MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS uploads. The presence of numerous PDF links on disposable hosting further supports a malicious intent, likely to distribute phishing content or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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 http://retrolondontees.com/userfiles/file/sazejefeveduvuneri.pdf In PDF document text
- http://goldendazzle.com/upload/quangtri/files/gogatomilufajopa.pdfIn PDF document text
- https://wildarium.com/ckfinder/userfiles/files/netubamibavit.pdfIn PDF document text
- https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/lunoxupud.pdfIn PDF document text
- http://creativeindustries.ru/uploads/userfiles/file/powud.pdfIn PDF document text
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613d3501dd3fa---nukusefesutubowavaviwewi.pdfIn PDF document text
- http://intertermo.nl/userfiles/file/88568221982.pdfIn PDF document text
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/887355f3e1cb90e0d1d6ebe4c635689e/molesonurosoka.pdfIn PDF document text
- http://immobilieninvestors.com/userfiles/file/xemakozemidog.pdfIn PDF document text
- http://xn----7sbqwxdbhblh2h.xn--p1ai/data/file/fifomufefokejiniju.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/59482961292.pdfIn PDF document text
- http://greentreeprep.com/cote_dor_import/admin/ckfinder/userfiles/files/63941649859.pdfIn PDF document text
- http://automsystem.com/UploadFile/file/20210911170156728.pdfIn PDF document text
- https://castilloexterior.es/ckfinder/userfiles/files/86116129175.pdfIn PDF document text
- http://weifong.tw/fckimages/file/xewexojabujagepefo.pdfIn PDF document text
- http://imailbox.nl/images/uploadedimages/file/buvuweberudizizik.pdfIn PDF document text
- http://orvosvalaszto.hu/uploads/files/15911890891.pdfIn PDF document text
- http://susasoft.com/upload/userfiles/files/44459427091.pdfIn PDF document text
- http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/fadopomabezupalip.pdfIn PDF document text
- https://spbmworld.com/anaeter_capital/siteadmin/userfiles/files/90140329278.pdfIn PDF document text
- https://whitepalacegrill.com/userfiles/dunalibaxomukesokase.pdfIn PDF document text
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130e11353a41---12234505485.pdfIn PDF document text
- http://hoteldazegliotorino.com/userfiles/files/fukirirewobumiku.pdfIn PDF document text
- https://privatecambodiatour.com/userfiles/file/wirenubuganogogor.pdfIn PDF document text
- http://chinatriage.com/ckfinder/userfiles/files/pasabexuwoxasefugaluni.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=friends+watch+online+with+russian+subtitlesPDF link annotation
- 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_off0000ca87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA87 | 17348 bytes |
SHA-256: d2cb1689b878305c2dbf5d547f6aec7b7e331605000082127b4c0f3c7484b28b |
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font_01_sfnt_off0000f72e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF72E | 10772 bytes |
SHA-256: e9e3a90829990c231c090093c20dd450cc8df159967b806140ca8a3f45d7a428 |
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font_02_sfnt_off00010fee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FEE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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