MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs that form a link farm, likely intended to direct users to phishing sites or download further malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for these links, suggesting an attempt to evade detection. No scripts were extracted, but the structure strongly suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 https://irlanc.ru/uplcv?utm_term=diesel+brooder+for+poultry+price
- http://cfh2.com/clients/d/d2/d2a7b52150a7a947468b52e9b7560e3c/File/29802793014.pdf
- http://firewheels.pe/userfiles/file/3799803307.pdf
- http://vivo-mebel.ru/upload/file/36484415801.pdf
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de9229301db---15437961966.pdf
- https://webhosting4.net/media/file/lemezixebuvilewejalegit.pdf
- http://gdlianyu.com/uploadfiles/file/93052262130.pdf
- http://kovove-ploty-brany-zabradli.cz/UserFiles/File/55297797416.pdf
- https://eurouniversal.eu/ckfinder/userfiles/files/81517845064.pdf
- http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zeragamezelekasa.pdf
- http://stin-verdon.fr/assets/Image/files/gowugizi.pdf
- https://viscom.bg/uploads/wysiwyg/files/24573132797.pdf
- http://luxcottage.ru/stroykamen/userfiles/file/vegemifeputezopifux.pdf
- http://anshan56.cn/userfiles/file/1629834230360723278.pdf
- http://sherwoodonionfestival.com/ckfinder/userfiles/files/38208176289.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/i7clo2o11ipanit330iilqffu6/70912754719.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5af3a0246c---55615436565.pdf
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160bf6ad7b3e21---36773316741.pdf
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/7b1cdb7a943a15f23f227c6eff22b3ab/ziregaleku.pdf
- http://rowadhr.com/app/webroot/upload/files/50700016885.pdf
- http://alfavit.tv/userfiles/file/gapemabonona.pdf
- https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/ba6lgq6gkgmnhe97hha455vm40/97204981748.pdf
- http://angkoronetour.com/userfiles/file/lefibako.pdf
- 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_off0000b5f5.bin0c7f7053f374bf1d238804c6669d1414647546abd4ed349c463e501e97aaa10a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5F5 | 10700 bytes |
font_01_sfnt_off0000ce74.bineab35fd86e10e68fe0b0f43ed51b2dc1e976989f90acc32519b3c218df2fcbd1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE74 | 14984 bytes |
font_02_sfnt_off0000f4cb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4CB | 16792 bytes |
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