MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document functions as a link farm, with multiple URLs pointing to compromised WordPress sites. These links likely serve as a lure to redirect users to malicious content or phishing pages, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 6
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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 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://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/43dc1826d8cb00f019017ffd537b5ecb/77164231286.pdf
- https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/67c02fbf8f802ccd546e4667548aec06/bidukiju.pdf
- https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/0cd8c1461b97a4bc3da7810a97dc4fc0/melugenakixo.pdf
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/62ii3hhq8a1sbacc71tbrhpc16/luvawazodosalatuvejetu.pdf
- http://a2itsolutions.com/chop/multimedia/userfiles/file/zexerabereruxo.pdf
- http://dzbnf.com/upload/file///ramixonijifetodanujuzek.pdf
- http://srividyaastrology.com/userfiles/file/zomarijemoxorukafum.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/dddc421683047333214681ce51937ec7/47234328909.pdf
- http://goldenteriyaki.com/uploads/files/5882850089.pdf
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/16098803c294e0---45550113423.pdf
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/3df164590fcc2302d9b19eb2d45df606/budawimukigebizut.pdf
- http://clairerolo.com/userfiles/file/namitegi.pdf
- http://csc0512.com/userfiles/file/20210618145938_fndgwt.pdf
- https://vanphongphampmc.com/upload/files/natalujirixug.pdf
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/jid3a86ibcrtuk9rnfs7bioeno/36631770060.pdf
- https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/qmuuol2444h3qmrqottecap3om/13536799152.pdf
- https://lesartsdansmonjardin.com/userfiles/file/20210617135413.pdf
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/703bf6a5ab4659a4f60eeb22f77fa987/nunefawuwivaremovedaz.pdf
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/969e97f44f86a1c7f71ffa6fc4d2599b/pezaluzaseguveg.pdf
- http://mtcongnghiepxanh.com/upload/fckimagesfile/48755793300.pdf
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/22d5bddae8675e3ac48c8c08ee0ec822/xebanifa.pdf
- https://rocksoliddesigns.biz/userfiles/file/22562119087.pdf
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609eda136f3c8---nemevimup.pdf
- http://carneslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/winogedazukejimak.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=threshold+frequency+formula+in+photoelectric+effect
- 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_off00015b63.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15B63 | 16792 bytes |
font_01_sfnt_off00017375.bin4a8460a4eb5e855696f39e02813bb27c0c389e82455915228cf00519387dc9cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17375 | 20688 bytes |
font_02_sfnt_off0001a8ab.bin9f87aa2ccae0767d58d41eaa520eec0fa017d6e58d7fdc6d06e7ad2c432bd6d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A8AB | 11208 bytes |
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