MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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 http://xn--80akazwaeiw.xn--p1ai/editorfiles/file/7423476551.pdf In PDF document text
- http://jrpst.pl/userfiles/file/torisatezajadotu.pdfIn PDF document text
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/394465db14de321f9cf6683818a47cfd/82904039827.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/c0e2f3abfbbb7b8a6c75eda450688bf0/zujoke.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c704beba44f---50809384157.pdfIn PDF document text
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/8f6a925dd7ea3f5e34309c6cbde85b50/nezub.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16084c7c2eae99---90657138829.pdfIn PDF document text
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/8v2fa3s99lj55df7uhh3m8hkqa/vizobepusukibebofemu.pdfIn PDF document text
- https://arabacioyunlar.com/calisma2/files/uploads/70524453196.pdfIn PDF document text
- https://phucatgarment.com.vn/ckfinder/userfiles/files/96144850879.pdfIn PDF document text
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160717ab2e02cb---mabanajubujizosodewonu.pdfIn PDF document text
- http://vendingchat.ru/uploads/ckfinder/files/xofomitebuvogotali.pdfIn PDF document text
- http://vlajamo.cz/images/file/jesosawupawonot.pdfIn PDF document text
- http://first-group.kr/ckupload/files/28320989229.pdfIn PDF document text
- https://grandplaza.bg/uploads/assets/file/xenagukenutakosap.pdfIn PDF document text
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/ml6glfhkmh4vo3rp7abtshh192/55661203874.pdfIn PDF document text
- https://hifi-markt.eu/kunden/kronhardt/ckfinder/userfiles/files/53743031398.pdfIn PDF document text
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/m2k3dqqp04m8p0i073n1jekkf4/kabade.pdfIn PDF document text
- http://thaiboxes.com/piceditor/file/58929000373.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+know+if+it+is+a+blighted+ovumPDF link annotation
- 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_off0000f760.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF760 | 16740 bytes |
SHA-256: 245a21277c15786798614137c09f1c9ffa384835ca12f851d3143b3c98de2642 |
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font_01_sfnt_off00012314.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12314 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013b2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B2B | 11176 bytes |
SHA-256: 04c0dd7b9952ae66cce36750b3b6190f7ab52357ce2dca9f52e61026e9b9afd4 |
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