MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by ML classifiers and ClamAV as malicious, indicating it is likely a phishing or trojan delivery mechanism. The document body, though heavily obfuscated, combined with numerous embedded URLs pointing to various domains, suggests a link farm designed to redirect users to malicious content. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the document is part of a campaign to host and distribute malicious files via compromised websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://inwebjor.ru/uplcv?utm_term=explanation+letter+to+employee+pdf
- http://pokeocncafe.com/uploads/files/napusepaxekogineduzegeta.pdf
- https://www.kuwaitpolyurethane.com/ckfinder/userfiles/files/74529255683.pdf
- http://brilspa.ro/userfiles/file///filulalilinofu.pdf
- http://sbriz.ru/userfiles/file/saporu.pdf
- http://amirafouad.com/uploaded_files/file/dipepaxebosojajivobe.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/46efd54cd841419c12f8863319f3c530/wosijubetibipapelexavufe.pdf
- https://cvconstructionsgoa.com/pharma/admin/userfiles/file/20250389688.pdf
- http://yossy.biz/userfiles/file/86775506126.pdf
- http://hanaelectric.com/userData/board/file/netedupar.pdf
- http://jinistudy.com/_UploadFile/Images/file/36867357434.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/d6ql3p8ubb24oubi0m8j0p1456/gomuxujemovazakitu.pdf
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/be92cc9f63aad97cc8af47d8137b4651/jixudegavowowu.pdf
- http://hgbs.de/userfiles/file/97854036154.pdf
- https://www.ergunaygoren.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d88b22e081---97004729465.pdf
- http://vnos.vn/app/webroot/uploads/files/22750871161.pdf
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/29fed027669a32f01398c24c98103ecf/21043115824.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c5d7da79235---datiti.pdf
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/cnh0qvkvvtrd4dhevajmfs33m6/rufusaxaletexuva.pdf
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/oki07unkcak03nqtu78feih8if/26216469881.pdf
- https://bilalyapidekorasyon.com/userfiles/file/nazutonojadejuweva.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3723846c78cbfaa394b781d9771295b8/17367437189.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce86037331d---66954141170.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_off0000c0b4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0B4 | 16792 bytes |
font_01_sfnt_off0000d8cb.bin1f54cba33859a06eeda06eb4f726da23bd04544e9f8a78ba266628bedaee2870 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8CB | 10688 bytes |
font_02_sfnt_off0000f14e.bin353b1d7df12e2e74cb4deacad519e37e91bedceaf4fb34e8723363a3dee43c7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF14E | 16940 bytes |
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