MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The primary purpose appears to be redirecting users to potentially malicious content hosted on these external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://namhunglogistic.vn/site/files/72620756446.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/eurkv7j1rjek2ie1rguq1vtqs5/39972481573.pdf
- http://baovekhucongnghiep.com/upload/files/84308418095.pdf
- http://ediliziaunoaventi.com/userfiles/files/26702006868.pdf
- http://alliusie.com/userfiles/file/95095414692.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aeb3704ccd8---delibimuku.pdf
- http://daisytalavera.com/userfiles/files/delafut.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ddded8a866---38505708814.pdf
- http://anhopphat.com/uploads/files/voririzebilojilulifi.pdf
- https://spheresignal.com/app/webroot/userfiles/files/sosewudegivomabipowapin.pdf
- https://dehayemek.net/upload/ckfinder/files/92871271710.pdf
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/d2440e879b816cb9f11c8cdef2510d48/61904688245.pdf
- http://bernardthevenet.fr/ckfinder/userfiles/files/loreruwaxure.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/55a756fbda6ccb6b0eb0aed236e57b4f/tiwukojekuzidowusevasupon.pdf
- http://epoch-making.jp/js/upload/files/64180812460.pdf
- http://nextgt.eu/uploads/file/fisujabator.pdf
- http://zkmeiqi.com/admin/ckfinder/upfile/files/62672131447.pdf
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/ec5ei44rf8agi0pgg7h228s4ml/77772432340.pdf
- http://khiconghoixuancong.com/Khicong/admin/userfiles/file/buzagipurorofonosokufotep.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a0fdd1b355---pesopapamapipizukawujej.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608ed7341ca34---jisasanu.pdf
- http://hodori247.com/uploads/files/repawexevoje.pdf
- http://fleshlight-tw.com/userfiles/file/pofawimifureguwefowefa.pdf
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be22388a358---zitotinebaliginad.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=erkundungen+deutsch+als+fremdsprache+kompakt+c1+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_off0000e2e7.bin324db605b902aac55756788666787b5eed5626c4143c4b2fdc43d18169f47415 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2E7 | 22152 bytes |
font_01_sfnt_off0001194d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1194D | 16792 bytes |
font_02_sfnt_off00013164.bina7ab3db86620031c4f2524a61553069085c7a63731e0c2ec55212b2feaa39db0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13164 | 11200 bytes |
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