MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress upload storage locations and disposable hosting sites. This pattern is commonly used for phishing or to distribute further malware payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/16og49m4cmnkd1mptbod8eto96/pijimedoliliposunamabawep.pdf
- https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/be5afb1c13b7bef1f92528170dfa41a8/11114565551.pdf
- http://bmcnx.com/userfiles/file/94882038089.pdf
- http://geoscan.it/userfiles/files/19766924693.pdf
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/de4c3b381d16246ed5386770b89a2070/28444308616.pdf
- https://artasedanasingaraja.com/uploadfck/file/60805996272.pdf
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/aa5a580a0ace62ccf690b5d2ca676eb3/josakedazovujekusafexenu.pdf
- https://windsbs.biz/files/file/wujejinularamediga.pdf
- http://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f340813dc2---64372701871.pdf
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd197c448b2---bujitufufipabuvirilowawi.pdf
- https://xn--mgbaf4adbs1bd2i.net/upload/ckfinder/files/bidulabipo.pdf
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f01c5d6c7b---7116996689.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083c31e3eaae---pokibifapikewasuxavo.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d45413b9aa---97614697159.pdf
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608d959fe0e9f---82133625892.pdf
- https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/f3ada4fc4706a1485ffa5db4a9ff38e8/99558120083.pdf
- http://bfr-bialapodlaska.pl/userfiles/file/piwudixajifozajosanu.pdf
- https://equator-maritime.com/userfiles/file/zotalidivebome.pdf
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b57af9f1738---garusevodonududotonera.pdf
- https://go2germany.ru/files/file/94892607781.pdf
- https://kede.org/userfiles/file/15688745831.pdf
- http://langeline.com/ckeditor/upload/files/bekikipazu.pdf
- http://sahamit.net/userfiles/file/63461928352.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/1djspfilkc989vivulftcoo4q7/31835889725.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=c+%26+l+well+drilling
- 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_off0000b8cc.binfe4a9ad32d6d12da45ce8861a1e6e511df5579fd33367a5c4d1c9e774d301804 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8CC | 9104 bytes |
font_01_sfnt_off0000cb9d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB9D | 16792 bytes |
font_02_sfnt_off0000e3af.binf64c231a31b28b44fae9da56235aa055ff76aff45be75950b7fcb0d92851c950 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3AF | 15560 bytes |
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