MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically as a phishing or trojan delivery mechanism. It contains a large number of links, many pointing to WordPress sites utilizing formcraft or super-forms plugins, suggesting a link farm designed to distribute malicious content or phish users. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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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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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://crewmak.ru/uplcv?utm_term=class+6+science+chapter+5+extra+questions
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607a2144b3a27---riziduzerobimegaj.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/2514vqdrnncq7b4elilssb6dv3/dozikeporazovidetenufor.pdf
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16084f48e99311---jugoxojosodogetu.pdf
- https://next-engineering.com/userfiles/files/88820681013.pdf
- http://copingconversations.com/userfiles/file/22119415156.pdf
- http://crystalsteakandstogie.com/clients/1/1d/1dbb6d5698303b6304ae84622e226a19/File/38866917291.pdf
- https://lawyerupsmart.com/tempimg/file/xebojisuw.pdf
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160ac4a4604733---93269780294.pdf
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160e6177fde628---jowomoxenigagunini.pdf
- http://bigcool.net/webroot/img/files/94865052500.pdf
- https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e941578298b9e2c459729cc281f09d86/xapokowado.pdf
- http://pincailight.com/zk/UploadFile/file/2021061601120573499.pdf
- http://dolphinkorea.com/files/files/61885126949.pdf
- http://vhktn.at/images/content/files/36313471514.pdf
- https://a2designbg.com/userfiles/file/81813040024.pdf
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/6f65a94614bbebd5453b8e2ad3bb1880/nogivazalovixemawup.pdf
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/040364abcce3984535bba2a302bfe8df/zukeviwigelawi.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/infc5gghm4hkhgctfvf48sdc85/54705229949.pdf
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/sonl3tqu4lev1rvf0a474vstku/28239115786.pdf
- http://erictex.com/ufiles/files/81991239206.pdf
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/35659f143c45dbde5ed28695f7ac8b06/24127799200.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1609a1a49b4fda---81119962368.pdf
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608564b357289---milemimepituzuvago.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_off0000e253.bin251122a45872c0562637dd56f272357ce6cf2d8f2aa2d4304f51aed37f9b4b08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE253 | 16528 bytes |
font_01_sfnt_off00010cab.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CAB | 16792 bytes |
font_02_sfnt_off000124c2.bin1b7996b0083360b2af353d71f0b0dde4c07b4413b4f271a23316cd2cb4046c57 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124C2 | 11152 bytes |
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