MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting, indicative of a link farm designed to redirect users to malicious content. The presence of external URI heuristics further supports the malicious intent of directing users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://inwebjor.ru/uplcv?utm_term=how+to+stop+background+apps+in+android+phone PDF link annotation
- http://www.enfersalus.com/ckfinder/userfiles/files/fosugififikasa.pdfIn PDF document text
- http://pusancard.com/userData/board/file/xowufuxusuj.pdfIn PDF document text
- http://emiem.pl/public/upload/ckfinder/userfiles/files/8124772692.pdfIn PDF document text
- http://446888.top/userfiles/file/484381628.pdfIn PDF document text
- https://regionalhealthprogramsww.com/images/file/38329790553.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a4f22afc8920bf4b23d2c7ab0fd6f5cc/felike.pdfIn PDF document text
- http://milkexim.ru/imgeditor/file/9734758313.pdfIn PDF document text
- http://klubbelgickychobrov.sk/editor_uploads/files/zifipebiwarad.pdfIn PDF document text
- http://xn--80aiddhbkcq5bcaz.xn--p1ai/upload/files/17776265318.pdfIn PDF document text
- https://gifarlcm.com/upfiles/editor/files/64374203911.pdfIn PDF document text
- http://microcement.ua/userfiles/file/69769046605.pdfIn PDF document text
- http://chhattisgarhsanskritboard.in/sharpinstitute/images/files/5143239161.pdfIn PDF document text
- http://heldermusic.nl/ckfinder/userfiles/files/53278145277.pdfIn PDF document text
- https://watertorens.nl/userfiles/file/sojafisovedevu.pdfIn PDF document text
- http://artecgroupservices.com/imagenes/file/jexuden.pdfIn PDF document text
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/ddb41104fb7872ef2002b9cca79c74f5/wexawurisuk.pdfIn PDF document text
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144b9ba4b57a---dinepagivixe.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613b91ce0b19e---pejozowiludibafu.pdfIn PDF document text
- http://iowatriallawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/58463772506.pdfIn PDF document text
- https://kompaspt2.com/contents/files/71046447989.pdfIn PDF document text
- http://krajinar.cz/soubory/files/nuvijinitenenib.pdfIn PDF document text
- http://vattuxaydunghl.com/userfiles/file/42807688128.pdfIn PDF document text
- https://denimder.org/resimler/files/vujafameniradozato.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/37129e0fb65dc887ffb74840ac00e2f5/24383730582.pdfIn PDF document text
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/n5q2lvv3hc2eg025e0n4kfgi47/94568718271.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16131b72802412---8970824909.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_off0000df13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF13 | 17904 bytes |
SHA-256: e2851d242e8b53260122a1f93a5784bc6cc0ab26664ba77f530218d56dd36fc5 |
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font_01_sfnt_off00010e3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E3A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012651.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12651 | 11156 bytes |
SHA-256: 0795a4ef07c886cb08e0ef1d72a8f12f3411e1bedbfafbef7d3df1cc56aa0ddd |
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