MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to compromised CMS upload storage or disposable hosting, indicative of a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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://irlanc.ru/uplcv?utm_term=play+android+app+on+pc PDF link annotation
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/43f8a8f7ae1a2aa4861a8fd5e27a285c/dibinofiwuzi.pdfIn PDF document text
- http://pho32shabu.com/uploads/files/24879203305.pdfIn PDF document text
- http://farmandari-sarvestan.ir/images/news/files/tenejimawexariwavavo.pdfIn PDF document text
- https://lemarko.com/userfiles/file/raxijanuvale.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc58d346c3---43177034821.pdfIn PDF document text
- https://whiteplacard.com/UserFiles/file/24709784159.pdfIn PDF document text
- http://gro-felix.si/uploads/wewojasowanita.pdfIn PDF document text
- http://capri.lt/userfiles/files/96786794608.pdfIn PDF document text
- http://myphammonly.com/luutru/files/fexupibozeniw.pdfIn PDF document text
- http://sowiik.pl/userfiles/file/8492606768.pdfIn PDF document text
- https://loffoxfitness.mvwebsolution.com/userfiles/files/vikevewixom.pdfIn PDF document text
- http://maryalo.com/userData/board/file/zepibetulemudokogevugit.pdfIn PDF document text
- http://ecohouse-lab.com/userfiles/file/23592735033.pdfIn PDF document text
- https://femagnet.com/upload/edu/article/file/terifinow.pdfIn PDF document text
- http://saharun.org/uploads/ckfinder/userfiles/files/buzexes.pdfIn PDF document text
- http://etoprosto.ru/ckfinder/userfiles/files/rujirovej.pdfIn PDF document text
- http://jsqnchem.com/upload/files/nugilenonusizobolura.pdfIn PDF document text
- http://sportsgarten.com/editorData/file/luvodajuw.pdfIn PDF document text
- http://girc.ncue.edu.tw/ckfinder/ckfiles/files/tususa.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161431e28c2c18---28241052074.pdfIn PDF document text
- https://naucharts.com/ckfinder/userfiles/files/pojivizejave.pdfIn PDF document text
- https://bedandbreakfastholten.nl/userfiles/file/nefedaf.pdfIn PDF document text
- http://vizugy.hu/uploads/files/files/silemudopiwo.pdfIn PDF document text
- https://tomas-music.com/contents/files/bezujigexazojorazugutenab.pdfIn PDF document text
- https://jurvamartin.com/userfiles/file/89106557224.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f537.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF537 | 18040 bytes |
SHA-256: 6568ab0d7a6f76aa451a5ce134df454245e626f50885c276a7a068dcf18815e1 |
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font_01_sfnt_off000123c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123C9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013be0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BE0 | 10224 bytes |
SHA-256: e9d5a18f1d2a9e805639cad558bb843458341287f167e6ec65877696d0e38d82 |
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