MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and link farm indicators strongly supports a phishing or malware distribution attack pattern.
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://ketchas.ru/uplcv?utm_term=widget+ios+for+android PDF link annotation
- http://www.satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/kojapakubaxurunod.pdfIn PDF document text
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/62589ffdb7ec0c82d604a12c9c534b2d/38797092542.pdfIn PDF document text
- http://xn--spreewaldpension-lbben-9lc.de/meineBilderAlbertGrundschule/file/fajivodomi.pdfIn PDF document text
- http://zaiger.ru/img/file/87443639938.pdfIn PDF document text
- https://xn--b8qxb801j.tw/upload/files/38099489075.pdfIn PDF document text
- http://ranaghatpchsschool.org/userfiles/file/jifubemafatu.pdfIn PDF document text
- http://yung-shun.com/userfiles/file/68786901600.pdfIn PDF document text
- https://bandai-k.com/userfiles/file/10376786509.pdfIn PDF document text
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/52fb47ed7f2a8d2f46fab4975040edd4/66758120756.pdfIn PDF document text
- http://vlajamo.cz/images/file/24534363937.pdfIn PDF document text
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139ad181a36a---32475694222.pdfIn PDF document text
- http://bippex.com/filespath/files/20210915175038.pdfIn PDF document text
- http://topenglish.sk/app/webroot/gallery/files/8500389969.pdfIn PDF document text
- http://salman-is.com/userfiles/file/52073061071.pdfIn PDF document text
- https://larrialdiak.es/files/galeria/files/17270447276.pdfIn PDF document text
- https://tallerescarrion.com/uploads/file/90410950899.pdfIn PDF document text
- https://crownprolaw.com/userfiles/Proj_Name/files/16936741890.pdfIn PDF document text
- http://bobiniauto.com/userfiles/file/83024802260.pdfIn PDF document text
- http://bladensburg.abwingsmd.com/uploads/files/17609833380.pdfIn PDF document text
- https://jnvhardoi.org/ckfinder/userfiles/files/wukadalajovoxobusabu.pdfIn PDF document text
- https://mkontakt.pl/dat/file/39623416418.pdfIn PDF document text
- http://hanasushichoice.com/uploads/files/88978700144.pdfIn PDF document text
- https://tskrea.com/userfiles/file/77168312471.pdfIn PDF document text
- http://makassitools.com/userfiles/file///rutopasilira.pdfIn PDF document text
- http://noahmission.org/dataroom/file/73549345584.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_off0000d5c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5C9 | 17836 bytes |
SHA-256: da0a2a7fc09cd1ecfe457bdd588327a8ba837cd0e20429fcf5a2a32914dedb5d |
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font_01_sfnt_off000103b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103B0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011bc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BC7 | 10476 bytes |
SHA-256: af6d6602cab9d545f1b652718bfde48563042521a3c0ba54cd24041ac2a33659 |
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