MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple compromised or disposable hosting sites. The presence of numerous PDF links and the use of 'utm_term' parameters suggest an attempt to lure users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 http://driver-jazda.pl/upload/file/toxolexurixuwo.pdf In PDF document text
- http://www.guus.edu.mn/ckfinder/userfiles/files/mitixidogadaxa.pdfIn PDF document text
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613a7843791f5---lesatuzokadajavawoje.pdfIn PDF document text
- http://corkpotters.com/images/10170847473.pdfIn PDF document text
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/92b9c6b9269558956d05f0a1d9a51fd9/7499684758.pdfIn PDF document text
- https://senesi-sklad.cz/userfiles/file/sejobopizoxoliru.pdfIn PDF document text
- http://sictombbi.fr/ckfinder/userfiles/files/23694689812.pdfIn PDF document text
- http://choinka4x4.org/cms/files/file/51987479453.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136b8f0ab5c8---zivitozif.pdfIn PDF document text
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/161370137213f3---dilubofafufagelixugoviz.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/g63e2e85ht1ihk4fotf7bjb8r4/wawonuzogonafuxijofo.pdfIn PDF document text
- https://birotex.rs/images/files/jajak.pdfIn PDF document text
- https://gikguamerica.com/userfiles/file/futixozexukijusowawugu.pdfIn PDF document text
- https://cqc-material.com/app/webroot/userfiles/files/26821160884.pdfIn PDF document text
- https://shevtsov-art.com/uploads/files/sososokir.pdfIn PDF document text
- http://happysmilecard.com/uploads/files/10989142812.pdfIn PDF document text
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130fcb2b161d---64093650173.pdfIn PDF document text
- http://parzenica-bialka.pl/userfiles/files/87362671864.pdfIn PDF document text
- http://yushendesign.com/images_fck/file/1630531314.pdfIn PDF document text
- http://meble-tk.pl/userfiles/file/68964441709.pdfIn PDF document text
- https://cyberbirddog.com/userfiles/files/4696763053.pdfIn PDF document text
- http://087334211.kad.tw/kads/ckfinder/userfiles/files/69814899647.pdfIn PDF document text
- https://webmakler.org/userfiles/file/sorurixumimoweriwi.pdfIn PDF document text
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/16139e89f22329---sulodevavolijevanobika.pdfIn PDF document text
- http://attlas.center/userfiles/file/satarupizojozuzafar.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=bubble+wings+apkPDF 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_off0000d040.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD040 | 10580 bytes |
SHA-256: 3b9934ea06ad90a7353ad3ac6823bd814d23218192e8c8274ed2f2212897b61b |
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font_01_sfnt_off0000e85b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE85B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001006d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1006D | 18512 bytes |
SHA-256: 8315308685bc27e1c8d2bff2c511a39199a183f67b5fe885bd791c19da00537c |
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