MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some of which are hosted on compromised CMS uploads or disposable domains. The embedded URLs suggest a phishing or malware distribution attempt, likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://777mto.info/contents/files/87633427488.pdf In PDF document text
- https://sieuthimaytinhcu.vn/upload/files/bisoxebatu.pdfIn PDF document text
- https://a2designbg.com/userfiles/file/tekabotorivu.pdfIn PDF document text
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/018143c19abf8fe32f65d7730ec4a3b3/4849141595.pdfIn PDF document text
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161392670afed2---27691909562.pdfIn PDF document text
- http://cpgny.com/userfiles/files/wirogipojapaxupurawod.pdfIn PDF document text
- https://e-tta.com/app/webroot/userfiles/files/kakiburinu.pdfIn PDF document text
- https://abctranslink.com/ckfinder/userfiles/files/18881992590.pdfIn PDF document text
- http://unityproductions.com/upload/files/guwiwuleros.pdfIn PDF document text
- http://tmacfashion.com/ckfinder/userfiles/files/zuzupisotepab.pdfIn PDF document text
- http://jump360.co/upload/files/20210902041241.pdfIn PDF document text
- https://magiccat.pro/ckfinder/userfiles/files/deluxebomodazaveziji.pdfIn PDF document text
- https://www.aifimm.it/admin/inc/ckfinder/userfiles/files/65621622830.pdfIn PDF document text
- https://hgb.se/filer/file/vatulizizifore.pdfIn PDF document text
- http://yuc-fac.com/uploadfiles/20210907014426.pdfIn PDF document text
- https://adesso-moosburg.de/images/file/jilulidagilaxemupivaxovu.pdfIn PDF document text
- http://sculecuacumulator.ro/app/webroot/files/userfiles/files/36965459101.pdfIn PDF document text
- http://syekp.gr/sites/default/files/file/palewutefevijipinuko.pdfIn PDF document text
- http://bushurov.ru/images/files/63382229783.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136fc66a8ae9---robixividuvamupeg.pdfIn PDF document text
- https://mashtalkandil.com/userfiles/file/80212586212.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=gta+liberty+city+mod+apkPDF 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_off0000d1d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1D9 | 16840 bytes |
SHA-256: 449802508b33e33ae8ed38ac18d6dbd89c3cf17627dc9b63fecc32798a1bbdbf |
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font_01_sfnt_off0000fd40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD40 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011557.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11557 | 10788 bytes |
SHA-256: f74491b29db33b315ba25546391a3b7ca03c795687d065cd4c4cab385b9c670c |
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