MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to host malicious content. The 'SE_CALLBACK_LURE' heuristic indicates the document likely prompts the user to call a phone number, a common tactic in phishing and tech-support scams. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 8
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://client-sms.com/ckfinder/userfiles/files/wirubeg.pdf
- https://altonika.pro/files/fck/file/46424833976.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf9f49824b0---71312464461.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160710eebb4657---36091466018.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/556ede012140b2e6219f745ed6d65446/getotoporilevizemolexufaw.pdf
- http://fitviewer.biz/files/file/damufomafifilaxafuziko.pdf
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/04af673baf81e62c4e64b26744678ce2/34124246511.pdf
- https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/h2hrbc1mvr12g9on2dn4fulf36/14220443115.pdf
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160817a696e824---xefumadumuza.pdf
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa79999e2a1---66695568815.pdf
- https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/a02b86c4c1a7459f3547755a833d7601/ledak.pdf
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/qgfrpfq4car1h9qu56lkkbvn8i/momigutov.pdf
- http://angeladaniel.eu/uploads/files/zepesozekefe.pdf
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a728bd08be7---fepaz.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f5db7051a---15159392180.pdf
- http://candientuvibra.com/images/file/33440658136.pdf
- http://csc0851.com/userfiles/file/20210615203449_b2fbof.pdf
- https://agentcctv.com/userfiles/file/23897683240.pdf
- http://grandchainfamilyfoundation.org/clients/85333/File/dufedabibixi.pdf
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608da27b797e7---zisele.pdf
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/5c90bb2bd0afd0f68b9c71d59ee13fa7/56314018434.pdf
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/a43c1e8149a81d8873bbb67925bde419/lazamadilunetibupuwigak.pdf
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/9bad835a0e87f496887e191b31142bdd/kezidenujipi.pdf
- http://praguetransfer.com/files/file/94897401097.pdf
- http://alexhofford.com/temp/files/file/16627358056.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=can+someone+see+a+screenshot+on+instagram+post
- 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_off0000e81b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE81B | 16792 bytes |
font_01_sfnt_off00010032.bin56bdd48125bc675883518cd351a5a02cdf6d0bc61366484b7d6642f133bd6b08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10032 | 10808 bytes |
font_02_sfnt_off000118f2.bin8d2bf7dec1d39534c7f365105ec8ce45cdc8f4400120002b496372351a7b890f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118F2 | 17056 bytes |
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