MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document is detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It utilizes a link farm hosted on compromised WordPress sites, suggesting an attempt to distribute further malicious content. The document body, though heavily obfuscated, appears to be a lure, possibly disguised as a user manual, to trick users into interacting with the embedded malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://nhathuydesign.com/wp-content/plugins/super-forms/uploads/php/files/fsdg3rn14i74f958kqqkabjiua/vorififududeforomu.pdf In PDF document text
- https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/9l0rh6i4ohf73cmos6u8dt5n05/kalinesutigavuxemejerese.pdfIn PDF document text
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/623b25a8d8938566df7b5d7e0dc60e65/toxasugisolixod.pdfIn PDF document text
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e7f576e92---84343235824.pdfIn PDF document text
- http://meble-tk.pl/userfiles/file/xamadufelakowa.pdfIn PDF document text
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160790e4c0188b---56770831205.pdfIn PDF document text
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/05bc9c6a1a8558a8b10a26418cbdb4a6/bifunisibapojevakuletu.pdfIn PDF document text
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e69f22646e---35517513908.pdfIn PDF document text
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/d81f91c8433b3bc8937dce3522fdab61/98865382539.pdfIn PDF document text
- http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/49c87d7552f6a6bf50c76d3e95ea8cbe/lezusanupejolifaj.pdfIn PDF document text
- https://www.vbclighting.com/wp-content/plugins/super-forms/uploads/php/files/94b8d77b1d42674b5b7f3aa4aaeb7d6a/vudilo.pdfIn PDF document text
- https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/vofj12060rf3b7qo6gimuk5i6k/17385916360.pdfIn PDF document text
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/20adcd477200454515dbcdff4b690590/28247353447.pdfIn PDF document text
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/ghr7ochj9nnckiu3ak406u9d2h/9967908550.pdfIn PDF document text
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607689220a84b---ludekelivi.pdfIn PDF document text
- https://fanaf.comarticle_ressources/file/banosid.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1607262cc5bfb8---fuferoxosomedomodolo.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/dsef22psb6e3k7d46sij3sn851/dolevixitobo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=whirlpool+wdt720padm2+owners+manualPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eefb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEFB | 5660 bytes |
SHA-256: 8b7f358d7c13e84eba88a033e24ff4eff0c0c952cffaffaac213299fe85ef143 |
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font_01_sfnt_off00010229.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10229 | 12256 bytes |
SHA-256: 30766bf6ffe069ad5e7452d2c05a7ef66c8971c6bd98c8d3f475003984c37b74 |
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