MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF contains a large number of links, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to distribute malicious content. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classifiers also flagged it as malicious. The embedded URLs and the heuristic firings strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://schachverein-marchhoefe.ch/fcsr/news/upload/file/pimowegogoxepatewi.pdf
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/e8a0e6aaa9050cb46711a1d34899bc24/78454166491.pdf
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/a1f8a18145462fe874cd35eb879a9c2e/25694598715.pdf
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/d9e0efafaee3487b5db539409c65d86b/mepumeviw.pdf
- http://vtaky.sk/media/file/rixum.pdf
- http://scvumaichiramen.com/uploads/files/84691397797.pdf
- https://chameleoncoupons.com/adgprocessing/uploads/files/nenow.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/ce415af76f9a59e09bfcf6a09fba96b0/39076493000.pdf
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/ma7338466jcsavk490fgfq04u1/38139851931.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160affd490e957---dulunokebafolenuj.pdf
- http://wellnesszeewolde.nl/site/data/ws/files/11230633406.pdf
- https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607222cf8242a---66658032046.pdf
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d443e416285---46989531245.pdf
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f030f12f84---52101074434.pdf
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16070d6bde11ba---pupemefurobiwofux.pdf
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096a459eb4f4---pinonupapumusaso.pdf
- http://agnieszkapawlik.com/userfiles/file/saxanojup.pdf
- http://ctkupavna.ru/upload/file/nimavejetomovelemi.pdf
- https://okazionche.com/files/72513869765.pdf
- https://www.adoz.cz/ckfinder/userfiles/files/77629100888.pdf
- http://vandientuchinhhang.com/upload/files/2341927911.pdf
- https://matras-matrasych96.ru/admin/ckfinder/userfiles/files/36611668773.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc2e61dc24---59953753654.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=calendario+2020+mexico+pdf+escolar
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d231.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD231 | 16792 bytes |
font_01_sfnt_off0000ea43.bin5f495ec6125c7def1616a4a9f79b44d8586be227e49549b8bdfe5684d192a34f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA43 | 18068 bytes |
font_02_sfnt_off000118e5.bin75f2d85585e254c0f39682468ff86096dc2be63945037b82f33a37b5eabd7faa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118E5 | 11056 bytes |
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