MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of external links, many of which point to compromised WordPress upload storage or disposable hosting, indicating a link farm. The presence of embedded JavaScript and a high ML classifier score further suggest malicious intent. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly supports a phishing or trojan distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://www.majbrno.cz/uploads/files/gonekuzarepakexiwisiwel.pdf In PDF document text
- https://agriplan-rs.com/dados/ckfinder/files/8209112119.pdfIn PDF document text
- http://trubaopt.ru/content/file/17887503404.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/16140618029f1a---toxesamibuzatel.pdfIn PDF document text
- http://ukrkarta.ua/fckeditor/userfiles/file/fomubevigewi.pdfIn PDF document text
- http://2016.letnifestiwal.pl/ckfinder/userfiles/files/jatopat.pdfIn PDF document text
- https://inprovitpuertorico.com/ckfinder/userfiles/files/41285785563.pdfIn PDF document text
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/1bebq8mtq4f107b5g4454dmkml/29078185616.pdfIn PDF document text
- http://tpdw.pl/userfiles/file/70296739526.pdfIn PDF document text
- http://php-lounge.de/userfiles/file/tinevupilinamikili.pdfIn PDF document text
- https://ketex.com/trcgp/ckfinder/userfiles/files/69076810448.pdfIn PDF document text
- http://giprozdraw.ru/ckfinder/userfiles/files/66916794978.pdfIn PDF document text
- http://dobermanncz.eu/files/69467804417.pdfIn PDF document text
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1613a313d73503---gamapisizilotuwoluwa.pdfIn PDF document text
- http://vidol.nl/userfiles/file/10546144359.pdfIn PDF document text
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/161440a373252f---92551814895.pdfIn PDF document text
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/2cegg173a2k7h2vjfccqbsi2v4/ruvoru.pdfIn PDF document text
- http://tsutae-f.com/js/upload/files/45917212148.pdfIn PDF document text
- http://geoman.cz/data/file/8851728657.pdfIn PDF document text
- https://dlt-nkp.com/fileupload/file/fuxamalubufinupotime.pdfIn PDF document text
- http://wpchkg.com/upload/image/file/32355611324.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=filmywap+apk+download+for+androidPDF 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000afa4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFA4 | 14168 bytes |
SHA-256: 0b2adc0d65656fcb0a579fb46ab7bd146f95f51cee319c83c6e5d7c8f37af20e |
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font_01_sfnt_off0000d30d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD30D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eb24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB24 | 10532 bytes |
SHA-256: 3a026aaa12f89d10e440291ef4242b33f39985b99b4dc7ba4d9820a6716a3911 |
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