MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised websites, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. The file's structure and embedded URLs are consistent with a campaign that leverages compromised CMS uploads to host malicious documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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://synerhu.ru/uplcv?utm_term=when+did+mayweather+and+pacquiao+fight
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160841392ab265---39453223063.pdf
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/cmb5q1hcri1v8054eptppsfoo7/puluzibufilila.pdf
- http://sun-green.be/ckfinder/userfiles/files/27287237778.pdf
- http://4grd.com/cmsimages/file/43732064947.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16079a0ceb5593---getenosamusod.pdf
- https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/9129761fa2b5ec56ef30a1fd1921f17f/fitolapof.pdf
- https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/30cd6c263b36f85210ee4de9e21bf260/tojefelaxeterujajorubugen.pdf
- http://afghansolar.com/userfiles/file/towixas.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/o0295ivsrbjj34vd6jq9obc303/javixuxesedaba.pdf
- http://royalgroup.at/tmp/kudubevujesozebakirepe.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160c4f475b1ed0---91925357577.pdf
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9806108bc1---davitarol.pdf
- http://augustaelectricalwork.com/editorData/file/fefijarese.pdf
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/084dc99dceafad3ba2583dea491dff7a/wamimuxokowazagatesugixel.pdf
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/8f85f03f04bc8476fead77bfadfd5471/femijikujemidukekazexavob.pdf
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/8jo03rjh9c45csh6jkgfgn91o4/nafizitasivogifezedeseso.pdf
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/2907f5d8cef6d34ef6085e85c67ffed9/bilolifujopeledokume.pdf
- http://youngshiny.com/userfiles/file/1621278078.pdf
- http://hanhthien.net/uploads/file/rexaruz.pdf
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/2c56d28f41a6319ea59e9f2dd7daa35d/zonefewikam.pdf
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160723fac3af36---kadudebobuxupedaruravufe.pdf
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c4fde9b6034---64079786451.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_off0001c2d8.bin3e540696b7e38a595ea54d5e9a7fe710430518a458607b74b0fe7d774d7dc905 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C2D8 | 19756 bytes |
font_01_sfnt_off0001f61d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1F61D | 16792 bytes |
font_02_sfnt_off00020e34.bin33c07d9c9efc09fd85b73d101e7ff402420bb06299ba4277a67672310ce88c80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x20E34 | 11292 bytes |
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