MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and numerous links, many pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier further indicate malicious intent, likely to trick users into downloading a second-stage payload disguised as a PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://irlanc.ru/uplcv?utm_term=how+black+out+text+in+pdf
- http://noithattamphuong.com/upload/files/25874861415.pdf
- http://www.alex-vasilkov.ru/images/wisdom/file/dajebo.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3d2b81420---16096351664.pdf
- http://autosklo.sk/pictures/file/54997238030.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160815b06e57c6---87123116026.pdf
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/16098be8c248ea---xutur.pdf
- http://ventiliatoriai.lt/js/ckfinder/userfiles/files/dudifefa.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/4gphc1jj8mhm1n8vde58fckcp6/tefunonowutala.pdf
- http://emeraldcovepartners.com/_data/images/file/45009174823.pdf
- http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac93a54e674---63628237078.pdf
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/a1f138a332ac760aebefb1fe7833c1b4/mefinixubegare.pdf
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/rdcecmvf30bk31j49nhe05gm06/37976425953.pdf
- https://hosvagyok.hu/userfiles/file/28927664884.pdf
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf72decd56---43692118509.pdf
- https://ajwatravel.com/wheelmarine/userfiles/file/pupadatapulizojepexa.pdf
- http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/lidiparizoga.pdf
- http://ubytovna-krumlov.cz/userfiles/file/8562906789.pdf
- https://koetec.com/home/~ptow/public_html/ckfinder/userfiles/files/xowipuvalubululet.pdf
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/dd1ff41d48e4aac453d60bf59faa63fa/xonamajezatopukokolorus.pdf
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/rs0om3ulbepdokn4ogb0oddg6j/ridufemux.pdf
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16073cbb5e9ed2---boselobuzuroda.pdf
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/cb79sob3gok9nbf6vnqe46ndn7/35754279464.pdf
- https://www.bevillelecomte.com/ckfinder/userfiles/files/dofinid.pdf
- http://laptopcuhaiphong.vn/upload/files/mokesonobu.pdf
- https://dialogueinpraxis.net/files/docs/xisapusibebusafizu.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_off0001112f.bin330e154b210f4f6cdea05d5f55f15b19f2fea1f2a4d4e9bb5758383871693977 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1112F | 10856 bytes |
font_01_sfnt_off00012a35.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A35 | 16792 bytes |
font_02_sfnt_off00014247.bin4e0d7e330b321c129322a11cf47032879b0a415c2f48a0932c25294ed4ab60cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14247 | 18000 bytes |
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