MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing or trojan. Heuristics indicate it functions as a link farm, directing users to multiple external URLs hosted on compromised or disposable domains. These links likely lead to phishing sites or further malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://drafthe.ru/uplcv?utm_term=prolapsed+bladder+symptoms+and+treatment PDF link annotation
- https://zd-zeta.com/uploads/files/202109250734171361.pdfIn PDF document text
- http://stringquartet.biz/web/images/fck/file/fedimexeke.pdfIn PDF document text
- https://chiuman-hk.com/images/file/gusosebabilesi.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/ec437a597ff4060f866eeed179ee78ee/85423413990.pdfIn PDF document text
- http://atol-res.pl/uploads/file/37911539342.pdfIn PDF document text
- http://vistobrasil.net/uploads/file/zojutokezobusamo.pdfIn PDF document text
- http://tamtamphat.com/upload/files/datusaridubukovuninuz.pdfIn PDF document text
- http://minhquoc.vn/uploads/userfiles/file/ruvavufi.pdfIn PDF document text
- http://megatex-plast.ru/pub/file/vemunidaxoxo.pdfIn PDF document text
- https://charlesstreetvideo.com/userfiles/file/rixawavomu.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614cd14167c96---reviruweronivuwetome.pdfIn PDF document text
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/ngmh5tu8k7n39edo57n22t0326/47771507151.pdfIn PDF document text
- https://zbmbudomont.pl/userfiles/file/11122752332.pdfIn PDF document text
- http://millenium.moscowfashion.net/content/xuploadimages/file/vajiwe.pdfIn PDF document text
- http://1day2night.com/UserFiles/file/xunagazisobokewizu.pdfIn PDF document text
- https://olivierdaulte.com/ckfinder/userfiles/files/67682572510.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16138169f44053---76355813728.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161571cd707d04---begotojelegezeferozutik.pdfIn PDF document text
- http://agcslohian.com/userfiles/file/45403406781.pdfIn PDF document text
- https://tunguoilon.tunhua.vn/ipp/images/uploads/files/fezarefezotukus.pdfIn PDF document text
- http://rentator.com/uploades/fckeditorfile/laxerofifowikow.pdfIn PDF document text
- https://rumputhijau.com/contents/files/wunexanuwukigibawidibi.pdfIn PDF document text
- http://vasset.bg/userfiles/file/sepowunapufinaganogi.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_off0000c287.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC287 | 10716 bytes |
SHA-256: a7cbe7ccb63d6e2f40e7b936deadc17fa703a2c047d91e2fbc224694161b72f5 |
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font_01_sfnt_off0000daf3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAF3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f305.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF305 | 16512 bytes |
SHA-256: c4881609667f4adc97cc611d20391049908ddc79bca4f18244686183b16e751b |
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