MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, with multiple heuristics indicating it's a link farm pointing to potentially compromised websites. The URLs extracted suggest a phishing or malware distribution attempt, likely delivered as a spearphishing attachment. No scripts were extracted, but the PDF structure and URL patterns are indicative of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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=eset+mobile+security+full+apk PDF link annotation
- http://sdv.sk/userfiles/articles/file/57464272520.pdfIn PDF document text
- http://cosonhuath.com/hinhanh_fckeditor/file/gixufulutamawawupa.pdfIn PDF document text
- https://jagamimpi.com/contents/files/kavarenebuz.pdfIn PDF document text
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/din65k0s4l1hna1vgda28dco63/guviz.pdfIn PDF document text
- https://duproject.com/uploadEditor/files/20873860705.pdfIn PDF document text
- http://cuacuonductudong.com/upload/files/11342731591.pdfIn PDF document text
- http://nhadatv.com/webroot/img/files/rudexafituzabixar.pdfIn PDF document text
- http://turystyka.powiatlubartowski.pl/admin/ckfinder/userfiles/files/2259948524.pdfIn PDF document text
- http://askaudit.ru/price/41043487023.pdfIn PDF document text
- https://pima-alarms.rs/slicice/file/13645256421.pdfIn PDF document text
- https://finliz.lt/i/File/tizunura.pdfIn PDF document text
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c6fc8cc643---moxokulasozigomepuluzuwot.pdfIn PDF document text
- http://dobre-jaja.com/Upload/file/bilamadejopuzokagowoz.pdfIn PDF document text
- https://penzion-pod-rozhlednou.cz/img/file/86460975049.pdfIn PDF document text
- http://gemmacapitalgroup.com/foto/file/muzelefari.pdfIn PDF document text
- http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.net/ckfinder/userfiles/files/gafijinikozezafukarixux.pdfIn PDF document text
- https://kmkmekanik.com/upload/ckfinder/files/93899454379.pdfIn PDF document text
- https://bawaniint.com/ckfinder/userfiles/files/21389581730.pdfIn PDF document text
- http://linza-market.ru/upload/files/86237613006.pdfIn PDF document text
- http://aa-nusd.jp/wigevimamamo.pdfIn PDF document text
- http://cualuoiskydoor.com/webroot/img/files/55680741834.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/4n8jlm24k1912bko666qfjgrm7/45608218813.pdfIn PDF document text
- http://chekeeh.ir/basefile/chekeehir/files/bosafokinimezofun.pdfIn PDF document text
- http://motivationandmomentum.net/ci/userfiles/files/senifinojukipijubebonu.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_off0000b310.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB310 | 10964 bytes |
SHA-256: 19c894d86452a43fe43a3bfa63d3fc534e7debec15129c446c67e58c6d10ccba |
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font_01_sfnt_off0000cc5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC5F | 15776 bytes |
SHA-256: bf07c8e3813f9f21b07d5017b793a2fab36714c1a60b1f9ade861ebd8a3bb236 |
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font_02_sfnt_off0000f425.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF425 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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