MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The file's structure and URL patterns are consistent with a malicious document used as a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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://ketchas.ru/uplcv?utm_term=parts+of+speech+grammar+exercises+pdf PDF link annotation
- https://dgaspcsm.ro/ckfinder/userfiles/files/boxenitosomiko.pdfIn PDF document text
- http://rrbrentacars.com/files/others/doxuronalodaziledilum.pdfIn PDF document text
- http://sun-dr.com/uploads/files/202108172334084966.pdfIn PDF document text
- https://chmelo.hu/sites/default/files/file/sozuki.pdfIn PDF document text
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e90c1b3df40---munumururot.pdfIn PDF document text
- https://tonwen.org/userfiles/file/55591578748.pdfIn PDF document text
- https://kovtec.pl/eurostyl/photos/file/nupalexuzowe.pdfIn PDF document text
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/221088ec7cafee58d372bb0fa0ce9310/27992125735.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606eb445b3481---71200843522.pdfIn PDF document text
- http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b0a9f9acd9f---25772791268.pdfIn PDF document text
- https://centrorevisionimonregalese.it/file/72708883072.pdfIn PDF document text
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609437242aded---nuvonesajar.pdfIn PDF document text
- https://craftsmancuttingdies.com/wp-content/plugins/super-forms/uploads/php/files/0048c1c9e886ce76ff97ef438ede4cb4/poruwu.pdfIn PDF document text
- https://agronlogistics.com/userfiles/files/gerora.pdfIn PDF document text
- https://bulgariapools.com/contents/files/sikajoju.pdfIn PDF document text
- http://talleresjpg.es/img/file/69933036659.pdfIn PDF document text
- http://korea-seals.com/ckfinder/userfiles/files/12843449202.pdfIn PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/5ef580d421976506b7b925591132f1c3/86971505838.pdfIn PDF document text
- https://copab.tn/216mag.svn/uploads/files/purazoxexanobetu.pdfIn PDF document text
- http://viprealestatebrokers.com/userfiles/files/89049171656.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/6cab61ddb0adb4000992150ca8f95ac5/wasajarasonugum.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_off0000eb19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB19 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001032b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1032B | 19220 bytes |
SHA-256: a6f6edea028c358a2b14f5036905002e9ef24d9ea7541b0d9a829bff3a31eeb2 |
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font_02_sfnt_off00013508.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13508 | 11020 bytes |
SHA-256: d9b173d61234488f9c9b9f2e9c6388a1b9c13be631e75a03c6a0e198984c7c4b |
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