MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by a ClamAV signature and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS upload storage. The embedded URLs and the nature of the heuristics suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://chcial.ru/uplcv?utm_term=the+science+of+getting+rich+in+marathi+pdf PDF link annotation
- http://tcsklife.com/filespath/files/20210906001646.pdfIn PDF document text
- https://www.nhabe.com.vn/ckfinder/userfiles/files/77265653217.pdfIn PDF document text
- http://mientaytourist.com/uploads/files/60671526178.pdfIn PDF document text
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/161374ea26560a---27585184385.pdfIn PDF document text
- http://erh-hu.com/userfiles/file/dutejamafiro.pdfIn PDF document text
- http://tidomusica.com/uploads/files/202109080653246025.pdfIn PDF document text
- http://kolaykanal.com/userfiles/files/32608744119.pdfIn PDF document text
- http://viethanit.vn/hinhanh/file/33908114991.pdfIn PDF document text
- https://netcsemege.hu/ckfinder/userfiles/files/zetofopigumuranezaj.pdfIn PDF document text
- http://www.springperfect.com/upload/finder/files/81678320164.pdfIn PDF document text
- http://renknh.com/ckupload/files/39610434802.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/161490fb297f22---worodoruwefotogumexikomar.pdfIn PDF document text
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134deb35c56d---92413822860.pdfIn PDF document text
- https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613dab3913e67---bibopa.pdfIn PDF document text
- http://kfbma.org/files/fck/file/lulofivoku.pdfIn PDF document text
- https://clinicamanila.com/ckfinder/userfiles/files/75515312512.pdfIn PDF document text
- https://clubkdo.fr/img/pics/files/33894620796.pdfIn PDF document text
- https://cabsfromheathrow.com/userfiles/file/fugogexawasasonaxofufipus.pdfIn PDF document text
- http://chapelguild.com/images/usr/fizesepezopuwajaxufubus.pdfIn PDF document text
- http://abw10thstreetne.com/uploads/files/82461856979.pdfIn PDF document text
- http://textstricker.de/benutzerdateien/fevifasikejasuge.pdfIn PDF document text
- https://lifesmart.lifesmart.ro/ckfinder/userfiles/files/30783574165.pdfIn PDF document text
- http://satcomlink.com/userData/board/file/memotupuzedaweruso.pdfIn PDF document text
- http://artwatch.ru/userfiles/file/54495527611.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_off0000b2de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2DE | 10984 bytes |
SHA-256: c57d025bce9d629adc6d28e8f13ee30b1490ba3db6663db1c3da261da7965d7f |
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font_01_sfnt_off0000cc02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC02 | 17360 bytes |
SHA-256: 67ad40720f3f3f2ae920b9b869491561632ab6a854ff9006e498d9e7558d91dc |
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font_02_sfnt_off0000f7f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7F5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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