MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many pointing to compromised WordPress sites or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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.passion-rnd.com/upfile/files/2021/09/03/76681248915.pdf
- http://print-resource.co.uk/ckfinder/userfiles/files/rotesexulo.pdf
- https://marathonblainville.com/userfiles/files/vexotare.pdf
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0d03d02c6---70579290818.pdf
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/a903e4e996a80d6d754c3b883e6f0541/7734240135.pdf
- https://vietnaminsight.biz/ckfinder/userfiles/files/diluleloxutu.pdf
- http://polyacer-ecp.com/userfiles/files/20210909_083851.pdf
- https://alansglobalservices.com/ckfinder/userfiles/files/paxepajamoralomafuwalut.pdf
- http://big-blue-bus.com/pics/fotos/1/file/wadodenotodekanunujuse.pdf
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/c801d6d41d8c418647d375dca3f8bea7/fipixubigarabumaw.pdf
- https://tch.lu/files/files/wenugakewubivagok.pdf
- https://chilegastronomia.cl/uploads/userfiles/files/33017352707.pdf
- https://lotusmarinevn.com/upload/files/limipekekovapuk.pdf
- https://poganyvolgyi.hu/userfiles/file/82275059137.pdf
- https://samavetpharm.com/userfiles/files/40677641160.pdf
- http://chatyzvule.cz/uploads/57204618877.pdf
- http://turningpointdigital.com/cote_dor_import/admin/ckfinder/userfiles/files/58659118493.pdf
- http://art-lan.ru/uploads/assets/file/69281568174.pdf
- http://plkorea77.com/ckupload/files/rofiv.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/161415e4d06726---46231940456.pdf
- http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/vomeg.pdf
- http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/63042975327.pdf
- http://sh-songshi.com/admin/upimg/file///semigajulevesorufoso.pdf
- http://everbeenmagnet.com/js/upfiles/files/89001116756.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=android+forum+parsingfehler
- 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_off0000cc46.bin18524a7c0a54ec923fb110b4f8a7965be2f26313ac69cb205996afc5e7ea9552 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC46 | 17648 bytes |
font_01_sfnt_off0000fa50.bin09afe86ba4ebbe5d9b481428dffe90ff703c0bfe2175733a818b7a54d4e8b648 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA50 | 10928 bytes |
font_02_sfnt_off0001132d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1132D | 16792 bytes |
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