MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous URLs, many of which are hosted on disposable domains or compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://catamma.ru/uplcv?utm_term=top+10+highest+gdp+countries+2020
- http://kfnmdg.com/upfolder/e/files/20210911180833.pdf
- https://dudikom.pl/userfiles/file/zegomifepejuvekabubesukid.pdf
- http://captaincook.hu/userfiles/file/josasipotinagow.pdf
- http://kwong-cheong.com/userfiles/82069442402.pdf
- http://paglialonga.it/userfiles/files/75420302478.pdf
- http://rosniyom.com/userfiles/files/tuberitivapavos.pdf
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d1728daa60---pefekagebubifosijibi.pdf
- http://eaas-journal.org/survey/userfiles/files/rebujexab.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161337fc331a31---patow.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614baba6a482b---65777373895.pdf
- http://k9careclinic.in/ckeditor/ckfinder/userfiles/files/17330676019.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/3536f31e8a1ff133158d6ac162e1d7ac/rejigolepanapetimor.pdf
- http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/rewotarabadutolagolagepez.pdf
- http://www.florentmaussion.net/userfiles/File/dedisomagasuv.pdf
- https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/61861012481.pdf
- http://skia22.ru/pic/file/domanuzilofuzugav.pdf
- http://www.salac.cz/ckfinder/userfiles/files/78229827658.pdf
- http://zhuxintrading.com/uploads/ckfinder/files/20210901/16304838605301.pdf
- https://drosamahetta.com/userfiles/file/beputojokabigo.pdf
- https://fairtradeportal.pl/userfiles/file/sefupegetizokoribako.pdf
- http://3e-recycling.ru/app/webroot/filesfiles/1681827841.pdf
- http://qamsar.org/userfiles/files/vigisibura.pdf
- http://voszveszprem.hu/_user/file/64920068321.pdf
- https://papiratisk.cz/soubory/27112952550.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_off0000af57.bin15415a24d1322ec4ec3a3296febb3f5fe8065551f3f5269106b4cda632b96c75 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF57 | 14808 bytes |
font_01_sfnt_off0000d4c0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4C0 | 16792 bytes |
font_02_sfnt_off0000ecd7.bin3698737dba7f7a4bf6f0a39ee6ba7844c69bc07ae5412bb8f343f518179752ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECD7 | 10940 bytes |
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