MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised WordPress sites. The primary IOC is the URL to a compromised WordPress upload directory, suggesting the document is used to distribute malicious files or redirect users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4a3ca4ddc5---70574218018.pdf
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ade72aa2ffd---28445881514.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/18287adab05db03eab597d811ee9eca5/vazirakeji.pdf
- https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/13cdkdnkp8kdbamqmtd364g1c5/kijexejiw.pdf
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160845c783d286---28459768440.pdf
- https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/sq1h6b2ltpplppig10585l8m1a/jitaru.pdf
- http://arniestribu.com/campannas/file/tusipixidonok.pdf
- https://itexpertdog.com/upload/files/tatibunej.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/2hl5thh8jtgi657f1mbqeqvg65/14915551209.pdf
- https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/48978283861.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab3eb8d36f---1798920808.pdf
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/2aa5ea878793872494ba0b25140b47c3/sodib.pdf
- https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/511ee4b10190474a2328757ebdf9fe4c/24223295260.pdf
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/b2f02b5e76eed901ee03c1dca8a38fa9/67226679795.pdf
- http://dent-pro.cz/pic/file/zatulorodejoxu.pdf
- http://ilturismoinitalia.it/userfiles/files/46150026230.pdf
- https://lienlacanien.com/img_pages/file/91250932277.pdf
- http://namuvaldymas.lt/userfiles/file/kotojubanekox.pdf
- http://bet-balance.com/userfiles/file/46480942642.pdf
- http://suttonoakfarms.com/clients/880813/File/moputazidamedobu.pdf
- http://timelessmebel.ru/wp-content/plugins/super-forms/uploads/php/files/7cd75d8bd97c7a9114e8f6ad6e87514f/30336666921.pdf
- https://llsindia.in/FCKeditor/file/vexitejizogeputamil.pdf
- http://xn--80age2amlc.xn--80adxhks/pics/images/file/66046226564.pdf
- http://lamachine.nl/userfiles/file/38743685131.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=pertussis+treatment+in+infants
- 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_off0000ee37.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE37 | 16792 bytes |
font_01_sfnt_off00010649.bin4aabe6498b3bf6662e265c47ba6f35fe5695dcfe4b2900a065160cd967053324 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10649 | 17636 bytes |
font_02_sfnt_off000134c6.bin029b86b49c6abd24a377c206bd103440114ef6d06c56dcee46811980d4148c18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134C6 | 10308 bytes |
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