MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple heuristics indicate it functions as a link farm, directing users to various external websites. Several of these URLs are hosted on compromised WordPress sites or disposable domains, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support a malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://huichem.com/ckfinder/userfiles/files/61123051263.pdf
- http://rigosarchitects.gr/userfiles/file/jaduwilexodevivozafi.pdf
- https://biomedchita.ru/imeg_master/file/99898840924.pdf
- https://simbhaolipower.com/images/file/geviz.pdf
- https://syntellect.ru/Repository/file/gowolinagaburev.pdf
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/0c2915d010fc9a8e9d7eed2c662de2af/39123401294.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161357c318040f---40357064322.pdf
- http://trip-sale.ru/userfiles/file/51851874689.pdf
- http://www.plain-pied.com/editeur/ckfinder/userfiles/files/84989960363.pdf
- http://honeystraw.com/uploadfiles/file/nuwimika.pdf
- http://goldenpeak.it/userfiles/files/gigamuzebuforidavewumu.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3a134ec5db49a643bb759871cf8ba8b4/foxikamikewugodenorali.pdf
- https://rugsinc.in/UserFiles/files/lopuvelosolovabefumawodug.pdf
- https://tutorsbureau.net/userfiles/file/timogekidinam.pdf
- http://geopraxis.it/userfiles/files/76870233178.pdf
- http://stilistspb.online/public/files/uploads/files/26156595553.pdf
- http://grandrosso.com/js/upload/files/kexeguma.pdf
- http://appartenvue.net/appart/upload/images/milemolasabikajopevapiv.pdf
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/068737a8dabca3e2f0a902f7c6a51149/84482413021.pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145eb723bc8e---75808698423.pdf
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/fbbc16568fefd33e5015f91f00201acb/16611360288.pdf
- http://picassogift.com/Uploadfiles/files/larine.pdf
- http://restokrat.info/userfiles/file/nimapusedisamavesobuke.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=games+setup+for+pc+windows+7
- 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_off0000b5a6.binb39437b37e38103ff059a0be886eadf7219048d16264102e7dfc403819dbf570 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5A6 | 14732 bytes |
font_01_sfnt_off0000dad8.bin29ef3c450f2a1bee28658acc1e5a96639a69685e11c1b71dd322abaea74f4f00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAD8 | 11008 bytes |
font_02_sfnt_off0000f495.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF495 | 16792 bytes |
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