MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. It contains an embedded JavaScript stream and a large number of external URIs, many of which point to compromised CMS uploads or are part of a link farm on disposable hosting. The primary attack pattern appears to be directing users to malicious websites, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 https://medvor.ru/uplcv?utm_term=steve+jobs+oh+wow+oh+wow+oh+wow
- https://longhoang.vn/upload/files/relavagonuwege.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160730d4f62620---14525738698.pdf
- http://www.provinces.cmcgeneralate.org/files/js/ckfinder/userfiles/files/40798001717.pdf
- http://stepasidemedical.com/images/uploads/file/38574945427.pdf
- http://abbuffalowings.com/uploads/files/6418799572.pdf
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/irpnr6pjloo7e5g35m91jb2f3g/vevapokedananarukinudem.pdf
- http://esteticka-stomatologie.cz/files/content/file/rapivunovovibifed.pdf
- http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac5f1cb48e7---kuzokowogenifexijomako.pdf
- https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/743m1o51ove8d7bgfv8ijlg95t/14819584633.pdf
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/lsma7sfkvkedtrckic8dj1h7k2/jatefadomukub.pdf
- http://woodbridgeabw.com/uploads/files/6925095881.pdf
- http://neonatal-surgery.ru/userfiles/files/xugosadewo.pdf
- http://kotolantopeni.cz/file/83026879679.pdf
- http://2ds-creations.fr/userfiles/file/batukemopomuzebolulaw.pdf
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/16091434129cc6---dudotomokaneris.pdf
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a9b4eb4fb7---16573160851.pdf
- http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mavanopulakabu.pdf
- http://ferrogep99.hu/static/media/file/20274496276.pdf
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/8d2f2dcf1051c412284c6fc11bfeee0f/38217142571.pdf
- https://argentinaproduct.com/ckfinder/userfiles/files/rafazitapimopipidudig.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a0874a04f5b---27400069687.pdf
- https://traveletrust.com/basefile/traveletrustcom/files/gejakoxot.pdf
- https://altonika.pro/files/fck/file/mederufagokelekuzilutup.pdf
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/f0a70d1884db12ee770d445a9e15b05a/dawuwaxavexefad.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_off0000c5ad.binb405b1bbc7c1bfe750a67110ac31b1ea9d5e94eef0674bf7a9dd23ca107640f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5AD | 15944 bytes |
font_01_sfnt_off0000edd2.bin49c42fa27608d142ad1ab79045c3209a7b3011981096a2c92232298bf1683503 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDD2 | 10200 bytes |
font_02_sfnt_off000104ec.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104EC | 16792 bytes |
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