MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The file is a PDF that contains a link farm pointing to other PDF files hosted on compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as phishing or a trojan. The presence of multiple compromised domains and a link farm structure suggests a campaign to distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613108a048fc9---boxafof.pdf In PDF document text
- https://epagneuls-bretons.fr/caningest/images/file/novaj.pdfIn PDF document text
- https://euforbiabulgaria.gbinvest.net/uploads/pages/files/jevijetiravikisexed.pdfIn PDF document text
- http://xenangheli.vn/public/files/78510892020.pdfIn PDF document text
- https://hydratrend.com/application/third_party/ckfinder/userfiles/files/fepovovirugawanezej.pdfIn PDF document text
- http://allier-genealogie.org/File:/38024338330.pdfIn PDF document text
- http://ckm-machinery.com/userfiles/files/xuwesemitoserinonesu.pdfIn PDF document text
- https://thibiditrading.com/public/userupload/files/vasovugutofumarebugun.pdfIn PDF document text
- https://bulendengin.com/upload/ckfinder/files/88973678480.pdfIn PDF document text
- http://jfac.kr/ckfinder/userfiles/files/80915234375.pdfIn PDF document text
- https://gruntbudowa.pl/files/file/70928405449.pdfIn PDF document text
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/6b64b7246d713adc481c0d289caa4af9/82289290403.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/c3e43868cd21e42e386035c12027bb30/zofabatanakafimo.pdfIn PDF document text
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16132b1aa261dd---fexujo.pdfIn PDF document text
- https://eurochen.com/UpFiles/WebEditorFiles/file/72131509138.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/th9doo2gl39rmoo6fper2o5h52/vadobasosavuxaxapomobit.pdfIn PDF document text
- http://vino-charlie.cz/userfiles/file/pedotutisegol.pdfIn PDF document text
- http://xinyuemu.net/assets/202109/files/20210907060010286211.pdfIn PDF document text
- https://ceccarmehedinti.ro/userfiles/file/sokukiraxamoso.pdfIn PDF document text
- http://photo-preiss.com/upload_files/files/zopuxobumufaguvub.pdfIn PDF document text
- http://klaaswester.nl/img/file/vefugibovusabutekivafek.pdfIn PDF document text
- https://premiersuli.hu/files/files/82094806985.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=brain+waves+pro+apkPDF 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_off0000d50d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD50D | 18728 bytes |
SHA-256: 5b748ccbd797049e0ff699365e197db6dda1d76d6f4a636bea587695df92fe5e |
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font_01_sfnt_off00010648.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10648 | 10400 bytes |
SHA-256: ee45cd181f27ea03f9c80727c4143e23bf39eafeba7539547842bf186d5c4a44 |
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font_02_sfnt_off00011e04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E04 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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