MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple links to compromised WordPress sites and disposable hosting, suggesting a link farm designed to distribute malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though partially corrupted, includes a lure related to creating custom avatars, likely to trick users into clicking the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://catamma.ru/uplcv?utm_term=how+to+create+a+custom+avatar+in+vrchat
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609e9cd4b028e---25726451974.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/3vg4hh4e4pn2thmcn0o8mp9m05/mizekubakaxurefuwera.pdf
- http://bearings-home.com/userfiles/file/mapudewatigezopix.pdf
- http://maslatalaia.com/userfiles/file/fivivowurolel.pdf
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/53a0e446e11b57cfaaa3a9964e074d69/tasuja.pdf
- http://aj-logistics.com/stock/userfiles/file/47358045231.pdf
- https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/r608aui5bcnhj75sbn8jrs3cih/geweroduxotivabagomeses.pdf
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/cdcd6fb3dcfafb2e4e5d97686a2da217/xufoluj.pdf
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/uhctj4qm6clvqrijmiitcb9pp2/77372917428.pdf
- http://walkofagesvt.org/clients/0/0e/0e42319052772b195a43ba3ede0f03e0/File/difulojidokexomenarumu.pdf
- http://stylekd.ru/files/salevugixuwawazijunes.pdf
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/od3t152j08i9o5rvkpmq52poti/69411181162.pdf
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160c431f287bdc---nukitixoputotemowozux.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/tokujr6a56o0hopjng9e5kvbig/durizara.pdf
- http://absolutelyneon.com/userfiles/file/mubuvexolunixisaduki.pdf
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/0494122b2417a28805489f08ec1acebd/kujiderone.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/i36e3g479cs95v9abcgmkbukb7/jukitafagakulorakitolapi.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f09f.bin9a0a8efccb8ddd55e59a7cb9f18c678dc6ff7c311c609b16e471a1dca3510435 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF09F | 5120 bytes |
font_01_sfnt_off000101f5.bindfd5bea8aee6c0bc40125bf8fbe7aedcdf948de563526ba1ed8c9e351349ba52 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101F5 | 11368 bytes |
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