MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs that form a link farm, with many pointing to PDF files hosted on compromised WordPress sites. This suggests a phishing or malware distribution scheme where users are enticed to click links that lead to further malicious downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16086070b0eed7---gemupuj.pdf
- http://lamachine.nl/userfiles/file/nemikasezedevaka.pdf
- http://xahscw.com/userfiles/file/fufifapifoluruz.pdf
- http://annandale1963.com/clients/69704/File/joxaxawepitu.pdf
- https://baxsporthorses.com/userfiles/file/jotosifetidewado.pdf
- https://bio86.net/fichiers/4151361378.pdf
- https://ipssecurityconsultants.com/ckfinder/userfiles/files/masenugoke.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609226419120f---dozipizilajovowepadegov.pdf
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/nr92slu3qave931qlsn1c63512/20197904126.pdf
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/v2e1vcik579vdfps5uiiola8n0/sisusemapo.pdf
- https://bistakalikotenetwork.com/userfiles/file/fasatufaxexesazoxuriti.pdf
- http://churchontherockuk.org/home/churchontherock1/public_html/userfiles/files/tetemazeramir.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/c4eb29c66f7f8ce1b3b6245daa065b6c/ximurirupurowixonufira.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/2c998c633b300d631e0e9711587f75f8/22225982798.pdf
- https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/be6f65ef5c5cfe35d0ae1cdf642931a8/mekimibufanajik.pdf
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/f75d514496b26f4f472bc4d8193290d1/83322318592.pdf
- https://szekszardportal.hu/userfiles/file/vavufagesemugexibow.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c8bf8258b53---82606216988.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16077c281adca3---bebuzibidokabe.pdf
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a9b80849ca---80202834470.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160ad8f814e5dd---topizidoli.pdf
- http://krikrik.ru/uploads/ckfinder/files/pesarak.pdf
- http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/16562178146.pdf
- https://yesilkoyluleriz.biz/resimler/files/ruxewu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=best+quiz+with+answers
- 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_off0000bc91.binc7358386d068162ebd0bcd325af7d34dddb0aa7c9abed8fc6b8ea222dfd3e0ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC91 | 15724 bytes |
font_01_sfnt_off0000e46a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE46A | 16792 bytes |
font_02_sfnt_off0000fc81.bina39a67991a9791a450a9345e50bc9a89f121288e0dc33a5533c7da08f04efd75 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC81 | 10484 bytes |
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