MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many pointing to compromised WordPress uploads or disposable hosting, suggesting it functions as a link farm. While no scripts were explicitly extracted, the nature of PDF exploits often involves embedded JavaScript for malicious actions, and the URLs indicate a phishing or redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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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://coretry.ru/uplcv?utm_term=how+to+retrieve+blocked+numbers+on+android PDF link annotation
- http://baschin-heizung.de/meineBilderAlbertGrundschule/file/jeposo.pdfIn PDF document text
- https://samarthanamparisara.org/apadmin/uploads/userfiles/files/wapami.pdfIn PDF document text
- http://zeroseistudio.eu/userfiles/files/97305319945.pdfIn PDF document text
- http://ingpiazza.eu/userfiles/files/89602116080.pdfIn PDF document text
- http://3e-machinery.ru/app/webroot/filesfiles/63516769860.pdfIn PDF document text
- http://artpolinakuzina.ru/pict/file/demonutulesuworekegixabul.pdfIn PDF document text
- https://skywaytravelandholidays.com/ckfinder/userfiles/files/mizugupedojoxegitu.pdfIn PDF document text
- http://cameralehiep.com/hinhanh_fckeditor/file/tolesopisofogelanu.pdfIn PDF document text
- http://morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135646da8a9a---87545892889.pdfIn PDF document text
- https://marwaautorepair.com/nbloom/fckuploads/file/17110343340.pdfIn PDF document text
- http://phuocthuan.vn/images/pic/file/darofanowojomizevalede.pdfIn PDF document text
- https://masterjobintl.com/ckfinder/userfiles/files/58903335132.pdfIn PDF document text
- http://hrjok.com/uploadfile/file/85481172516.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/5p4b9d7lkttk6io3p0g7dvu48s/43312700031.pdfIn PDF document text
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/jhr6jaoou8u74p5vf7e0n4pjj0/dipulizurizesafab.pdfIn PDF document text
- http://uzks.hr/upload/datoteke/xigizeku.pdfIn PDF document text
- http://gotoippc.com/ckfinder/userfiles/files/14037930286.pdfIn PDF document text
- http://contua.org/userfiles/file/korewogitexeb.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161386210a238c---76128292687.pdfIn PDF document text
- http://codienlanhminhquang.com/upload/files/waredekiki.pdfIn PDF document text
- http://cuiquji.net/d/files/17462133765.pdfIn PDF document text
- http://faradbox.pl/files/file/luxaxukotijure.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_off0000da27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA27 | 17648 bytes |
SHA-256: 104a3b66b337b21b815ea1942f1ecf3611fcb0eef5c921dd57c36d16aefe4eae |
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font_01_sfnt_off00010770.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10770 | 11008 bytes |
SHA-256: fc509ecd4c83dbd16bc8836b6dd393ecce8f6142cb220913145cd1cb6702492b |
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font_02_sfnt_off00012106.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12106 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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