MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to compromised WordPress uploads and other disposable hosting, suggesting a phishing or malware distribution scheme. The presence of multiple external URIs and a link farm heuristic strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://vector-luczak.pl/new/fck_user_files/file/48745369210.pdf In PDF document text
- https://elemonbg.com/Files/File/10604277866.pdfIn PDF document text
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/082c861f10e8e9408f7a8a4b4c9fbf44/45498373106.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d67e54c0f6---bukipusakenomakomowef.pdfIn PDF document text
- http://szhlfz.net/upload/42326184164.pdfIn PDF document text
- http://kamnitikamini.si/upload/files/14351094770.pdfIn PDF document text
- http://cegled.varosom.hu/userfiles/files/litobexizemelokirud.pdfIn PDF document text
- http://www.dogwoodagility.nl/ckfinder/userfiles/files/84493767063.pdfIn PDF document text
- http://xinyuemu.net/assets/202109/files/20210913052353469418.pdfIn PDF document text
- http://staropolski.net/Upload/file/vexelutanazagagezaj.pdfIn PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/276b3e7567a7fffa77441fa52be22dea/30461890269.pdfIn PDF document text
- http://www.frank-diagn.hu/userfiles/files/69323235817.pdfIn PDF document text
- https://gangnampools.com/contents/files/70344021904.pdfIn PDF document text
- http://www.gulbaharsigorta.com/contentData/file/luzoroxa.pdfIn PDF document text
- https://ibextrail.com/editor-images/16476582762.pdfIn PDF document text
- https://homestayhoian.thamtuddt.com/uploads/image/files/12443388470.pdfIn PDF document text
- http://escritacontabilidade.net/fotos/news/file/puvovudaf.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16140f5b9af862---rugotukonex.pdfIn PDF document text
- http://parbatsamajjapan.com/img/files/files/bezixofijexovawe.pdfIn PDF document text
- https://larrialdiak.es/files/galeria/files/55112271166.pdfIn PDF document text
- https://gelblighting.com/userfiles/files/52533076378.pdfIn PDF document text
- http://emilymillerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sepewodomanaledu.pdfIn PDF document text
- https://shevtsov-art.com/uploads/files/72203310710.pdfIn PDF document text
- http://avvocato-callegaro.it/public/file/61672746446.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=dbz+android+7PDF 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_off0000cf06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF06 | 10048 bytes |
SHA-256: 37f9f3f78b683573025988abea9a4928a7989c89957a9e58f8410947d3c26c80 |
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font_01_sfnt_off0000e571.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE571 | 20948 bytes |
SHA-256: 784373f809949676538e08c2cdd9162a7f8801da6d817446c7303d04f909ae92 |
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font_02_sfnt_off00011c47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C47 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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