MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF is identified as an image-only lure, typical of phishing campaigns, designed to trick users into clicking embedded links. Multiple heuristics indicate a link farm pointing to compromised WordPress sites and disposable hosting, suggesting a distribution network for malicious content. The ML classifier strongly flags this PDF as malicious, reinforcing the phishing and potential malware distribution intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://allytemp.ru/uplcv?utm_term=hawking%27s+achievements+in+the+world+of+science
- http://vetranhtuong.info/luutru/files/26274155670.pdf
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/6e5eec66e23c81c2f75ec3bd7e66f1e6/rakibimanefavosoga.pdf
- https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/93bf14612ce2450b9ad6b9d66e527442/98186949378.pdf
- https://tiemhoamo.tiemhoahaibara.com/data/dulieu/files/duvos.pdf
- http://khacvietlaser.vn/public/images_news/files/welelurepedozudikepim.pdf
- http://www.groupementpecheduloir.com/ckfinder/userfiles/files/lemileri.pdf
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/e0a35cecd7d5e3131675e552951681cc/15016416159.pdf
- http://lehnerkom.de/images/uploaded/file/87524018670.pdf
- http://st-ark.it/userfiles/files/96372767975.pdf
- https://protrialse.eu/files/files/tuponidovekomagumuji.pdf
- http://civicwomen.com/ckfiles/files/6958343520.pdf
- http://study4student.com/cache/fck_files/file/kofilezorivixab.pdf
- http://lehnerkom.de/images/uploaded/file/96566906548.pdf
- http://xn--9n2bn9mz3aba29g44r4o0a.kr/fckeditor/userfiles/image/77450036324.pdf
- http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/20179514916.pdf
- http://gjbbang.com/userData/board/file/fezozunu.pdf
- http://zdravi-kromeriz.cz/files/file/70658341886.pdf
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/0f0a8effa6071e2a70fefed9fd4bc54e/lowotabujajugafepapuluva.pdf
- https://5udua.com/contents/files/buxuwedigizorewepidiro.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1614a0165b32b6---79767152844.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_off0000adb2.bin753eb5d74783951c705c591df49f72a6bff78d0d26efe275b4757af77f2bfab9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADB2 | 11192 bytes |
font_01_sfnt_off0000c78f.bin6a96dd2efafadf2e91d7bd762107c16f41dc740ed23758b808e17db5c0e2698e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC78F | 13956 bytes |
font_02_sfnt_off0000ea05.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA05 | 16792 bytes |
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