MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised WordPress sites, suggesting it functions as a link farm for phishing or malware distribution. The presence of external URIs and link farm heuristics indicates an attempt to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://queure.ru/uplcv?utm_term=3+ton+flatbed+truck
- http://walthamclassof1985.com/clients/5/52/52060312c10aa816a718e90a19a6a7a1/File/45728849826.pdf
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/3767e62e8421e165a5ab95d794aae5d3/rafanifulezakajirezufa.pdf
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160983cbc76722---jeladimagepirilowoxijume.pdf
- http://chalappuram.com/userfiles/file/1892764534.pdf
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/6876cffe62e646b0c6932d5329e3489e/zusuxanamawajuloxutaxirel.pdf
- http://acecaalcoy.com/userfiles/file/80714891267.pdf
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bdb2b1e080c---98813891782.pdf
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160815c5300fd8---27703110413.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/j0mdfsrbt1pe0rgjgp7cr0sbg5/sabenejodeg.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160af679f04da1---wusefopigivopimomusuku.pdf
- http://zonweringbelgie.com/ckfinder/userfiles/files/wanuzavunipuv.pdf
- http://creativeindustries.ru/uploads/userfiles/file/99639223607.pdf
- https://egca.fr/userfiles/file/42201333028.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b96e83b4923---50523253475.pdf
- http://www.rkcomdesignservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca7e19b886---99257729789.pdf
- http://www.abcklima.hu//data/editorfile/57436927699.pdf
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/fe71h5rjd78nq441ftk2ue2rvs/rijemavajiginazasar.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2cea2582d---96298995750.pdf
- https://marljivo.hr/userfiles/file/koxodekesavusamidepim.pdf
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/ca732a679b26dcbd94c85218af827ea9/vererijalujagexuvajof.pdf
- http://esipro.fr/userfiles/file/51109100319.pdf
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c3e43c7dbf8---roduwabeziz.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_off0000e93d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE93D | 16792 bytes |
font_01_sfnt_off00010154.binbb1414503186b7cac6c744ac55ef0531e7efa941ea461e8bc2c4fd094b58a801 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10154 | 10616 bytes |
font_02_sfnt_off000119bb.bin6765d5ff0ea95eafdd6ccb9f073d809c9eec90849811084d82cfcf44a4dcb270 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119BB | 16976 bytes |
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