MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous URLs, many of which point to compromised or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery. The embedded JavaScript is a common technique for executing malicious code or initiating redirects within PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 7
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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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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://doctmcooper.com/userfiles/files/defesofafivavavepujixe.pdf
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/75302dc270bb9edcf65ab7a6b123d63f/62958110932.pdf
- https://lodoshosting.com/calisma2/files/uploads/monejeburisotamexukolobo.pdf
- https://adverto.ee/userfiles/file/piruno.pdf
- http://snnet.kr/board_pds/fckeditor/2021/09/file/6301198940.pdf
- https://buyafranchise.org/files/files/14985802910.pdf
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/qghn5rfdui833o8vq5epa7p1gu/damajix.pdf
- https://funke.be/data/file/jevowu.pdf
- http://mail.teleserviciomalaga.com/ckfinder/userfiles/files/gariwulidogemelegidipesu.pdf
- http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/31154523657.pdf
- http://edu-family72.ru/content/images/uploads/file/vaxomunigelunasewaron.pdf
- https://qualityroofinnandsuites.com/nbloom/fckuploads/file/17333776365.pdf
- https://branchennachweis.eu/userfiles/file/44849089577.pdf
- http://iiiemjobs.com/FCK_Editor_Images/files/31172226101.pdf
- https://mashura.co/userfiles/files/97725665417.pdf
- http://cinebuzz.be/uploads/userfiles/files/rageneraluxixetiwek.pdf
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/fc23b4dca19b39e75d33678a46a0bc84/gumuvogilurowuwusuwuvaji.pdf
- http://copingconversations.com/userfiles/file/tuxatuvamamimoselesati.pdf
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/161384624bcfb0---47324222707.pdf
- http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/34372560582.pdf
- https://cpc-serbia.org/js/files/29664901621.pdf
- http://ikuma-car.com/js/upload/files/vakudajitisedizaf.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=hex+to+digit
- 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_off0000cb8b.bin7c359ef5007699cc9c0e714d18cee5e8bf282f384c80efc34a2551014b956e70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB8B | 17996 bytes |
font_01_sfnt_off0000fa9a.bin86ce74a35c79db25e81236d75ff1888357e7e27275e59d5275a1cde8bd0e0624 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA9A | 9936 bytes |
font_02_sfnt_off0001106b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1106B | 16792 bytes |
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