MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, with heuristics indicating it is a link farm pointing to compromised WordPress uploads and disposable hosting. The presence of 'invoice' or 'payment' language further supports a phishing lure. While no scripts were extracted, the numerous embedded URLs suggest an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 http://theonejsc.com/userfiles/file/narup.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf66b183539---xibudelat.pdf
- http://millecolori.it/images/file/kiledesosakekizanegat.pdf
- http://optimumnieruchomosci.pl/uploads/userfiles/files/buvarem.pdf
- https://rubenoferro.com/userfiles/file/borarixapabanul.pdf
- http://domgr11.ru/uploads/files/luwawalekenasirofoj.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160719137b533e---retexagivatimutonidad.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4708abe4dc---43293421719.pdf
- https://nhathuydesign.com/wp-content/plugins/super-forms/uploads/php/files/955ls01ve35c60uspaerpr3g8s/xovesaliviwesumep.pdf
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eaa6120301---65471486694.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/0563kqf5ai62lg5el2s7jeuq04/59819463984.pdf
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160ac04a69e067---63716177208.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098c63d5b142---nozifipamexelebagadevejun.pdf
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/5eb18b85888ecdf44cf4bb444189e03c/21519737425.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608eea27c032f---11751801448.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083b0de815f2---tidelafefugojepafepi.pdf
- http://bagiez.com/userfiles/file/pegegeroneki.pdf
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c14c7f9a861---41373635462.pdf
- http://pobierzplik.pl/uploads/files/10677457890.pdf
- http://alphabodysupplements.com/newerac2c/userfiles/file/nikomudigelod.pdf
- http://www.rodnolespropertymanagement.com/siteuploads/editorimg/file/vegebugotizewogorexil.pdf
- http://teplospectr.ru/images/files/49148229464.pdf
- https://birudongker.com/contents//files/rolipuluzifejafipemokase.pdf
- http://anandtouristcorporation.com/uploads/95832745636.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=difference+between+fair+value+and+cash+flow+hedge
- 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_off0000e621.bin80928ed579352c5ccc953a6f7da275eb6936a1e2a3fc57df65e9cb3839fc4c2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE621 | 16288 bytes |
font_01_sfnt_off00011035.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11035 | 16792 bytes |
font_02_sfnt_off0001284c.bine84688cdf7f4a51c3a48fa0d4c182f8f4d09129ecdc952af570fa0f22fdc252c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1284C | 11148 bytes |
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