MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users to malicious content. ClamAV and ML classifiers confirm its malicious nature, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://cck-brno.cz/ckfinder/userfiles/files/nomisilonixupubugi.pdf In PDF document text
- https://aokman-drive.com/d/files/tifejurivubukep.pdfIn PDF document text
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/5fe43154ba60cb69cdc52c4b51a21749/mixanoropatutotenoji.pdfIn PDF document text
- https://pointswestliving.com/ckfinder/userfiles/files/47005503332.pdfIn PDF document text
- http://hrzservices.com/uploadfiles/file/89622222568.pdfIn PDF document text
- https://recapress.com/ckfinder/userfiles/files/76513981399.pdfIn PDF document text
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/tvqp4hktstfmp0nhde6v4mg7e3/faleripegaditap.pdfIn PDF document text
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f487a11ed3---4418507109.pdfIn PDF document text
- https://jahanchart.ir/data/files/file/benoxogidirikexavezigivod.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160871c5b06c49---mawanijasawube.pdfIn PDF document text
- https://theelementrama9.com/userfiles/files/75983346605.pdfIn PDF document text
- http://www.smwiarus.pl/ckfinder/userfiles/files/duroxujaxiritovaj.pdfIn PDF document text
- https://a2designbg.com/userfiles/file/7873945836.pdfIn PDF document text
- https://bulgariapools.com/contents//files/lolujesulupemonejorogi.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb872c18de---68621287750.pdfIn PDF document text
- https://big-affaires.com/img/pics/files/bukejelawaratojotego.pdfIn PDF document text
- https://sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/34846655448.pdfIn PDF document text
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/160b29e5b1d4e1---dodexididesutokiro.pdfIn PDF document text
- https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/eb6cbf2108069de249dac8341f88f936/paregutikelobep.pdfIn PDF document text
- http://cokhisah.com/webroot/img/files/99182518256.pdfIn PDF document text
- https://roweryelectra.eu/app/webroot/uploads/file/16262336686397.pdfIn PDF document text
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a46386e89b5---rokizununinire.pdfIn PDF document text
- http://afghansolar.com/userfiles/file/rokejolined.pdfIn PDF document text
- https://ebooksweb.net/files/file/53849341781.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=baraja+mnemonica+pdfPDF 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_off0000f937.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF937 | 20228 bytes |
SHA-256: 0cc847311a24a29cd1b44be2209f7b5cf0c283bdfc0341eaee4f834c9566142c |
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font_01_sfnt_off00012d96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D96 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000145ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145AD | 10652 bytes |
SHA-256: 1a6c12c6b6d5bd8dbfc8cca9732d621c1fad64bcc33436c393822613a9354a2d |
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