MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress upload directories, likely serving as a distribution point for further malicious content. The presence of these links suggests an attempt to lure users to malicious sites, potentially for credential harvesting or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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 https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/pr84hl9s7bmehokm53fsm2pb55/53410907688.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160723bc8d8fe1---42079781335.pdf
- http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160767a315eacd---zozelebodudipanima.pdf
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/13ca65e76ac6818e21edd0f2b5528411/pujod.pdf
- https://butchercurnow.com/img/shop//contents/59088726109.pdf
- https://contabil-fiscal.ro/mm/file/pipowizonol.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b36a522b03---9057471121.pdf
- http://precedent.by/_newsite/images_from_html_editor/file/67252946983.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607ebaad83a23---jujow.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c859f18eebd---56100591577.pdf
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b5ea6f36d---74392805746.pdf
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160910afaa7b9c---66314285274.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa0bd2803ef---jifixugu.pdf
- https://ukdirectremovals.com/wp-content/plugins/super-forms/uploads/php/files/019c9dcf89d79a9f2cf39e031aca4988/nikoxetedugiwajasi.pdf
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/nkf9k1049qks7j70mfskb89v61/61726394155.pdf
- https://digireg.nu/upload/wawawupikibames.pdf
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/flj9l63j86huvd7emejlt27ed1/30066962581.pdf
- http://czapla-dachy.pl/public/images/fck/file/zesasowerojivomox.pdf
- https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/d961592d817250cf4f8a2e4a289ed6f6/66124493065.pdf
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/269a1cd9941d8787d9bb0a48188329d9/zunumadelemuxafasixuxemo.pdf
- https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/8a032e0cbc43b992efa05428a5fe3ec6/foxowoxeketigozelo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=can+you+eat+kale+everyday
- 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_off0000f7dc.binba848586fbc53e1ba8cb0fb7f2618abbccd4e72ff85ea23f3b095066899523eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7DC | 10384 bytes |
font_01_sfnt_off00010f92.bincd59fbd2b0018bfe8a4f7830b0ad91712361531cff7d91a21faf4a6d426c155a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F92 | 17068 bytes |
font_02_sfnt_off00013b47.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B47 | 16792 bytes |
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