MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised WordPress sites, which in turn host other PDF files. This pattern suggests a link farm designed to obscure the ultimate destination, likely a phishing page or malware download. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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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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://cructi.ru/uplcv?utm_term=how+to+find+resultant+force+on+an+inclined+plane
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/oecs2llko9bdublefdjnpd6olk/6055406595.pdf
- https://qian-ho.com/upfiles/editor/files/3391757548.pdf
- http://nousgarage.com/userfiles/file/fenibenijepifubelimuzul.pdf
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607341aa619f0---37501754374.pdf
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160dfb5a689081---36794513163.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffbc793a35---7856887971.pdf
- https://guruamardaspublicschool.com/userfiles/files/kuwijofizore.pdf
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087d5c105c9d---9122495573.pdf
- http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078051f2a47c---21622880970.pdf
- https://svingenieria.cl/userfiles/file/97020373409.pdf
- https://kaimano.it/file/kutexakulef.pdf
- http://cokhihoangvinh.com/uploads/userfiles/file/janogalirefeb.pdf
- https://belhasasecurity.com/userfiles/file/poxidug.pdf
- https://e-uchebnici.com/img/file/pawuvi.pdf
- http://charivne.info/images/file/luvakevopetoratuj.pdf
- http://akvari-um.ru/userfiles/file/78246071395.pdf
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160fe72cd67337---35951957582.pdf
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160744f3517355---70605209272.pdf
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/1127cb4e5078e85edd811a1f6fb68665/36338225528.pdf
- https://luyenthitoeic.info/userfiles/file/21717508655.pdf
- http://farmaciacogliate.it/userfiles/files/rixoxigajajilirat.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1eb6bcf17---zejopexipuperufebinoveni.pdf
- https://brothers-music.com/ckfinder/userfiles/files/39213068986.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011c81.binc7716eb7e357a0120a994103875b650fb15f5b0a7047d072d35e5f1efd477e6f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C81 | 10792 bytes |
font_01_sfnt_off0001357b.bin80d340ccbbed933c04e01f52ec24e81a7c75cbb58d2bc47905d7632a4103ba58 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1357B | 18148 bytes |
font_02_sfnt_off000165b3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x165B3 | 16792 bytes |
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