MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting it's used to distribute further malicious content. The PDF structure itself is not directly indicative of a specific attack pattern beyond hosting these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://onishi-kyosendo.jp/archive/wuvipenitukiter.pdf In PDF document text
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160795cd0a2402---29024092627.pdfIn PDF document text
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/3fv8l08t45dg16lpa2u4qsm076/82399686.pdfIn PDF document text
- http://tikatalog.sk/_files/file/12323519243.pdfIn PDF document text
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/vt1k34csgibevdivbc3fgpgam7/72009868177.pdfIn PDF document text
- https://edu-mate.kr/_UploadFile/Images/file/toxidupug.pdfIn PDF document text
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e54b945c2d5---35230520818.pdfIn PDF document text
- http://cci100.com/clients/57496/File/lesilivunitunefojuxo.pdfIn PDF document text
- http://ctkupavna.ru/upload/file/42841174445.pdfIn PDF document text
- https://ajansnigde.com/resimler/files/vavotejoluvoloxu.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099d969bcc06---gufiwapifivusumuma.pdfIn PDF document text
- https://loctra.net/userfiles/file/97527017174.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c3c4b5b910f---novurolulara.pdfIn PDF document text
- http://bukharaatlanta.com/sites/default/files/file/daziwikijilipetutodo.pdfIn PDF document text
- http://usmleworkout.com/files/file/labimezabejotawanonolaviv.pdfIn PDF document text
- http://nowyhotelik.pl/userfiles/file/50584716988.pdfIn PDF document text
- http://lab4050.com/upload/editor/file/14313600411.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160882ff095eb7---nijosutijelizudogan.pdfIn PDF document text
- http://studiotecnicodavico.eu/userfiles/files/gepof.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=symptoms+of+stomach+flu+in+adultsPDF 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010c06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C06 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001241d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1241D | 10944 bytes |
SHA-256: 334da65de3d54ef475d63a50d1fc4cdf9963b59c8659d053030f9fd626bded3f |
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font_02_sfnt_off00013d44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D44 | 17164 bytes |
SHA-256: d38732a17c02de3be6dce5fcf8c8e70057e800edf580fc5e9dc2c10449ad65e8 |
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