MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised WordPress uploads or disposable hosting. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests an attempt to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://top1np.com/ckfinder/userfiles/files/21136371762.pdf
- http://capital96.com/userfiles/file/liponinalu.pdf
- http://geofer.eu/userfiles/files/8683461461.pdf
- https://naucharts.com/ckfinder/userfiles/files/90228657563.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087fd930dcb4---95801548763.pdf
- http://watthaistuttgart.de/userfiles/file/wevibiroxudabivemasolir.pdf
- http://innotack.com/userfiles/files/57375042481.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bdce1f338d---77498108561.pdf
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/41ff9b36c05c6b06e2e89bdb9de5b28c/54144022609.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16078ed912717c---kezupepimezobuburafaret.pdf
- https://infoenergie-loire.org/userfiles/file/luvuvegajapemusapapusekik.pdf
- http://vimar.ua/userfiles/files/71761527486.pdf
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/160796b701a7a2---torosaxitudenaw.pdf
- https://chambredhotes-savoie.com/ckfinder/userfiles/files/75302665446.pdf
- https://bauarch.bg/files/70052644092.pdf
- http://lempreintedubois.fr/userfiles/lempreintedubois.fr/file/zopujezilikifotisamuxakif.pdf
- https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/6374b59655d3f4697336bf8729b6bf95/wikefepufavazovadoguj.pdf
- http://felixefontesadvogados.com.br/ckfinder/userfiles/files/89488910317.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610760048e422---7469876800.pdf
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/cd02cb6331893eaae61440734de850d1/rexerawiremibezabatid.pdf
- http://dolphinkorea.com/files/files/34777095442.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606efa9021f04---zexofujepulosevizefeteso.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c78b3e65be---nutidaliginewowokakujufom.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=questions+of+job+interview+and+answers
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e93d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE93D | 16792 bytes |
font_01_sfnt_off0001014f.binc2a4166ab89d822a36086f327184240bf509eefddd7be2751a89a00a1e988670 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1014F | 18040 bytes |
font_02_sfnt_off00012fd9.bin3664ead95a09f81fd4228c1fb91d86ba263048fc6047a80513e69b759c7e78b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FD9 | 10884 bytes |
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