MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. ClamAV and ML classifiers confirm its malicious nature, specifically flagging it as a phishing trojan. The sample's primary function appears to be distributing links to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/f877b273ae84b9c27fb07b70c485bcac/20404888703.pdf
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/slrj4andbck42f4i6rg4o6io3l/40805727725.pdf
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/1ju3kd0oo89eloe9t9k0c76vq0/kajumarun.pdf
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf24b9a72f---30988268016.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082f1903cc6e---40007589068.pdf
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/r68f4vd21vg2jo4l0vga04go99/visoletibatobibifixemelal.pdf
- https://akproauto.net/nbloom/fckuploads/file/82813698726.pdf
- https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/ee667480d86b46e520695d81fc22d531/12092390018.pdf
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/g2qh7i05vrumh1clvd8j74dot4/xukogidezomelepetejupon.pdf
- http://euro-ex.net/images/blog//file/werirofolin.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/12304efbaade178b4d68f930d7af9a01/50437768324.pdf
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/d276b246caa663348bf3e5671695665c/69190114564.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160804dafdf572---vejalenad.pdf
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/16086d00a4fbc7---fefamorifubavipepopav.pdf
- https://fourseasons.events/wp-content/plugins/super-forms/uploads/php/files/612b3034c91363af1271435b4806feae/95495626918.pdf
- https://anthonygillant.com/userfiles/file/basafugunolewevawasi.pdf
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e5107dad7e---90755850176.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/fg1lt800bj8v9vlnj5r6g1f360/dakijofexavivoduzujij.pdf
- https://roweryelectra.eu/app/webroot/uploads/file/16246740998144.pdf
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608800acf17d6---zedaxasegozovovajosox.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099ab314379f---65431661077.pdf
- https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/25bq6fd0bs4ec1k2cerr6ssobj/14364983731.pdf
- http://adamlegal.com/userfiles/file/13188017062.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=horned+wreath+location
- 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_off0000f25f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF25F | 16792 bytes |
font_01_sfnt_off00010a76.binbded78182a67d11253aff9277b1a6a856a4192632fc4ee61cd4d8bdeae3618cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A76 | 10376 bytes |
font_02_sfnt_off000121cf.bina1555746dea8a7847f12f2dc03c46885c9018623aadcfd76ba268c11e8cc731e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121CF | 16920 bytes |
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