MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external websites, many of which are hosted on compromised CMS uploads or disposable domains. The embedded URLs suggest a phishing or SEO manipulation campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://oniceh.ru/uplcv?utm_term=frp+mechanical+properties+pdf PDF link annotation
- https://syntellect.ru/Repository/file/1150214886.pdfIn PDF document text
- http://innotack.com/userfiles/files/72817840750.pdfIn PDF document text
- https://xn--80aggmy8c6c.net/UserFiles/File/72126217995.pdfIn PDF document text
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acd4524d747---77762148911.pdfIn PDF document text
- http://abogadosaguilar.com/ckfinder/userfiles/files/51015266512.pdfIn PDF document text
- http://xn-----6kcaheblih5ab0a6afqbzoqe.xn--p1ai/ckfinder/userfiles/files/2225730625.pdfIn PDF document text
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/6c0a2d42b9e4bd53849f33256e19ffa4/rabatuwuvodisefumuxet.pdfIn PDF document text
- http://hicoweld.com/shop/fck_file/file/suwunegi.pdfIn PDF document text
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e91c4d8a280---sozumonagesizeji.pdfIn PDF document text
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/16073723f39329---87128019325.pdfIn PDF document text
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4202345f8---lisakodab.pdfIn PDF document text
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6bf59327e7---fowojobesano.pdfIn PDF document text
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160bdac82a9ccb---92558507886.pdfIn PDF document text
- http://school15-tyumen.ru/f/rinivozalux.pdfIn PDF document text
- https://vadihosting.com/calisma2/files/uploads/24751368146.pdfIn PDF document text
- https://yocarbroker.com/upload/ckfinder/files/popuposasexogapup.pdfIn PDF document text
- https://inverpalmas.site/aym_image/files/51504751777.pdfIn PDF document text
- http://sahrugs.com/userfiles/file/45402306351.pdfIn PDF document text
- http://vitali-schulz-eiskunstlaufen.de/userfiles/files/83123701027.pdfIn PDF document text
- https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/6uipi1p76so81e4a4mb7098qh1/sakezixa.pdfIn PDF document text
- http://tunapvietnam.thietbiotoviet.com/Images_upload/files/50657239978.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1611dd811d4245---pumimo.pdfIn PDF document text
- http://www.annaleehuber.com/content_files/file/suxebufafuvojabofudak.pdfIn PDF document text
- http://blatt-gruen.ch/files/6793068958.pdfIn PDF document text
- http://teenmag.cz/userfiles/file/somegufaguvogiv.pdfIn PDF document text
- https://gitedu.in/ckfinder/userfiles/files/musuvagigifidegopol.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_off0000e11e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE11E | 17512 bytes |
SHA-256: bf8757a0c167f070af2498ebfff3f68d5a637a3cc3c009af3c38f81f39190e08 |
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font_01_sfnt_off00010e36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E36 | 10864 bytes |
SHA-256: 2ce72634642081051069aa4fed1117de4248e2c52ff2ce600fe97435b44696eb |
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font_02_sfnt_off0001270e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1270E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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