MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating it is a link farm and points to compromised CMS uploads, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of numerous URLs, including one disguised as a tablet update, points towards a social engineering attack to trick users into visiting malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://artemon.nl/userfiles/file/xiburoropurumi.pdf In PDF document text
- http://vakoplus.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/jizurilosoxegozix.pdfIn PDF document text
- http://dongduong.net/Images_upload/files/zarawebolofurozi.pdfIn PDF document text
- http://ddaengshop.com/ckupload/files/rajibawiwumafagewa.pdfIn PDF document text
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/7mi17a3trjr57bf36d78pnvfvf/sujagijuki.pdfIn PDF document text
- https://www.studiorosaliabusco.it/ckfinder/userfiles/files/69389580430.pdfIn PDF document text
- http://websurin.net/UserFiles/File/98099217698.pdfIn PDF document text
- http://eko-baby.ru/userfiles/file/76127171819.pdfIn PDF document text
- http://murasakijr.com/uploads/files/wafizativovukebubekeb.pdfIn PDF document text
- http://agenziaimmobiliarecannavo.eu/userfiles/files/jewomusepatovagopedib.pdfIn PDF document text
- http://aaronandanthony.com/userfiles/files/10308318155.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613d860aa8683---tuzegazakevu.pdfIn PDF document text
- http://bebsulmare.com/userfiles/files/35562328608.pdfIn PDF document text
- http://www.ecrivains-consult.fr/easyonline/ckfinder/userfiles/files/10428341803.pdfIn PDF document text
- https://pottoka.info/files/galeria/files/7762609392.pdfIn PDF document text
- http://hrudolf.com/userfiles/79698671886.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f225a24585---45610917456.pdfIn PDF document text
- https://lolakarimova.uz/ckfinder/userfiles/files/gofowanufimu.pdfIn PDF document text
- https://kolbandibileklik.com/resimler/files/98520249351.pdfIn PDF document text
- https://budapestpainter.hu/ckfinder/userfiles/files/matakukir.pdfIn PDF document text
- http://chayka-svg.ru/files/safeviwekorubutite.pdfIn PDF document text
- http://yas-center.ru/userfiles/file/suvefuge.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=update+my+tablet+pleasePDF 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_off0000b5d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5D0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cde7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDE7 | 10396 bytes |
SHA-256: b5fe3e76cd8b3340fa7d55f8752c64a63fdded8d4f4260023ff923ad0d7f1b10 |
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font_02_sfnt_off0000e540.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE540 | 15352 bytes |
SHA-256: b49644865e5c5ee34bfcbdd3d5dffef13e1ca5b549af2e350611c397a6019587 |
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