MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as a phishing trojan. It contains embedded JavaScript and numerous external URIs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The embedded JavaScript likely facilitates the redirection or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=porter%27s+five+forces+model+journal+pdf PDF link annotation
- http://tomasmrazek.cz/userfiles/file/2852791020.pdfIn PDF document text
- http://mentor-tutor.com/newGroserLikeProject/uploads/files/40087900931.pdfIn PDF document text
- http://masonhn.com/d/files/ginapuxesozabij.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a02c24ccea---23585620404.pdfIn PDF document text
- http://daeryuhealthcare.com/ckupload/files/kefetivujitufijofimugugid.pdfIn PDF document text
- http://metabolizmusonline.hu/images/upload/file/xuridabanepitarakave.pdfIn PDF document text
- http://bayanairag.com/uploads/userfiles/files/gulejokaxumidurovuxopepi.pdfIn PDF document text
- http://tw-jia.com/uploads/files/202109091753373370.pdfIn PDF document text
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138725ea7b3f---71650324777.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/93df576e57e7dbda35d7a5d85126e444/lejigejirutevulis.pdfIn PDF document text
- http://dachastyle.com/userfiles/file/52844928173.pdfIn PDF document text
- http://jolanyee.com/upload/files/202109041603225342.pdfIn PDF document text
- https://sandp-engineering.com/ckfinder/userfiles/files/16887831708.pdfIn PDF document text
- http://cautrucpalang.vn/webroot/img/files/57091501929.pdfIn PDF document text
- http://acunambalaj.com/adenoto/upload/files/rutepovez.pdfIn PDF document text
- https://imagebrandstudio.com/userfiles/file/sawojigoj.pdfIn PDF document text
- http://spokoino.ru/i/upload/files/22001640482.pdfIn PDF document text
- http://regalmotors-jp.com/js/upload/files/jadidorituteniwolewenebir.pdfIn PDF document text
- https://madhubanindiancuisine.com/nbloom/fckuploads/file/kenekixuxekobexef.pdfIn PDF document text
- http://laserinnsbruck.com/static/wibemevidenumenunuje.pdfIn PDF document text
- http://myshopgroup.com/userfiles/files/8384727828.pdfIn PDF document text
- http://wimborst-ceramics.nl/public/view/upload/fckeditor_images/file/tuwipoluwirosesapinexajan.pdfIn PDF document text
- http://gr-chem.com/upload/files/65871503527.pdfIn PDF document text
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/ffe3230cf762be5050dc82adff278f7d/51510003884.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_off0000b182.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB182 | 15360 bytes |
SHA-256: c45dd6cd3cbdb253b7db91d3fc62353316ce8b64c1c0e5311e371d628a94d73f |
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font_01_sfnt_off0000d7b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7B8 | 11112 bytes |
SHA-256: c094f8ff6f9f844656c2f23e7740f47b0ff9becd4dc4eed117b836eead3876c1 |
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font_02_sfnt_off0000f1b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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