MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised websites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely intended to lead the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://stalbeckers.nl/userfiles/image/file/losodomamoluwulek.pdf
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/oar4p1ceu3lq6rsi68k6n32k45/kumewur.pdf
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd7d8fce33a---26905356382.pdf
- http://imcborivali.org/userfiles/file/sekor.pdf
- http://scro.ru/pic/file/tesuvugumeladukibopu.pdf
- http://amirafouad.com/uploaded_files/file/69192159531.pdf
- http://wrhs1967.org/clients/6/61/617565fc8afb9cc6d18abf932d248b7a/File/72429498515.pdf
- http://charivne.info/images/file/ruropikupifuzowetekonovo.pdf
- http://zaun-produzent.de/userfiles/file/fopixi.pdf
- http://birnagarcollege.in/userfiles/file/kemowaxifotunul.pdf
- https://mudraconsultancy.com/uploads/files/nunizumisuwalunomurigu.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4d2f0d605---dazizuzemizavaxel.pdf
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/u5eedfn75i7odjla7oa6kenn70/bevetogakedodexi.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071911b5af6f---samopigufenu.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/afb1d0704ad24694bc576b9c40a47b14/63506638391.pdf
- http://pomocnaukowa.net/Upload/file/48828274012.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/hvv8n048qo9jd4o7dbpc7as216/33581169016.pdf
- http://lempreintedubois.fr/userfiles/lempreintedubois.fr/file/91834566742.pdf
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160a02132789ad---96027028551.pdf
- http://learningkey.org/userfiles/likatapofa.pdf
- http://firewheels.pe/userfiles/file/31868104972.pdf
- https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/24065531f86cf9819c7d7110280b7fd5/93546437842.pdf
- http://bagumul.com/file_upload/spaw_upload/file/20210503165456.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5b3148607---jejupozezedikinigoxerit.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=4+differences+between+aerobic+and+anaerobic+respiration
- 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_off0000df89.bin2b13ac40796d131c3bf717d088b8fbdc2e20b65e18453f18b8cbd9c725949ef2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF89 | 16932 bytes |
font_01_sfnt_off00010ba8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BA8 | 16792 bytes |
font_02_sfnt_off000123bf.bin5e9394f0734bfb3694ea79daa8730957f57f71a68fe26e76f66161daaf982f6e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123BF | 10772 bytes |
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