MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as a malicious PDF by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised websites, suggesting an attempt to distribute malicious content or phish users. The presence of external URIs and a link farm indicates a likely spearphishing attachment vector. No scripts were extracted, limiting the analysis of specific malicious behaviors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
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://momsystem.ru/public/file/30469936810.pdf In PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ad7e7695b3---feraga.pdfIn PDF document text
- https://accounting789.com/ThImg/file/665982064.pdfIn PDF document text
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ecade8df1b---6531500973.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa35bb0676---retalixijawowejif.pdfIn PDF document text
- http://lltsg.com/uploadfile/file///2021061919542444.pdfIn PDF document text
- https://ebooksweb.net/files/file/mawotolujowemorab.pdfIn PDF document text
- https://asiarsolutions.com/userfiles/file/takudopikotasi.pdfIn PDF document text
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a843e225f8e---sujatemewogodasuwijavi.pdfIn PDF document text
- https://aeternoplanning.com/ckfinder/userfiles/files/lodudawovumososajavugebez.pdfIn PDF document text
- https://workinhotel.com/upload/fckfile/15920491465.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/37575297497.pdfIn PDF document text
- https://turismopontevedra.com/ckfinder/userfiles/files/vivujekelolixowafila.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/a6c411af156a5655c9b4ebdae1cc2479/71089893883.pdfIn PDF document text
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac599e6123f---titifoboxadoxuz.pdfIn PDF document text
- http://vstarmp.cn/upload/files/20210710_142116.pdfIn PDF document text
- http://ndt-tl.ru/upload/file/varomapaferovikuwimodir.pdfIn PDF document text
- https://kermoulin.com/userfiles/file/tilakud.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d03ec372836---fupakowobejisufim.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984ff66dddb---zosapivewapamobefula.pdfIn PDF document text
- http://somersetcountybar.org/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/99586309014.pdfIn PDF document text
- http://bernardthevenet.fr/ckfinder/userfiles/files/35931806884.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607ecedc63eae---zosuduwovol.pdfIn PDF document text
- http://urbancollab.com/userfiles/Proj_Name//files/57112063129.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607df6703f037---39483637381.pdfIn PDF document text
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8f63e021c---97993132547.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=hbo+go+premium+account+generatorPDF 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_off0000f1b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000109ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109CA | 17512 bytes |
SHA-256: cf497a02d9ec6322a09da8899983564b0c5fbfc74283de1e5f74020dc659cbf7 |
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font_02_sfnt_off000137ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137AD | 10736 bytes |
SHA-256: a9866bb025df1a5ffe17e23e493970999365eefbb4df9c12dad54c8bfe9778ce |
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