MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The document contains a high number of embedded links, many pointing to compromised WordPress sites, and a visual download button lure. The primary URL, https://infrive.ru/uplcv, suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://infrive.ru/uplcv?utm_term=acorn+superglide+120+wiring+diagram PDF link annotation
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087686c1248c---nawosazufeviwelosuwar.pdfIn PDF document text
- http://rencontres-icare.org/userfiles/file/1650571878.pdfIn PDF document text
- http://szao-spb.ru/images/news/file/53671111727.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608a6666306b8---vuzuzesetumif.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/rjo97mo0gja45dgdq2mmdcoght/58895241920.pdfIn PDF document text
- https://www.qlsny.com/wp-content/plugins/super-forms/uploads/php/files/cbba9b5aa3afaed1f852a17b944e192d/90635804029.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6107d4669f---71025599497.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f37c347055---vozomoxesuf.pdfIn PDF document text
- http://watdoenwevandaag.nl/upload/43863185634.pdfIn PDF document text
- http://graficaeformazione.it/userfiles/file/bepobuwaxurinilabelovo.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/2bf124327c3ad3596266352704ed2525/19734619806.pdfIn PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16073bf3b39742---pirowiram.pdfIn PDF document text
- http://hanhthien.net/uploads/file/63577431839.pdfIn PDF document text
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/553669dcbd3569784d6d0e64a26f9aa2/losewirivimuwolutegi.pdfIn PDF document text
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8506c4b52f---loniselojadivogonavof.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_off0000cfc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFC7 | 5800 bytes |
SHA-256: 40da48fd1b68d368446790b32038ac418a8a65c0a5ed2f75d8a4c0191dfe37be |
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font_01_sfnt_off0000e38a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE38A | 11000 bytes |
SHA-256: ac8105bf4403a5682a83318ac00e8b4fb536b57a523f96806642fc22465fa802 |
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