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 is likely a phishing or trojan delivery mechanism. The presence of numerous external URIs, many pointing to compromised WordPress sites and using UTM parameters, suggests a link farm designed to redirect users to malicious content. The heuristic for a visual download button further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://wastran.ru/uplcv?utm_term=mommy+speech+therapy+th+medial
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/ger1uamhlsn0abgh806scjodh3/baxojegugotaladafalivoji.pdf
- http://clubselectionvoyages.com/images/file/xovigilov.pdf
- http://gospel-pour-100-voix.com/fichiers/newsletter/file/7019873198.pdf
- https://classconnbio.com/img-jacson/files/31525468891.pdf
- https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/1cn4vi0245j7f36e58rns3nc96/23345472906.pdf
- https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/cf0f3bbf5d84e4fc2b5c532cab55cdb4/pagojejowubimudisex.pdf
- https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/1ec3d0b49662cc3f408294c4d3824b2e/36476449351.pdf
- http://ekotronic.eu/files/file/jalikazumamezis.pdf
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160932108b0048---xaxegadivagodulopaso.pdf
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/5c782e6d9431db6484ccbc78ae9915f8/87422837205.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b2b24036bd1---wexumobenimegapum.pdf
- https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/2e2h5eernmv54kpes6h3rjld33/sijuvonegoxavogotefotifov.pdf
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5d75dba69f---vomamodamonusi.pdf
- https://tavcam.com/upload/ckfinder/files/67251087648.pdf
- https://ambient-interier.cz/files/files/fekafozi.pdf
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c546dcdd104---6985781577.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16072730753f18---35649477099.pdf
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609879afb2c0e---zelomobajodadutaku.pdf
- http://www.aadhar-interior.com/userfiles/file/35926871925.pdf
- https://www.llgnjinc.com/wp-content/plugins/super-forms/uploads/php/files/8428228fdb579256ad0d2a4e73651bcc/ninugulirirexojuxanatu.pdf
- http://susutour.com/userfile/file/notapi.pdf
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16075a12d6e6db---48739411558.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/a21fb28db77a9c5c718974334474c751/48771114542.pdf
- http://soles2walk.cz/data/file/29101692594.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_off0000dc76.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC76 | 16792 bytes |
font_01_sfnt_off0000f488.bin634d1ab7de0f3999e717ad4d8ed0cd5193af83a9ac21d18328b9046c68325493 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF488 | 17244 bytes |
font_02_sfnt_off000121b8.bin3563140e067afcf0aae271a584bfe5acd951f5962a81c26383e7228d3a5d9fc4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121B8 | 10780 bytes |
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