MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to numerous domains, many of which are hosted on compromised CMS uploads or disposable hosting, indicating a malicious intent to distribute further content. The ML classifier and ClamAV detection strongly support this assessment, flagging the file as malicious and a phishing trojan. The document body is heavily obfuscated and unreadable, providing no direct clues to its purpose beyond the embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://donaldnathanlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wiwikasav.pdf
- https://zanhotel.ro/beficientconsultingFiles/file/62406898530.pdf
- https://tiklatakip.com/calisma2/files/uploads/pofokokabijejunarize.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/67a998a7519c781cacb7d3e6758e575a/56551095631.pdf
- http://guitarenko.fr/img/files/livetifizomesapixexevevop.pdf
- https://burgas-remonti.com/userfiles/file/23679894740.pdf
- http://astmasme.com/userData/board/file/kurupekaxenosapuravaw.pdf
- http://crystalsteakandstogie.com/clients/1/1d/1dbb6d5698303b6304ae84622e226a19/File/somaguduja.pdf
- https://dialogueinpraxis.net/files/docs/tebod.pdf
- http://janaturismointegrato.com/uploads/file/64860482129.pdf
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd908edca73---xomubalajokinefa.pdf
- http://beulahcooleycollection.com/clients/870349/File/87371566498.pdf
- http://pelejas.com/IMAGENS/CKFINDER/files/tozuxodoli.pdf
- http://tobn56.com/UpFiles/file/zuxidob.pdf
- http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/126f281743c0e8ec875f0b56684234f9/zunefulogu.pdf
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/91er6ehbtdaf2hlmadpfh6d9gm/vavolivatawawevegazunuv.pdf
- http://beachfirebrands.com/userfiles/file/24853866460.pdf
- https://hitourkorea.com/FileData/ckfinder/files/20210624_3B8BCFC2EC2B9632.pdf
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/7efduc8kj6hck7lnrq7dktnj35/18808544920.pdf
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16088a159a2626---48799390431.pdf
- http://bygreenpure.com/userfiles/file/wiseg.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160722a7789a1b---80251952633.pdf
- https://tennis94.fr/img/pics/files/lewasilivupidivawutajebom.pdf
- https://editions-tlp.fr/ckfinder/userfiles/files/11171630178.pdf
- https://aartipalette.com/userfiles/file/pizijevenofavilusofebu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=gui+prototyping+tool
- 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_off0000e32b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE32B | 16792 bytes |
font_01_sfnt_off0000fb42.binaf0d221d75dcaf0abdaf830ed2ade8044891e9bd315d769b6bcb0c04bb485d1b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB42 | 10216 bytes |
font_02_sfnt_off00011247.binf898f37482ff015597c2938fc1c4871c977eaa53d13dd378e6f8eae4b6aea5c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11247 | 17384 bytes |
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