MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating it likely contains an exploit. The presence of numerous external URLs, many hosted on compromised WordPress sites, suggests a link farm designed to redirect users to malicious content or download further payloads. The heuristic 'SE_DOWNLOAD_BUTTON' further supports the idea that the document attempts to trick the user into initiating a download.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://infrive.ru/uplcv?utm_term=essentials+of+ecology+4th+edition+pdf+free
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/blnr4jkr38l31hkm38ksc3s5s3/dezujenikumi.pdf
- http://udaybharat.in/ckfinder/userfiles/files/fupivopipijaviwafuz.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca0c0bf9ac---90156451186.pdf
- http://banquat.com/userfiles/files/58322798609.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/mlto4b5mu1d4n3ooal7f1gpe00/36870246246.pdf
- http://amandatravel.com/userfiles/file/jixazenom.pdf
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16090328527cfe---91173094322.pdf
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fe203462a3---paxewurovezemurikikuwo.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c5d5e0e6e19---65213257166.pdf
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/16076ffde67efe---wugatevuzamazev.pdf
- http://deurenhanger.nl/userfiles/file/wupewiso.pdf
- https://remoteworkerclub.com/wp-content/plugins/super-forms/uploads/php/files/d528da0735d367557d2cc8641d629eab/89599879129.pdf
- https://securitydm.com/slicice/file/65555692780.pdf
- http://aksaaydinlatma.com/img/editor/image/file/7495760626.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c4216870a89---tikaxabedobilimarada.pdf
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad7bf6e0ae7---vikixenusi.pdf
- http://gopherandsquirrelcontrol.com/admin/images/file/72029915167.pdf
- http://baugeraeteverleih.de/benutzerdateien/vuzapu.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/dad6c920fa3a295ad35dd038f107c667/zugukolevifi.pdf
- http://dekoblickfang.de/userfiles/file/zagoli.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/294062b063d7753d07eaa77a41802aa8/26610490758.pdf
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d77f7ac053b---safesizuxakugefunel.pdf
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b8ebf9e3a63---65523702231.pdf
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/6685is10mmbn5kgs6cimsu7s92/xibutunizipebalofefa.pdf
- 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_off0000fe79.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE79 | 16792 bytes |
font_01_sfnt_off0001168b.binf6e36ff696b4bd3fabf57d586ae272a878e453cb69a73e69a6afd46138bde858 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1168B | 17616 bytes |
font_02_sfnt_off000144aa.bin33ec085f95ac15b00a51397d2009db14de4c19172a2a799c28b9286f9d1077d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x144AA | 11076 bytes |
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