MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains numerous links to compromised websites, likely as part of a link farm to boost SEO for malicious content. The document body, though heavily obfuscated, appears to be a lure for downloading a specific PDF book. The presence of external URIs and compromised CMS upload links indicates a phishing or malicious content distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://pistant.ru/uplcv?utm_term=the+language+of+composition+2nd+edition+free+pdf PDF link annotation
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1606e3441ac507---lutugezadazerivufikow.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0aea4a9168---21244860464.pdfIn PDF document text
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/4797e3992442fefc6cd77121ac892089/dozemijediwuvi.pdfIn PDF document text
- http://myflora888.com/ck_files/files/54740276510.pdfIn PDF document text
- http://baikalspring.ru/ckfinder/userfiles/files/52573271304.pdfIn PDF document text
- http://bfr-bialapodlaska.pl/userfiles/file/24288581359.pdfIn PDF document text
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/2ab08d5118cd7d90ba0532e1aab0ab68/98932158778.pdfIn PDF document text
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/ced204ec87e1c4c337e2c66890eb1371/wufat.pdfIn PDF document text
- https://wegofa.com/userfiles/file/19564787090.pdfIn PDF document text
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/2vs2m4itbh5k7dh0fvs4invdid/69269395229.pdfIn PDF document text
- http://humanitool.ru/userfiles/file/90845361746.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/b6eca77b041142b6e0a0c65e9079fb4b/59928298339.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160829d9311d89---tudatizetirinamato.pdfIn PDF document text
- https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/3e9d741ff049aac9e27e1c8a7d1355c0/5064118229.pdfIn PDF document text
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/8qb7564o6jthj5lt3pa0m8j4h0/susolibeneb.pdfIn PDF document text
- https://kvkumariajnkvv.org/singhania/downloads/file/gokapelawolilulu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c62c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC62C | 5652 bytes |
SHA-256: 1194673558cf94d7b7860c1c744e0e1f13c797c972a3f2f7d57eeb602970790d |
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font_01_sfnt_off0000d93d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD93D | 10668 bytes |
SHA-256: a8030286d2da8375ccfc0acd7364cbf26af5a1835122ca66dbf2e88dd56fd4bd |
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