_77ceff3d5331430ea316bfbf4c167276.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kozewuposoridil/47588755490.pdfIn PDF document text
- https://ec451167-49e0-489e-a150-d7dc0ecf9264.filesusr.com/ugd/fe0276_e137bc73b7c54c97a63a0a7bf8985640.pdf?index=trueIn PDF document text
- https://235be7ff-9b22-41de-91df-7a9e5ced5199.filesusr.com/ugd/4fa465_c720d83daee542178cc3ebb669cad46a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/lumixi/tixesewuz.pdfIn PDF document text
- https://s3.amazonaws.com/wuvepilamamuse/4039462759.pdfIn PDF document text
- https://s3.amazonaws.com/jesidofefe/85850111126.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f303d7e3-2e58-478f-a2e2-8752b24a8149/how_to_add_multiple_location_on_google_map_in_my_website.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4fab0a4e-cc7d-4846-829d-0345fe702a0a/61858881518.pdfIn PDF document text
- https://s3.amazonaws.com/taguxif/fevoke.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_off000112b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112B2 | 5336 bytes |
SHA-256: 9622b0728c6c4b3ddeee966ea106fce557e06283527344575ad095eb343aa663 |
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font_01_sfnt_off000124dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124DC | 11144 bytes |
SHA-256: 3eafbf9282a63b8dc4f309e122cc06ef008b21c20f1f9ca83dd80b58faece9bd |
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