MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating phishing and trojan activity. It contains numerous external links, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The PDF's structure and embedded links strongly indicate a phishing attack, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9909
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://infrive.ru/uplcv?utm_term=joy+of+creation+reborn+android PDF link annotation
- https://innotek.vn/uploads/news_file/beganu.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614382e3d503e---lasenupij.pdfIn PDF document text
- http://thegioioto.store/upload/files/jamonimor.pdfIn PDF document text
- http://toyotarent.tw/FileData/ckfinder/files/20210910_5766C847DD3C5DC1.pdfIn PDF document text
- http://www.css-jp.com/upfile/files/2021/09/24/zatewowasosode.pdfIn PDF document text
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d67e9147cd---26621792434.pdfIn PDF document text
- http://behtarinekhodetbash.com/files/files/wazokonibapatuda.pdfIn PDF document text
- https://kcss.hu/korosi/userfiles/file/8569282263.pdfIn PDF document text
- http://massimobertoarchitetto.com/userfiles/files/kedazesimewufuliveb.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16134643756cfc---20959791881.pdfIn PDF document text
- http://huyminhplastic.com/upload/files/jifupa.pdfIn PDF document text
- http://studiotrusso.it/userfiles/files/dosomizizumurepogu.pdfIn PDF document text
- http://zsdbiopharm.com/upload/files/90887066402.pdfIn PDF document text
- http://art-ball.net/files/file/favogasaxepe.pdfIn PDF document text
- http://aroma-es.red/yamituki-n/uploads/files/derovisofuzemevekozube.pdfIn PDF document text
- https://gertiesbloomers.com/kousumi/nulook/upload/fckimages/file/23155013786.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614413d21eaa8---68697579978.pdfIn PDF document text
- http://runhouchem.com/upload/files/13853962585.pdfIn PDF document text
- https://rdsdealers.com/ckfinder/userfiles/files/73327137660.pdfIn PDF document text
- https://aneri12.cz/res/file/borinojepojidonan.pdfIn PDF document text
- https://privatecambodiatour.com/userfiles/file/75374551283.pdfIn PDF document text
- http://mathcountsoutreach.org/userfiles/file/43661013551.pdfIn PDF document text
- http://bajcsidavidfoto.com/_user/file/64709046136.pdfIn PDF document text
- http://thestarbusan.com/FileData/ckfinder/files/20210927_262C350337AE07BB.pdfIn PDF document text
- https://urbanlivin.lu/userfiles/files/xexixevumarisesag.pdfIn PDF document text
- https://fotojursa.cz/userfiles/file/kosalowiligokotupudapene.pdfIn PDF document text
- https://aaaxxion.info/images/file/86141578986.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_off0000b686.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB686 | 15608 bytes |
SHA-256: 54f4985ba116d3818e8f7d8d99796c2691a53915806ec2d98747f9db99799bbb |
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font_01_sfnt_off0000ddec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDEC | 10500 bytes |
SHA-256: ed4da2760cf9db6ee78ed478d34d19a18b6c12c45098c7e2fa8e479084d9a9b3 |
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font_02_sfnt_off0000f5fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5FC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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