MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple URLs, some of which point to compromised CMS upload directories or are part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect the user to a phishing or malware hosting site. The embedded JavaScript is a primary mechanism for executing malicious actions within the PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 http://nedvizhimost-v-sharm-el-sheikhe.ru/uploads/files/6411738415.pdf
- http://kimwendelldesign.com/ckfinder/userfiles/files/fonebupazidegapup.pdf
- https://srldirect.com/ckfinder/userfiles/files/nolegi.pdf
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/c4659fabe76f39130f9562fdffda2810/84790295803.pdf
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613860054efda---befuvidev.pdf
- https://8cj2aja7-8mxb.com/contents/files/52456168700.pdf
- http://cukierniabrzezinski.pl/www/artizam/fck/file/26816115969.pdf
- http://www.pilartangguh.com/file/34975188774.pdf
- http://marinda.ru/pics/images/file/77012984907.pdf
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/60369fb75169a31fe3aaefb4b03910a9/logosezoxonowojigo.pdf
- https://www.fibertech1.com/my_content/js/ckfinder/userfiles/files/kodilezaxerumodifijonupe.pdf
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161404b1bc8e3d---53381493297.pdf
- http://pokrowce-ochronne.pl/Upload/file/siver.pdf
- https://maharajganjtimes.com/assets/ckfinder/core/connector/php/uploads/files/nepug.pdf
- https://myphi.biz/nbloom/fckuploads/file/26494528202.pdf
- https://cqhuaan.myhost360.cn/upload/files/09-25-11-51-23-27.pdf
- http://westfield.qa/multimedia/userfiles/file/javewajoxaxuf.pdf
- http://kachelofen-prommegger.at/fovumokurinug.pdf
- https://irastuff.com/admin/ckfinder/uploads/files/digavujububatazibifalifo.pdf
- http://cnsgawefgl.netsociality.com/upload/files/70195583876.pdf
- https://rmp-traueranzeigen.de/cms/files/boxanusawunokowufed.pdf
- https://ytdrive.com/CKEdit/upload/files/14883005213.pdf
- http://agriturismolataggiasca.eu/userfiles/files/47737342188.pdf
- https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/23290579239.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=anatomy+coloring+book+pdf+free
- 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_off0000d29f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD29F | 16792 bytes |
font_01_sfnt_off0000eab1.binddc419d9a775d9aecd7e74df0dcadb6127f3fbe73eaef5ce6e55d2edb1ef61e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAB1 | 18800 bytes |
font_02_sfnt_off00011b9f.bin58033d726a7f52eb4d0365e55dbb432ea3895aa029850bee6dc09a177d423bbc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B9F | 11124 bytes |
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