MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://drafthe.ru/uplcv?utm_term=fifty+shades+darker+unrated+online+free PDF link annotation
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c211f30fce---rejavezoferuxupagujuroxu.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/4fa117a17b18b6f3134607adcce67341/22060343728.pdfIn PDF document text
- https://hanedantoptan.com/upload/files/venuwamejabiba.pdfIn PDF document text
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/f6fc592e02191e255579638d180fdf23/52711680787.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a59b8c65eef---17711356256.pdfIn PDF document text
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/6698fu7grldumvrcdnfrq77nsk/xeribagatoworarimuleda.pdfIn PDF document text
- http://mp-hd.de/data/aktualnosci_imgs/file/87376595287.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/ahq66s46b5gdovtcsih2q4rm7i/kelusovalosivifinamigesa.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/libuxoriwazubado.pdfIn PDF document text
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/1673236109ecd0904c919dc217416efe/73998779489.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bd3fc163b7---govobasinibumuto.pdfIn PDF document text
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/eeeca3c8415658c44e81bcde4ef4c75e/siwuralep.pdfIn PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/32sth2vd9k5koiko3duguj4c04/tininipepuno.pdfIn PDF document text
- https://tecnibat.net/uploads/archivos/63156524835.pdfIn PDF document text
- http://caphegiabao.com/upload/fck/file/vitefuzubi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d9cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9CC | 5116 bytes |
SHA-256: 5e812e592b07281cc4c5216e8aca6b2c18396e806c4f69c2ba9781c55acc534d |
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font_01_sfnt_off0000eb3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB3E | 12072 bytes |
SHA-256: 31a2246c79306f481d76ca99f56ca30960dd65bdac39f975ee47c27814eb1cb2 |
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