MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs, many pointing to compromised websites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall detection profile strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://chcial.ru/uplcv?utm_term=delete+some+apps+on+my+phone PDF link annotation
- http://gndpta.eu/news_objects/files/89747658263.pdfIn PDF document text
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16143c2309ec89---tubavuwawokediferazataxuz.pdfIn PDF document text
- https://skinrepublic.vn/webroot/img/files/pagolomituditinel.pdfIn PDF document text
- http://bunian-co.com/other_files/File/goxuruwobevolenubasus.pdfIn PDF document text
- https://santa.sg/images/users/00000000/files/ketipagarobalagirifolowo.pdfIn PDF document text
- https://n-zvuk.ru/upload/file/burerujadaxola.pdfIn PDF document text
- https://12shio4.com/contents/files/kolosanixowi.pdfIn PDF document text
- http://wine-paraphernalia.com/files/winep/_repo/file/vejelu.pdfIn PDF document text
- https://ganport.pl/userfiles/file/xanezofefu.pdfIn PDF document text
- http://kdwatch.net/upload/files/2021090117523231.pdfIn PDF document text
- http://herbwaterthailand.com/userfiles/files/zigexilefi.pdfIn PDF document text
- https://floresdeserrezuela.com/aym_image/files/rexumisufufawazibureb.pdfIn PDF document text
- https://tasleemdubai.com/userfiles/files/pirujujojubixurar.pdfIn PDF document text
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16136bebc139d9---bekimoguwubedebe.pdfIn PDF document text
- http://livestocktool.com/d/files/jakalobe.pdfIn PDF document text
- http://industrialsupplies.pk/userfiles/files/31273843793.pdfIn PDF document text
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/0fa3bc54227264fd2bd88bb0f7178d5b/xifawususuzepizaradobakob.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f70ddc7deb---nuliwesonowefijegixo.pdfIn PDF document text
- http://xaydungphongphu.com/uploads/files/buraxuxowotamejamo.pdfIn PDF document text
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/64d1f47f7dac8c5cf6487b507fac6a22/15668837064.pdfIn PDF document text
- http://a1climbing.com/userfiles/files/61724845355.pdfIn PDF document text
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/161358859a64a0---19551747006.pdfIn PDF document text
- https://groupburuemas2.com/contents/files/72965137858.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_off0000b79c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB79C | 15292 bytes |
SHA-256: 0b78c27c752a3ad1a673552a421c6c37278067602a21123c649e4e79860aeefb |
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font_01_sfnt_off0000de54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE54 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f66b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF66B | 10440 bytes |
SHA-256: 82380695c5d9f5f84fe05da981a3ebe46445f90c3ec6c7e245a96f019ebc5ae9 |
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