MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm with numerous URLs pointing to compromised WordPress sites and other disposable hosting, suggesting an attempt to redirect users to malicious content. The PDF structure and embedded links indicate a phishing or malware distribution lure, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://synerhu.ru/uplcv?utm_term=energy+flow+in+an+ecosystem+9th+class+exercise+answers
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/9afdbbdef4d5853cad08a99f62b7de50/liwazepogekezepe.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b450fbdf31---74095771559.pdf
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/96a7c042a15aac8fbe2b3c172e0188b8/67360902462.pdf
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/532d94778d9a19ed7787aefe636ff278/6087027679.pdf
- https://petek.biz/resimler/files/lasomadevitirumunepig.pdf
- https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/afa427235b7616deab9d109fc541050d/visiramaferovibivefafino.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b7df18847f---nupenu.pdf
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/95d7783f7f8b34ef419cf67bd140a921/65517006520.pdf
- http://odnoklassniki-files.ru/images/uploads/files/81598156786.pdf
- http://kondicionery-vidnoe.ru/upload_picture/file/98587561309.pdf
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec3a08143f---pevutirapabiripefabazote.pdf
- http://kpdb.org/userfiles/files/72935751489.pdf
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f626886fa8---dikitodevibolapatavaniri.pdf
- http://aydinservis.com/ckfinder/userfiles/files/48668652922.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160abc5c6173fb---57365474410.pdf
- http://kondicionery-dolgoprudny.ru/upload_picture/file/bojikegix.pdf
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/44373a8ccd5664bf7467a8cb1f062cd3/bibejaxuluxanugawaxov.pdf
- https://boucherienabli.com/uploads/FCK_files/file/79584428193.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_off0000f51d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF51D | 16792 bytes |
font_01_sfnt_off00010d2f.bin59a99c013911e7985aeab8a2a73f68443c75be5c5fef5e215e76339c68f2f6c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D2F | 16768 bytes |
font_02_sfnt_off00013894.binffb2dce7e0dd401ca8d1b6bf9992f1a1853fb775482aa8bc4cc867965d250866 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13894 | 11236 bytes |
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