MALICIOUS
206
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file exhibits malicious behavior through multiple high-severity heuristic firings, including PDF_RANDOM_URL_LINK and PDF_SEO_UTM_REDIRECTOR_LINK. The presence of numerous external URIs, many pointing to compromised CMS upload storage, indicates an attempt to redirect users to malicious content. The ML classifier and ClamAV detection further support its malicious nature, suggesting it's a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9767
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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=beauty+supply+on+87th+and+the+dan+ryan PDF link annotation
- http://fitnessklub-impuls.pl/uploads/assets/file/59528486634.pdfIn PDF document text
- https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/barvennvib2muc0nutgshq1bgu/bugobibudaku.pdfIn PDF document text
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/1607bab1d14b05---joluxikovukugovo.pdfIn PDF document text
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/o8pf2a4775sjoatgsmbvokcrho/90657880335.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/9dc0c785bf5523362009a6ed9a25d627/9715861994.pdfIn PDF document text
- http://yer-krasnodar.ru/ckfinder/userfiles/files/dugovol.pdfIn PDF document text
- https://tvsporedi.si/vsebina/puzunekosebefaninejev.pdfIn PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/27uuh3pjgrjmoht9cdtciu8ol3/8063714482.pdfIn PDF document text
- http://incucinaconalberta.com/userfiles/files/131843617.pdfIn PDF document text
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096c7a659db2---39283431463.pdfIn PDF document text
- http://naucseto.cz/storage/kikifoguj.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/8799a60bb45258a6858da22048ba75c4/36002462450.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c81acce153---zonubenixibepififugizijej.pdfIn PDF document text
- http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/tizagujobavo.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1e05c65a0a---27730558630.pdfIn PDF document text
- http://deurenhanger.nl/userfiles/file/zosewufataturomoximopo.pdfIn PDF document text
- https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/4aae33a0d6f39bf43a72c21e786cc712/32265012537.pdfIn PDF document text
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16098912caee8d---dewidabikogemiju.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a62ccfab290---71781391238.pdfIn PDF document text
- http://pnmanagementsolutions.in/uploads/70306106353.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/flr77kl26jgc83qpchkd79kmg4/lapunetedudasujekesuti.pdfIn PDF document text
- http://doggystylzgrooming.com/admin/photos/file/85850646459.pdfIn PDF document text
- https://sarujiovalente.com/wp-content/plugins/super-forms/uploads/php/files/ea2pa8in7qcst5p81t0jt5pd6o/5893822533.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cf5b1c8d485---rutezat.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_off00044792.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x44792 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00045fa4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x45FA4 | 17552 bytes |
SHA-256: 4fe3c8deff0bf7fe66664d388c062c864c9ff20256c06ccc95804dc9590810f9 |
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font_02_sfnt_off00048da7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x48DA7 | 10924 bytes |
SHA-256: 655bf0c53e1a7b57d0fbe6bd9aa7e620637dfae23ef57dd19410119056474d1a |
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