MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also features a link farm pointing to compromised WordPress sites, likely serving as a lure or redirect to malicious content. ClamAV detection and ML classification strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=unconditional+contract+buyer+wants+out PDF link annotation
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130123643bc7---linivunufatifaxoletoru.pdfIn PDF document text
- http://auswallendorf.de/userfiles/file/zuguf.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0f2db0b28---55045060412.pdfIn PDF document text
- http://veganogle.es/uploads/ckfinder/files/xivanaralemowo.pdfIn PDF document text
- http://sahamit.net/userfiles/file/47938246816.pdfIn PDF document text
- https://shatalarab-llc.net/userfiles/files/85119988986.pdfIn PDF document text
- https://acconpriti.com/ckfinder/userfiles/files/ramuwekivuluvotakup.pdfIn PDF document text
- http://chpcentre.com/files/file/71232706011.pdfIn PDF document text
- http://galaxyjewel.cn/uploadfile/files/23502527622.pdfIn PDF document text
- https://macjiboter.macjahisa.si/files/file/66760443804.pdfIn PDF document text
- http://ildong.org/sa_upload/userfiles/file/20210908232303.pdfIn PDF document text
- http://studiogalata.it/userfiles/files/18698833068.pdfIn PDF document text
- http://bibrka-school.org.ua/ckfinder/userfiles/files/rivetesodogu.pdfIn PDF document text
- https://htijsr.com/userfiles/file/66676252027.pdfIn PDF document text
- http://biondiairsystem.it/userfiles/files/xedij.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16137d8a585270---xibup.pdfIn PDF document text
- http://tomei4x4.jp/js/upload/files/16623544118.pdfIn PDF document text
- https://gsacademy.ge/uploads/files/segarozujivosubi.pdfIn PDF document text
- https://alexspa.pl/userfiles/file/duvilafo.pdfIn PDF document text
- http://northmarking.com/userfiles/files/xebudadaduzila.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613269d55d63e---24866414858.pdfIn PDF document text
- http://swotaweb.com/img/upload/file/81947604363.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_off0000d9f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9F3 | 17120 bytes |
SHA-256: 56c0e675b16c0aba935cbfe30e0e7d5999777bf4244498924e3dd245855137e8 |
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font_01_sfnt_off000106c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106C0 | 10812 bytes |
SHA-256: 24ef35f1ca041dc43283f29fdfca20b9f2cfa981cf0c3c05a00c67249b1d35dc |
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font_02_sfnt_off00011fe4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FE4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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