MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and external URIs that are flagged as malicious, specifically pointing to a phishing lure related to a 'macos catalina installer usb'. The presence of PDF_SEO_UTM_REDIRECTOR_LINK and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a sophisticated phishing attempt leveraging redirectors and potentially compromised websites to host malicious content. The ML classifier and ClamAV detection further support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.8150
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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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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://fecuq.co.za/XSRYdR1H?utm_term=macos+catalina+installer+usb PDF link annotation
- http://forsheda.se/admin/kcfinder/upload/files/49129335258.pdfIn PDF document text
- http://crislbd.com/public/admin/assets/ckeditor/kcfinder/upload/files/kobagenog.pdfIn PDF document text
- http://obasekiestates.com/UserFiles/file/jazawetiriwipokimitagisow.pdfIn PDF document text
- http://lexnovum.pl/js/kcfinder/upload/files/jegapavi.pdfIn PDF document text
- https://pmeds.us/userfiles/file/vumiwu.pdfIn PDF document text
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132d0b07af81---60394057451.pdfIn PDF document text
- https://trimix.bg/UserFiles/File/xakisetarelanid.pdfIn PDF document text
- https://yantrasearch.com/ckfinder/userfiles/files/tolomoxafavatilejuvufixan.pdfIn PDF document text
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1619dd1a50a1f2---didisudagimelezotemuk.pdfIn PDF document text
- http://bunny888.com/ckfinder/userfiles/files/xuxafuwexefelexugomin.pdfIn PDF document text
- https://ibextrail.com/editor-images/34688922816.pdfIn PDF document text
- http://kapalishakti.com/ckfinder/userfiles/files/7367736388.pdfIn PDF document text
- https://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/93e645938687c14382f179c5ee5fea29/42127470913.pdfIn PDF document text
- http://ameshamagazine.com/js/upload/files/45484241767.pdfIn PDF document text
- http://unitedpestmanagement.com/userfiles/file/lewujofonaxifegem.pdfIn PDF document text
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e50e117bf11---70077478364.pdfIn PDF document text
- http://jncs.kr/page_data/file/20211129200234.pdfIn PDF document text
- https://gianlucabruno.it/dati/upload/file/9466958894.pdfIn PDF document text
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/161512896ec016---65065044324.pdfIn PDF document text
- https://5703n1n6999-6a55.com/contents/files/31524011623.pdfIn PDF document text
- http://www.ujepites.hu/userfiles/files/xududojixuzowuwika.pdfIn PDF document text
- http://www.slappedtogether.com/editoruploadfiles/file/31503234285.pdfIn PDF document text
- http://teleprasowanie.pl/kcfinder/upload/files/3831761576.pdfIn PDF document text
- http://erdelyironkbutor.hu/admin/kcfinder/upload/files/71048047148.pdfIn PDF document text
- https://sportsht.com/userfiles/file/woxuv.pdfIn PDF document text
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16186d847cd8c4---nimenelog.pdfIn PDF document text
- http://ramadin.com/userfiles/file/kebetezonurutafeja.pdfIn PDF document text
- http://marketypik.pl/zdjecia/fck/file/nusotowuxafivedis.pdfIn PDF document text
- http://bunny888.com/ckfinder/userfiles/files/korisavitux.pdfIn PDF document text
- http://geredekombiservisi.com/userfiles/file/sapozamasiwok.pdfIn PDF document text
- http://skyparadisecoffin.com/images/media/files/gonexazefelovu.pdfIn PDF document text
- http://amis-simserhof.fr/kcfinder/upload/files/kekifuduwopogopibitoteju.pdfIn PDF document text
- http://mentaplywood.com/images_upload/files/58133213883.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_off0002adaf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2ADAF | 10456 bytes |
SHA-256: 878c598485e608844120d4c00b140756e09eac93c61b8dfdebbfda457e0459d5 |
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font_01_sfnt_off0002c58b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2C58B | 17480 bytes |
SHA-256: e0f083bc3d00f0356c258275e9c8d362ac47e93b305c814c46889d47c0c7cbb8 |
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font_02_sfnt_off0002f2f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2F2F3 | 16560 bytes |
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9 |
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