MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a link farm designed to redirect users. The presence of 'utm_term' parameters and the 'SEO_DISPOSABLE_LINK_FARM' heuristic indicate a deliberate effort to obscure the final destination and potentially distribute phishing content or malware. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://pistant.ru/uplcv?utm_term=different+types+of+contamination
- http://derma-dts.de/files/file/dawasirexupaxavigusivusur.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b8c434cea06---zadarago.pdf
- https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/r1h76gebu7l5smjkbvrlldu2n4/riduvil.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/t6u85hlhmt3b2aioor4335geb8/22481124361.pdf
- http://krajinar.cz/soubory/files/67624748435.pdf
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/o38n0efe14frg00cuqrofkbui0/88386615291.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/a9332a3344eeb5fb882e2e0b290b3917/16677037041.pdf
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/65cd41cedd799bb54bc32c7f18493766/3925164758.pdf
- https://a-1commercialkitchenservices.com/ckfinder/userfiles/files/84539281400.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/a76c8e0f86c7ac52f0d2af378ee2dfc0/11665225659.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/b6ff218a53223705a3e41e6cb8779892/49805827762.pdf
- https://novahealthclinic.ca/userfiles/file/30790495244.pdf
- http://sentezetutmerkezi.com/upload/ckfinder/files/98710024665.pdf
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/6v38mp8122d1rltdoh0tl46k7c/5443393068.pdf
- http://actybrain-consult.com/Upload/files/xakarakesuvik.pdf
- http://mai-colle.jp/userfiles/file/28878353524.pdf
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16081cd62140fe---tuzinigur.pdf
- http://kondicionery-fryazino.ru/upload_picture/file/41355741891.pdf
- http://magogaralbamoble.com/galeria/files/28819882224.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160718ef8e03c1---2825923031.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607781b584017---74263125318.pdf
- https://jurad.eu/files/file/65442236865.pdf
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ec9cd5519b6---90436996069.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_off0000e984.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE984 | 16792 bytes |
font_01_sfnt_off0001019b.bin4c20c9e3d0c0556054603736abe1d62d919f872a7989ddd6045e9445ba0adc48 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1019B | 10712 bytes |
font_02_sfnt_off00011a3f.binfebe6fffdda6968ea8fbb78ffe206fb012ae03b167bb4276ce799f8492c6aabf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A3F | 16668 bytes |
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