MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's a PDF link farm hosted on compromised WordPress sites. The embedded URLs point to various PDF files, suggesting a phishing or redirection scheme. The primary attack pattern involves luring users through a seemingly legitimate document to potentially malicious external content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e57592549---biliteburafoz.pdf
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082f4f7ccdc0---32421024815.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16084a6024e419---nakajuwujaroximi.pdf
- https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/btr6nqo5mmf2apq8c0l9s74b7h/51839519627.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a802c698302---kuzapesemosogupemaziguv.pdf
- http://auburn-properties.com/userfiles/files/64486610206.pdf
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c904a0393af---30196871269.pdf
- https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/5ade5604a2b3180f58d1639db5b55089/8863748687.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a00ceca77f6---rawijodabewame.pdf
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/1e7adefc2335987cb6067614892c97d8/45935548926.pdf
- https://www.vbclighting.com/wp-content/plugins/super-forms/uploads/php/files/fe4a2300e2d654ff91098220207dbe89/25620707329.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/2c6e2c917c2221131aef450d01be8416/14966734750.pdf
- http://rebeccafantarchitetto.it/userfiles/files/62967237370.pdf
- http://gandolfiarchitetti.com/userfiles/files/88047253665.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609bd2779ce75---55356352326.pdf
- http://strefa-fitness.pl//fckeditor/editor/filemanager/connectors/phpplikifile/gimezaratum.pdf
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070d12421f7c---66000728368.pdf
- http://fluidearthconcrete.com/userfiles/file/88453313731.pdf
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160849516d6e6b---64804285852.pdf
- https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/bbab830e5de1f00d1dbc1154ec752017/59910368739.pdf
- http://kfnmdg.com/upfolder/e/files/20210607100012.pdf
- https://szekszardportal.hu/userfiles/file/89069921301.pdf
- http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/vjdbq2nasg7csquc9s3bsfiih7/65933461239.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=gesture+and+movement
- 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_off0000f8e4.bind10f154b034e24300df656b4d6da177e3369351e7cfa69e42d50e410a62bd596 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8E4 | 18544 bytes |
font_01_sfnt_off00012936.binc169d1471945bb9022abec478f94b53a8e0f35c23c96cf01ae67e4fe692f52c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12936 | 10476 bytes |
font_02_sfnt_off00014116.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14116 | 16792 bytes |
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