MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The ML classifier and ClamAV detection strongly indicate this PDF is malicious. It contains a link farm pointing to multiple distinct hosts, many of which appear to be compromised CMS uploads, suggesting an attempt to obscure the final destination. The presence of numerous PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating a tactic to evade detection by distributing links across disposable hosting. The document body is unreadable, but the heuristics and URL structure point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://narnivet.com/userfiles/files/42148373495.pdf In PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5a6ad3122c---34107730937.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3f9af7f5cff0dcee536677d89e2054a9/92663197277.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/a3h33f8o02dan9k2s04ju3f17k/gukumafigurasefolapevix.pdfIn PDF document text
- http://kath-kiga-bw.de/bilder/berichte/file/6340264101.pdfIn PDF document text
- http://adria-ex.com/images/blog//file/4671956307.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/lokamokirozodexusuxaxuv.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/f37201c9b1782e2058a384d1dd857d98/tonovibezimiwel.pdfIn PDF document text
- https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/47h6emkh0hi67d08bbf2i87c57/fuwuxalugorotojolesogi.pdfIn PDF document text
- http://nkland.org/userfiles/files/tinoroki.pdfIn PDF document text
- http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/laburezimugetolutelusoze.pdfIn PDF document text
- http://baigeleather.com/userfiles/file/85122812093.pdfIn PDF document text
- http://galluccifaibano.it/userfiles/file/90446063356.pdfIn PDF document text
- http://arcos-eff.it/userfiles/files/63287876938.pdfIn PDF document text
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160a24b1663566---gafafipizul.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=introduction+to+old+testament+theology+pdfPDF 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_off0000e44c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE44C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fc5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC5E | 17152 bytes |
SHA-256: fa4bfd1713cf7792130a273a0b215840371de10d5edd41879b1a38ec86040fe9 |
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font_02_sfnt_off0001292a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1292A | 11232 bytes |
SHA-256: a70901c689999c7374657a4c67543f2be28edf3de537f495506e87335832bd34 |
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