MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Numerous heuristics indicate the PDF functions as a link farm, directing users to various external websites, some of which are hosted on compromised WordPress installations or disposable domains. The embedded URLs suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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=u+dictionary+mod+apk PDF link annotation
- http://sys-svinding.dk/userfiles/file/vudowagozot.pdfIn PDF document text
- https://suny.cz/files/file/rawapoteguzexaviferoz.pdfIn PDF document text
- http://7seapharmtech.com/Uploadfiles/files/10877649217.pdfIn PDF document text
- http://studiolauramoschini.it/userfiles/files/zufefizume.pdfIn PDF document text
- http://signfabapp.com/ckfinder/userfiles/files/60386093724.pdfIn PDF document text
- http://musikpark-live.de/userfiles/file/81609625245.pdfIn PDF document text
- http://gardens-spa.com/user_pict/file/tajiteb.pdfIn PDF document text
- http://destock-groupe.com/userfiles/file/35909943672.pdfIn PDF document text
- http://foodchemsino.com/d/files/44777813016.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cb28e132d9---fupekel.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613e4fd439a00---36652728007.pdfIn PDF document text
- http://sklepjola.pl/userfiles/file/jamojepulejutesibe.pdfIn PDF document text
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16149a149678fc---vapodugopotidotopelomu.pdfIn PDF document text
- http://watthaistuttgart.de/userfiles/file/jipukenobipunojafakemono.pdfIn PDF document text
- https://dianthusindustrial.com/resimler/files/83314875228.pdfIn PDF document text
- https://adikkedua.com/contents/files/61167002599.pdfIn PDF document text
- https://eijo.in/ckfinder/userfiles/files/fuduborajigisalaredaro.pdfIn PDF document text
- http://csim.jp/ckeditor/uploads/files/47637062824.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/4ac40e4671b4eb435a959250eaa4f58b/vefafatowofowopigoga.pdfIn PDF document text
- https://airin.lv/images/userfiles/file/bowikixomalovokezasej.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161344f83e804a---52509048894.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000af51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF51 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c768.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC768 | 10540 bytes |
SHA-256: 6e12b5128ac658f89d4bd6c1c40557e8aeb9aea060dc9108b80f6451d259598e |
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font_02_sfnt_off0000df6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF6C | 14532 bytes |
SHA-256: 83863ac34be45b1d1477f9677e6ddfe5f66387bb5536cdbd94a3743a9aa66929 |
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