MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with multiple URLs pointing to compromised WordPress sites, likely serving as a lure for users to access malicious content or phishing pages. While no scripts were directly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users, potentially to a second-stage payload or phishing site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/311aaee9c53f70d80609dd813c3f6bf0/gimopenewopep.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a978ddebe32---27068426544.pdf
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/l9jbednkd0m3k4a3eh76jd22ug/renef.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef1ede6cbc---15104575717.pdf
- http://dansecyr.ca/pdf/file/zokor.pdf
- http://dajuicebarus.com/uploads/files/22696535837.pdf
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b93bd36ae64---94442718831.pdf
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aed8f88a49---xojukuxagujedamaxemelafox.pdf
- http://chothuexehochiminh.com/userfiles/file/263400980.pdf
- http://trendybiz.in/usersfiles/file/9910869808.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160741c866e886---kinafanewutokupale.pdf
- http://originalcheck.it/public/img_admin/file///kulidorixakelaxamipe.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a6e213c937b---64085153916.pdf
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/5ae3cdbd74ce42950af5b4783c98937a/jemebugozomaj.pdf
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/li4q4vqm5s8o9gsiume5m9asfg/nakep.pdf
- http://armanetti.com/images/50801489592.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-6-29/20210629145328923686.pdf
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e0cdc764376---4936309185.pdf
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/37dbmft7i9ke540humvumtc2k7/45835265116.pdf
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/0un4mgtaj9o3k1g95lkk4urmq6/kikukokobewoduzevuzej.pdf
- https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/0ps9b89qnple85n7jnj1apvuio/nusepumor.pdf
- http://lycee-elm.org/userfiles/file/77066005823.pdf
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096e665b1f86---kofoboloduku.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=cisco+cybersecurity+course+answers
- 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_off0000fd23.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD23 | 16792 bytes |
font_01_sfnt_off0001153a.bin9ba66df35af562d62d5ea3811f7ccc103cc657d7568b38dced52147daaefba44 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1153A | 10648 bytes |
font_02_sfnt_off00012de5.bin7a76a55f680e44fd5acfd478b824f749953cd4e603e9a6de437adbebe73a794b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DE5 | 17536 bytes |
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