MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous compromised WordPress upload directories, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The document's structure and embedded links are consistent with a tactic to lure users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a2175f6b9dc---jugijusudepazuweto.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16079e7adbd732---luveturur.pdf
- http://dajuicebarus.com/uploads/files/zugikifenej.pdf
- http://bezpiecznamlodosc.org/files/file/13071271976.pdf
- https://cristalensi.com/public/File/modabotuwudifawudod.pdf
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f95f1bc7ab---81633563035.pdf
- https://bbmint.com/userfiles/file/wukijikas.pdf
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/8fe8913e9041937712043aade5c76aa6/tabawam.pdf
- http://cdkkck.com/uploadfile/file/20210620005549.pdf
- http://wrhs1967.org/clients/6/61/617565fc8afb9cc6d18abf932d248b7a/File/17662092489.pdf
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/bepn8brm22u98bt2bvto00fai9/kerasavoxubetiv.pdf
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/rbqrr20eo00sgmdqhc1d6nbiqt/ditimupa.pdf
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/qpe375ta2n7h6956cr4d1k6h9u/tidipipavukuwawixe.pdf
- http://anhuizhkj.com/upload_fck/file/2021-4-30/20210430185435990896.pdf
- http://kuhomania.ru/ckfinder/userfiles/files/vorixe.pdf
- http://lisaarkinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/timudetuvupibezo.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfdadc4d0b---29323887591.pdf
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/b7248fca0ae5f401d3d850a0d7b015a4/12396329423.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609164276307e---10369416364.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/a3bd7cb20c634b9a6bb6a5f9fb30e516/lixak.pdf
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/0462c7725132ae74a334d022cb0c5760/juvamipivenasotawemen.pdf
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160d9169ddec56---milorovewikes.pdf
- http://falerisztika.hu/tmp/93489132664.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=nor+gate+is+equal+to
- 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_off0000f587.binf84ce3ed2ddcc796fba3c64a75c9dc7b4c50a9ff53a66261f44e3d27e4664b44 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF587 | 17200 bytes |
font_01_sfnt_off000122a7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122A7 | 16792 bytes |
font_02_sfnt_off00013abe.binba812dc8c310e263a5d3ec2da4458736dee34a3c8d35831679c2c88eb63d93c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13ABE | 10404 bytes |
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