MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links pointing to compromised WordPress sites, which in turn host other PDF files. This structure suggests a link farm designed to distribute malicious content, likely for phishing or malware delivery. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://crysiq.ru/uplcv?utm_term=android+pdf+viewer+library+free PDF link annotation
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610450884a3ed---kapizumowazudivaw.pdfIn PDF document text
- http://anbao.vn/uploads/userfiles/file/kexulezixubukuru.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160c5f351d868f---65461774096.pdfIn PDF document text
- http://renovfab-menuiserie.com/userfiles/file/84309903891.pdfIn PDF document text
- http://laweasy.kr/userfiles/file/nupolijejasakelibudawisu.pdfIn PDF document text
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c91943d0327---56247037692.pdfIn PDF document text
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/t2ojsi0ka4onlikll13l3od8uq/1023641096.pdfIn PDF document text
- http://elateridae.com/images/FCKeditor/file/pudemimemodotev.pdfIn PDF document text
- http://jowinbio.com/upload/files/202109010533274157.pdfIn PDF document text
- http://alliusie.com/userfiles/file/jofukowuxufojinugin.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/72510353660.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c43b88f337d---tizeretupen.pdfIn PDF document text
- https://nangluongvada.com/uploads/files/60980023840.pdfIn PDF document text
- http://mindennapi.hu/upload/file/mivanunewo.pdfIn PDF document text
- http://alhouti.com/userfiles/file/20590654738.pdfIn PDF document text
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094074ba3d54---39311677590.pdfIn PDF document text
- http://beachhigh65.com/clients/879402/File/54333551790.pdfIn PDF document text
- http://bajajsports.com/userfiles/file/86319587138.pdfIn PDF document text
- http://alituncer.net/userfiles/file/ririkugurinevigop.pdfIn PDF document text
- http://chhattisgarhsanskritboard.in/sharpinstitute/images/files/tuliduboragifabimitutada.pdfIn 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ba1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA1C | 10612 bytes |
SHA-256: afa4fce3f0fb9a8febc81ee71c0b165df07b78a40fcd479b8d3c382d1047e610 |
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font_01_sfnt_off0000d247.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD247 | 16844 bytes |
SHA-256: 8ec853250f74ee6badd064ad01a21d6d5e609cdb3c02bc4a6e5269cbf00b8add |
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font_02_sfnt_off0000fe22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE22 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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