MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many pointing to what appears to be a link farm designed for SEO manipulation, with one prominent link leading to a redirector. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded URL and the heuristic 'PDF_SEO_LINK_FARM' suggest the document's primary purpose is to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://pelibifir.ru/strik?utm_term=how+to+change+a+braun+ear+thermometer+from+f+to+c PDF link annotation
- http://surozofawowidom.scienceontheweb.net/bank_exam_syllabus_2020_download.pdfIn PDF document text
- http://zofugef.mypressonline.com/62976160272.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://71b4061d-0fbe-47a8-a671-08758978b022.filesusr.com/ugd/0216f2_448ec19d945f459dab527cb4b18c75cc.pdf?index=trueIn PDF document text
- https://2c5a832e-93c4-4ab0-bef0-969ef348d747.filesusr.com/ugd/cc5daa_ec6089e2e95f4a25a6448bea8ec23543.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bupaxomu/bitwise_asset_management_report.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8e366ef7-7c3b-44df-87c1-7234ee0c76a8/xedumevitotip.pdfIn PDF document text
- https://s3.amazonaws.com/donukadizolin/top_avengers_game_for_android.pdfIn PDF document text
- https://d62ff7d9-aefc-4ab8-8cdf-af38868aea16.filesusr.com/ugd/54b9a1_afd8898f87074862a6482fe6213947d4.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wixatax/ridgid_planer_r4331_gearbox.pdfIn PDF document text
- https://s3.amazonaws.com/nedijowewoded/crosman_760_pumpmaster_seal_kit.pdfIn PDF document text
- https://f6180879-d31b-499c-8e42-fead7842c491.filesusr.com/ugd/007227_19aba5f7abcb4cbbb28b88b07761efbd.pdf?index=trueIn PDF document text
- https://24451074-f53b-4065-993c-779ba3957988.filesusr.com/ugd/0ae25f_349dd63e53e541f397ab972df3c801aa.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fekaduvopigab/7th_grade_civil_servant_sub_indo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f00d3f3b-df91-4ede-8914-8b04b7b26c78/84975033682.pdfIn PDF document text
- https://s3.amazonaws.com/rozebofukixus/36329332235.pdfIn PDF document text
- https://s3.amazonaws.com/sitozi/wedding_pack_ii_videohive_free.pdfIn PDF document text
- https://ea29520f-fefa-4c12-ab21-0e0839e82572.filesusr.com/ugd/5d2047_5c1b0940451e4692bbf08b75e318d15f.pdf?index=trueIn PDF document text
- https://07e0a16e-b77d-475b-b724-88bbaedb347c.filesusr.com/ugd/8e9e2f_b789b645c6ab4a78b0d0f9432bcd0421.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/jenisozazewubo/woman_hollering_creek_audiobook_free.pdfIn PDF document text
- https://2a983b51-2e13-4971-8c1f-a5bca3ab4353.filesusr.com/ugd/e1a791_a3922695d54547a29e96a15b434e386e.pdf?index=trueIn PDF document text
- https://c63ca81c-6df4-4ec3-bc2e-8508f29a6879.filesusr.com/ugd/d48fe3_0338da46ced44ec697f3542c31efd729.pdf?index=trueIn 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_off0000d947.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD947 | 5276 bytes |
SHA-256: 043d45b67318c247ed0e1d9fb436d2f07a6a03b3164103798bc85dfe4e9b3798 |
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font_01_sfnt_off0000eb25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB25 | 10920 bytes |
SHA-256: 31ce86035e58fe10e7ddddacbf3cb257e7e3cc1e8f467d7d586d24e2a732fabc |
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