MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised WordPress upload directories, suggesting a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9926
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 http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b605a0bf6d5---94335722556.pdf In PDF document text
- http://yangs-ns.com/ckfinder/userfiles/files/20210701060238.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a583e9e68ba---xamenade.pdfIn PDF document text
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3cfa1ec01---37467017310.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa4750a21a7---nudewuzatutunu.pdfIn PDF document text
- https://bnbcostaverde.it/userfiles/file/19028383719.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb2e5a0fb8d---99238825397.pdfIn PDF document text
- http://accomplishtheimpossible.com/userfiles_ati/file/29470313821.pdfIn PDF document text
- http://appli-veolia.net/ckfinder/userfiles/files/rejipofib.pdfIn PDF document text
- http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/61856708126.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/silulavezijivufejo.pdfIn PDF document text
- https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/nqoiaae73jqk23jmn09990n868/32955638323.pdfIn PDF document text
- https://meganimal.pt/site/upload/file/88220709999.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/c8eb987089c651b66be9d084ae9173bd/disuvupe.pdfIn PDF document text
- http://megat.pl/uploaded/fck_files/file/82735976098.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160892ea08180a---vedemazaneverepagadi.pdfIn PDF document text
- http://greenbrier101.com/userimages/sezebakunas.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160803ef1e28b0---gidaminagor.pdfIn PDF document text
- http://bonfiremadigan.com/uploads/fckeditor/file/juzunaloniwusafunaxinilak.pdfIn PDF document text
- https://weilaimachinery.com/userfiles/files/rokododakunupukifinu.pdfIn PDF document text
- https://mamotato.ro/userfiles/file/19028903573.pdfIn PDF document text
- http://duepassidalcentro.it/userfiles/files/75454412480.pdfIn PDF document text
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16085a5aa54778---52871911803.pdfIn PDF document text
- http://hainescentreasia.com/images/file/kosij.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=musica+de+los+plebes+del+rancho+para+descargar+en+mp3PDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off0001035b.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x1035B | 22452 bytes |
SHA-256: 929b2e22b1cb87d4415112cb03d91345de783241f53e14f7ff9fe663f55c0152 |
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font_00_sfnt_off0000e995.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE995 | 11268 bytes |
SHA-256: a567df99fbf18394470ec930dd5d7d9a5e1782a64c76cd3933f1be42ed45ae44 |
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font_02_sfnt_off00012a71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A71 | 18604 bytes |
SHA-256: 4608328b8869c6499e6918d61f13016401fc34767f6983733d86f8e10ae5dd7f |
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font_03_sfnt_off00015934.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15934 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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