MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF contains a link farm pointing to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The presence of numerous links on disposable hosting and the use of 'utm_term' parameters further support a campaign to lure users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/3fb65eccfa34bc6887fb3097102f2afe/52263757861.pdf
- https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/brdo2f1lo01dtbtm3h4nl3sqa7/14681904121.pdf
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/57327546446.pdf
- https://bakwanudang.com/contents//files/21011793793.pdf
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a9c8ee584e4---ludixesibadokojigud.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/2b6a63174479c38326dfaecd22c14a9d/monolerogaxixatudezug.pdf
- http://iphysiology.ru/upload/17440512729.pdf
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/f224579f4468af929b309cf66746158a/xoforalumexidonarep.pdf
- http://rubensova16.cz/files/file/39560174335.pdf
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9a3b65a05---88917059635.pdf
- https://akapacha.com/userfiles/file/40178395392.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c7a468bd2b9---67954886718.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/bd14d052b03cef5ee19a99f09c6ba53a/52292024470.pdf
- http://dmhu.eu/uploads/uplib/file/69726397079.pdf
- http://nexxosrealty.com/userfiles/files/56308268400.pdf
- http://osteriadelcampanile.com/userfiles/files/rutoginisenibokorikofel.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d92d9f9d6dd---86640679620.pdf
- http://altelaw.com/uploads/image/file/24213617658.pdf
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb952271328---5984828669.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/csoqfe18pend0rjgi8g0dg9r6f/dijezoxilu.pdf
- http://rayer.cn/d/files/47602293447.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/16077c75392b33---kekenere.pdf
- https://vicotelecom.vn/static/source/images/file/tavozelitif.pdf
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/38053588858.pdf
- http://ottotech.center/userfiles/file/42700481596.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=relevancy+and+admissibility+of+facts
- 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_off0000e7c0.bin904d1650aecb7647e2afddbdee4f1be82e565bd652fdd98e5fdfbc2fde87cc8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7C0 | 10904 bytes |
font_01_sfnt_off00010103.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10103 | 16792 bytes |
font_02_sfnt_off00011915.bin5b03b31059d2164e22ef6e3e3684a74a4f048dc7495b0a53909522027d926a6c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11915 | 16672 bytes |
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