MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as a phishing trojan and ML classifiers indicated a high probability of maliciousness. Heuristics identified the document as a link farm pointing to numerous external URLs, many hosted on compromised or disposable domains, suggesting a phishing or malware distribution scheme. No scripts were extracted, but the overall structure and URL patterns strongly indicate a malicious intent to redirect users to harmful sites.
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://irlanc.ru/uplcv?utm_term=nasugbu+zip+code PDF link annotation
- https://biorenta.lt/ckfinder/userfiles/files/85001039420.pdfIn PDF document text
- http://mimarathi.live/assets/ckfinder/core/connector/php/uploads/files/xitumokajal.pdfIn PDF document text
- https://itscebu.com/upload/file/20210902190635.pdfIn PDF document text
- https://hotelexpert.ro/uploads/files/72194900592.pdfIn PDF document text
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab868c2186---miweweselub.pdfIn PDF document text
- https://glaze-metalart.com/upload/files/texabutenarolawog.pdfIn PDF document text
- http://gospel-pour-100-voix.com/fichiers/newsletter/file/xaragefuxeziduvipapadof.pdfIn PDF document text
- http://immobilieninvestors.de/userfiles/file/6059768215.pdfIn PDF document text
- https://ever-progress.dacola.com/upload/files/panojeke.pdfIn PDF document text
- http://xn--3e0b556bhrbowi6undva.com/ckupload/files/numivu.pdfIn PDF document text
- http://transchem-tech.com/Uploadfiles/files/fepazefim.pdfIn PDF document text
- https://smshealthcareservices.com/ckfinder/userfiles/files/kevamirejubuzixu.pdfIn PDF document text
- http://kazuma.ru/ckfinder/userfiles/files/12082780274.pdfIn PDF document text
- https://www.aifimm.it/admin/inc/ckfinder/userfiles/files/tetebepupiguxonokizame.pdfIn PDF document text
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613271f392eb3---10927196696.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/08aaa106b715f2c4ea27d30faf9ffbad/26122292458.pdfIn PDF document text
- http://www.jysunshine-hotel.com/up_files/file/12706052326.pdfIn PDF document text
- http://baohanhranghm.com/upload/img/files/55375531450.pdfIn PDF document text
- https://babetravelling.com/ckfinder/userfiles2/files/13477250045.pdfIn PDF document text
- https://www.la-melodie-des-saveurs.fr/ckfinder/userfiles/files/25522768527.pdfIn PDF document text
- http://cokhitienvuong.com/uploads/files/juruvubifanibetek.pdfIn PDF document text
- https://we-plus.tw/ckfinder/userfiles/files/57067076328.pdfIn PDF document text
- http://szyuangang.com/UserFiles/file///50845842609.pdfIn PDF document text
- https://suavitinhtannha.net/upload/files/5193141727.pdfIn PDF document text
- http://volkshilfe-ktn.at/images/content/files/7606460979.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_off0000dfca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFCA | 10616 bytes |
SHA-256: 4b836598d6cb9c561c74dea61b9c51318b2866e6c1ed547d2696aed548261c4a |
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font_01_sfnt_off0000f7c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C4 | 18156 bytes |
SHA-256: 3081374684b8320091b8518ef529e362e874d383d207309c3dbf6860c7b36e5b |
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font_02_sfnt_off000126d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126D1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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