MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to compromised WordPress sites, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent. The file's structure and link farm behavior are consistent with a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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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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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 http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc1deb26be6---34204195476.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/16bf2fea73510b83e567cd5a3dc08437/taduji.pdf
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/19cupe0cocnun5qpftnej572ga/bolinotamisitazituwur.pdf
- https://colakcivi.com/userfiles/file/9154110457.pdf
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9e93f5e226---xalivinupotigukevesawe.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/6ad5a1ad0ff56dc83dfd8202eda9eaaa/48882789077.pdf
- http://thaoduocvn.com/userfiles/image/file/juritadazepowovuruk.pdf
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160cbc776e3f9f---dapuloxasolavixogifiwobub.pdf
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083de3e8e7d4---45848765921.pdf
- http://111-orte.de/testarea/cwsCMSlight/media/files/vuvabepugipik.pdf
- http://sluchatka-shop.cz/files/upload/files/8182670378.pdf
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1607edd439249c---15978785222.pdf
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc4f1c08449---13970113886.pdf
- https://bamor.org/userfiles/file/tisebabemetotebawiw.pdf
- http://gift-founder.com/archive/upload/files/wunubuzuzefojoga.pdf
- https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/158c28a4a80ada7afa6fca7bbd1be3b4/15041946552.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160797fbcbc143---36972717573.pdf
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8278b743dc---69537779308.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a481eb23f11---98591166728.pdf
- http://novussiteyonetimi.com/uploads/file/lupodixuvirada.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609475332d754---surisilenatevajeso.pdf
- http://mosjob.ru/images/file/satupek.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ikophi20a981mke8vajjiv0vh6/zazezikopa.pdf
- https://bibliothequedesarts.ch/ckfinder/userfiles/files/84623058234.pdf
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c0dc6e8084a---55510823004.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=one+thousand+exercises+in+probability+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_off0000bd60.bin5717d8e7d2bfd0bfa704a7bea7150bd38a334b68b87b276178a59d0ef2b3124f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD60 | 15600 bytes |
font_01_sfnt_off0000e4e2.binb7802f81731af8b09919167201873b278f04894de72a67399b97208338c10aaa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4E2 | 11196 bytes |
font_02_sfnt_off0000fee0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEE0 | 16792 bytes |
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