MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting it functions as a link farm designed to redirect users to malicious sites. The presence of these links and the overall structure strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://wastran.ru/uplcv?utm_term=english+file+third+edition+workbook+answer+key PDF link annotation
- http://pscemetery.com/userfiles/file/mekobunidi.pdfIn PDF document text
- https://iamtimeshare.com/userfiles/file/94316404815.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/161394ec35fecc---nagutaraj.pdfIn PDF document text
- https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/14360a93cd7df94f1732763d6d588e32/lizex.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134624252fdb---35483100662.pdfIn PDF document text
- http://www.bc-arman.kz/ckfinder/userfiles/files/86300170785.pdfIn PDF document text
- http://nickelsgrafikdesign.de/ckfinder/userfiles/files/vopozuma.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/1d45631f7adc8e5d9a162f652b470332/13284194670.pdfIn PDF document text
- https://windsbs.biz/files/file/97751907493.pdfIn PDF document text
- http://xn--72c7caerxx0d3a9eve.com/UserFiles/File/3003042666.pdfIn PDF document text
- http://daiichihousing.net/uploads/news_file/8322329416.pdfIn PDF document text
- http://islenapuntos.com/campannas/file/65002479817.pdfIn PDF document text
- http://noithatphathuy.com/Images_upload/files/gasute.pdfIn PDF document text
- https://mumegram.com/userfiles/file/71194766852.pdfIn PDF document text
- https://thokhoavietnam.com/upload/files/20073642529.pdfIn PDF document text
- https://hizlipin.com/calisma2/files/uploads/34037672.pdfIn PDF document text
- http://rs-entp.com/upload/file/rikif.pdfIn PDF document text
- http://sooam.com/files/fckeditor/file/9330371836139a4b64555a.pdfIn PDF document text
- https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/377174bf5f7fa6ba427a16112666f3b4/93064558948.pdfIn PDF document text
- http://rejs2013.cycling-recycling.eu/imgturysta/files/xatikaduxiwutekavox.pdfIn PDF document text
- https://musikkursus.dk/userfiles/file/12879769702.pdfIn PDF document text
- http://apartmany.cucoriedka.sk/data/files/90048565247.pdfIn PDF document text
- http://vnndt.com/Images_upload/files/93204822900.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_off0000bbae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBAE | 11048 bytes |
SHA-256: 482258921d9ebd037a5495a145ab05ccf4754c286bee210c3854e3b732427464 |
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font_01_sfnt_off0000d52b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD52B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ed3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED3D | 18548 bytes |
SHA-256: edda12683c0c9f06dd01c655ed8d6185ea87b3f42e9f94fd73ffc7a1ed5928cf |
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