MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external PDF files hosted on various domains, suggesting a link farm or redirection mechanism for phishing or malware distribution. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this. While no scripts were explicitly extracted, the PDF structure itself likely facilitates the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://philipwillettelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jibawezotafiweme.pdf In PDF document text
- https://xosobacninh.vn/webroot/img/files/revadulewuwififub.pdfIn PDF document text
- http://zaun-produzent.de/userfiles/file/66300116850.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb368876e8---lilaregetomoxadaj.pdfIn PDF document text
- https://cuacuonbentre.com/upload/files/1879853725.pdfIn PDF document text
- https://nusbetaja2.com/contents//files/guxivubi.pdfIn PDF document text
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160716e610130c---nuxegonovunuzagakujirig.pdfIn PDF document text
- http://mimarkamilozkartal.com/userfiles/files/43290771135.pdfIn PDF document text
- https://whitesal.com/data/images/file/6743_20210705151741.pdfIn PDF document text
- http://klinok-saintp.ru/files/mikezebise.pdfIn PDF document text
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/4ahgcqch1qvflt4a5ebcqamko7/peseriduvigagoja.pdfIn PDF document text
- http://sunrui-ti.com/d/files/26260656635.pdfIn PDF document text
- https://mt-creativestudio.com/ckfinder/userfiles/files/87658217792.pdfIn PDF document text
- http://robalton.es/Albums/images/file///56988112996.pdfIn PDF document text
- http://stacjaregeneracja.pl/userfiles/file/5884944696.pdfIn PDF document text
- https://ankaratemizlikcim.com/depo/sayfaresim/file/58095767674.pdfIn PDF document text
- https://oklogistic.lv/upload/file/69891688764.pdfIn PDF document text
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ac53c8b123d---nigupunodukekisir.pdfIn PDF document text
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/ar28dn8jgr3rl0jphn2abvfc7e/kasuviz.pdfIn PDF document text
- http://lyzjkgm.com/d/files/95152069457.pdfIn PDF document text
- http://hilimall.ae/uploads/files/nuloluwozesituli.pdfIn PDF document text
- http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/a0a3251c6bfec097825b5362751624d6/kakif.pdfIn PDF document text
- http://benthanhsgfarm.net/images/uploads/files/96899180975.pdfIn PDF document text
- https://noihoithanhtuan.com/media/ftp/file/10518217350.pdfIn PDF document text
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/fc45b4e91a1382254bf1e9cd01c78f07/44568083435.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=email+etiquette+quiz+pdfPDF 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_off0000cd7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD7E | 10456 bytes |
SHA-256: 7c747925206a39a7c05ef6316e4f33535e5775a4993d02e032ac6b072f49400a |
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font_01_sfnt_off0000e500.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE500 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fd12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD12 | 17332 bytes |
SHA-256: 97755f066f711cbe650f9141ba7956b81d27fb64a69e70750d69165b08d36cb9 |
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