MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and numerous external URLs, many of which point to PDF files hosted on potentially compromised websites. This suggests a link farm or SEO manipulation tactic, and the ClamAV detection as 'Pdf.Phishing.Trojan' indicates a malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://szentimresiklos.hu/upload/file/2816331297.pdf
- http://mynigaoe.com/upload/file/20210911045920.pdf
- http://orderbestwings.com/uploads/files/12158093299.pdf
- https://cuatudongnhatrang.com/uploads/files/25449807849.pdf
- https://educhina.mn/editor/files/4461238560.pdf
- http://associatedreclaimed.com/userfiles/files/88243197218.pdf
- https://ncltandatbar.com/home/ncltandat/public_html/dowalumniusa/ckfinder/userfiles/files/zulexo.pdf
- https://cyberbirddog.com/userfiles/files/59466573010.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a94a6aa363---jilos.pdf
- http://gursakaryahukuk.com/images/file/jupidivovixazabegiwomevaw.pdf
- https://heritran.vn/uploads/news_file/6708880277.pdf
- http://tuzvedo.hu/elemek/file/xofibefenudusutafajel.pdf
- http://losmarinoslanzarote.com/marinarubicon/admin/file/benax.pdf
- http://lexus-custom.com/js/upload/files/vaxebijasuxina.pdf
- http://gamboeng.com/assets/ckfinder/userfiles/files/95161462392.pdf
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/bc4d03c4fc10abcba587fde2917f6aa2/71653446676.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fed61c24a6---fitowojag.pdf
- http://zhhyhb.com/uploadfiles/files/wevida.pdf
- https://clic-essc.ch/ck/ckfinder/userfiles/files/libopalilupezopuzugikef.pdf
- https://pnvvr.ro/userfiles/file/linijazok.pdf
- http://sjanzee.nl/file/42895706411.pdf
- http://kite-surf.sk/files/mebib.pdf
- http://elistaprezentow.pl/userfiles/file/52741248987.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=youtube+video+converter+app+for+android
- 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_off0000e898.bincde3be9938e96094abb42c0ce45d1d1cc8bf83538e3ae974c7917bf21d900093 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE898 | 16732 bytes |
font_01_sfnt_off000113fc.binae78f0cae513b21f3363e8922d1aea7e14a01f46783e4f1b0899898f4b15d3d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113FC | 10688 bytes |
font_02_sfnt_off00012c66.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C66 | 16792 bytes |
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