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 uploads and disposable hosting, suggesting a phishing or malware distribution lure. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to redirect users to phishing sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://pistant.ru/uplcv?utm_term=what%27s+a+lucky+pokemon
- http://enerjipiyasalarizirvesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da0dfaad121---68361393216.pdf
- https://stopserv.ru/files/file/gisogopakulubebuxore.pdf
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/fabb5d86c1eb48d1d22effff0b6136d5/1581783944.pdf
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077c7cf49acf---85511998325.pdf
- https://kurek-rowery.pl/user_pict/file/xijufabisedugexalika.pdf
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160711c1163a99---kufopezetuv.pdf
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/cc2eac282db30672ea1ca92e8665d800/nowizovatuloweluve.pdf
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2174ee3bc6---57335276374.pdf
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/b8c2942a3ee1af77396efc2ce230ca90/mufudisagirapuwotomajo.pdf
- http://ministerium.pt/files/motumogoborobuka.pdf
- https://carlojans.com/cms/file/kegonidiz.pdf
- https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/48175898347.pdf
- http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/84be85f28ed415743122f2ef54ff7a4f/womikogunesotedarunupad.pdf
- http://dchs1961.com/clients/871949/File/8309061930.pdf
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160713e33c9d16---fegokefuguziv.pdf
- http://ricarda-allegra.de/userfiles/file/75169497134.pdf
- https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/2beccd447d2efa673d55788048d047ad/kenoxafifoxotabumemavo.pdf
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/160be0825256d1---bajamosudofiko.pdf
- http://duythuc-bearing.vn/uploads/userfiles/file/16394996236.pdf
- https://its-bulgaria.bg/files/file/mameramizagonugiwabudasa.pdf
- http://etpatatietpatata.com/userfiles/files/90658063678.pdf
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/qak6audnb4kolns2edgs75pbt6/xitalusejobodinidax.pdf
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/c7c07cd0ff9ffd215141447efa08fee7/17051160821.pdf
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/aiqjbkrjssme54n3oq8pgmu2c9/nujowon.pdf
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d110c85908---mezovozilizo.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eda0.bincc1727e0862626abd2a1e4be660b2a330a6b0833071227a17ec3afe8ffde8647 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDA0 | 10780 bytes |
font_01_sfnt_off00010672.bin81379b75b522c3b03d39218e375131132eb81e55a0b5815aaa59ed1b0b9251f6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10672 | 17700 bytes |
font_02_sfnt_off00013529.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13529 | 16792 bytes |
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