MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload directories or disposable hosting. The heuristics indicate a link farm designed to redirect users, likely for phishing or malware distribution. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 6
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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://allytemp.ru/uplcv?utm_term=change+chrome+background+to+black PDF link annotation
- http://rosesrealtyhomes.com/userfiles/files/wowivutoxibavedobumax.pdfIn PDF document text
- http://cozycornerexpress.com/uploads/files/2887958125.pdfIn PDF document text
- http://cascad-trans.ru/files/sefijavemisifi.pdfIn PDF document text
- http://mabo-meccanica.eu/userfiles/files/66305031809.pdfIn PDF document text
- http://ahkkpcm.org/userfiles/38484853217.pdfIn PDF document text
- https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/71159088762.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/sn1r917aa4d58cl7fpi0jf5u04/jevevamisekezotemawofefo.pdfIn PDF document text
- http://tns-china.cn/editor_upload_image/file/15906502962.pdfIn PDF document text
- http://all-paca.com/ckeditor/ckfinder/core/connector/php/uploads/files/mojakuzezamaxopimizu.pdfIn PDF document text
- http://cadelupo.it/userfiles/files/xunatusew.pdfIn PDF document text
- http://nemdanangpho.com/uploads/2021-09-08/images/files/nasifa.pdfIn PDF document text
- http://dkind.net/userData/board/file/jokunapesuboreredegizuk.pdfIn PDF document text
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136fd74192b4---nebub.pdfIn PDF document text
- https://www.verimevzabavu.cz/ckfinder/userfiles/files/95753688397.pdfIn PDF document text
- http://www.madiran-cruduparadis.fr/ckfinder/userfiles/files/duguzoxalamadapuviko.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/42ru11due75thledta2ok0ndr3/79800410642.pdfIn PDF document text
- https://citronixdeflection.com/nbloom/fckuploads/file/44357290262.pdfIn PDF document text
- http://graciaindoutama.com/kingkong/userfiles/files/bumumebezep.pdfIn PDF document text
- https://krusomying.com/data/file/toxarapedomu.pdfIn PDF document text
- https://noithathoaphat11.com/upload/files/95331026841.pdfIn PDF document text
- https://songhong-thudo.com/img/files/rewug.pdfIn PDF document text
- http://worshipedia.net/sites/default/files/file/rugomomotigesunoso.pdfIn PDF document text
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/306574ebf301e986168dc5b2c91f6315/muzufumewuvoduwovitiw.pdfIn PDF document text
- https://u-spot.biz/js/ckfinder/userfiles/files/80187844663.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c1c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1C2 | 17500 bytes |
SHA-256: b84fed1f57d2bae11d0238146c3064e5a1673781f4401098dc7c6bee9baadc29 |
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font_01_sfnt_off0000ef4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF4D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010764.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10764 | 10920 bytes |
SHA-256: 0c9ae2d9208a93418f78aace029a96a12767f76673c1ad7f33bde734c9263dfb |
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