MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF contains embedded JavaScript, which is likely used to redirect the user to malicious websites. The PDF is also identified as a link farm pointing to compromised WordPress upload storage and disposable hosting, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/4aec42c406eaa6245310a2a8cad23527/48593146677.pdf
- https://denizlihorozu.com/resimler/files/xapaxife.pdf
- http://soepcentrale-dekeyser.be/userfiles/file/fifelaxagefatuvamowozi.pdf
- https://marlin-aquarium.ru/ckfinder/userfiles/files/zuxulowakuwulape.pdf
- https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160739c493e6fb---9212831613.pdf
- http://takeacode.net/user/d41d8cd98f00b204e9800998ecf8427e/file/87027081646.pdf
- http://pixel-pro.ru/upload/file/42583148130.pdf
- http://lovec.bg/root/ckfinder/userfiles/files/57670694118.pdf
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/2b2fa24156f37193f91162e7e7ab16cd/43258488189.pdf
- https://limsurdua.com/contents//files/zamuluwujumomevemugutetu.pdf
- http://alt-1c.ru/userfiles/file/25010474354.pdf
- http://happyhanool.com/ckupload/files/86639707608.pdf
- http://asupuro.com/user_data/image//file/detogexomalewakipimu.pdf
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/fd7e4e1decf77c44d3358d5f442222d9/34994550819.pdf
- http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/warebu.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607cba07e18ef---71761151154.pdf
- http://bestbelly.org/content/files/files/72146023857.pdf
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/9fba392c165dd4c3c0108e7a47644bb3/guvipowapekalamajujub.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608f155beb018---84157178475.pdf
- http://babamoleskine.com/files/file/22131635628.pdf
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c24ac59f700---kopagulimepe.pdf
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4f8227368---pagurozanilanebumo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=permit+to+enroll+form+kaiser
- 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_off0000edb7.bin6e8b6160b17d351c12cd8039d53471d500580fc8c5739959a1311dedb3eff259 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDB7 | 10468 bytes |
font_01_sfnt_off00010578.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10578 | 16792 bytes |
font_02_sfnt_off00011d8a.bin84875afef990f7bea56b3d648427ca63325857a3b8581288fcb6d1d5d0b02ec2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D8A | 17704 bytes |
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