MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The file contains numerous links pointing to compromised WordPress upload directories, suggesting a phishing or malware distribution attempt. No scripts were extracted, and the document body was unreadable, but the link farm structure is indicative of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9944
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://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607d08e7b3efb---56935616982.pdf In PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071d605e65f4---jigojumemivijanejesizorad.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/dea8c06e2695c939d9593ac67fb43f3e/28869431488.pdfIn PDF document text
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/gsugapt8urs7vd3ug2hpjb5lr2/kewesivozojuworumizij.pdfIn PDF document text
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c44fd7b75da---51335110838.pdfIn PDF document text
- http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/np3p5c3bk7pja1ed2as6lkmoo5/74529046259.pdfIn PDF document text
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8770eb13a---23939538233.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16080f1d56c5d2---74787350763.pdfIn PDF document text
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080dcb2bcafb---xafevidalesolosa.pdfIn PDF document text
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adbbd86538f---demusi.pdfIn PDF document text
- https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b44d3151e78---femukatepodexiloxos.pdfIn PDF document text
- http://eaeocs.com/clients/c/c7/c75ed17bfa54634cfc1039f1b599a7e7/File/97799203127.pdfIn PDF document text
- https://t2sc.me/userfiles/faremejekevut.pdfIn PDF document text
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607991aa53321---20676386005.pdfIn PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/090d803b9b4988ba807cbbe5ca49f0a5/dotebefa.pdfIn PDF document text
- http://labcoop-jsc.com/wp-content/plugins/super-forms/uploads/php/files/cinh0gpahkhcebn14vc6jp3uah/56146462940.pdfIn PDF document text
- https://aviatroglo.fr/IMG/file/71254354941.pdfIn PDF document text
- http://inlovehuahin.com/file_media/file_image/file/58420289747.pdfIn PDF document text
- http://wajl.net/img/file/2021620132919.pdfIn PDF document text
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff50c72fcc---34761766717.pdfIn PDF document text
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5d186cf54f---54764339556.pdfIn PDF document text
- http://hjtech.org/admin/upfile/file/17695115689.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=one+hundred+sixtyPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dfb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFB0 | 17396 bytes |
SHA-256: d4a5dcb865181905323a0cddc81859ba939131b447a48cf421393d09133395d8 |
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font_01_sfnt_off00010d58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D58 | 10360 bytes |
SHA-256: 247343e5d60790d0f4d2018ce980c9291eedeba071258c2f1d24519ee89c1d3f |
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font_02_sfnt_off000124c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124C5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_03_sfnt_off00013cd2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CD2 | 3772 bytes |
SHA-256: 093bd40600af12c998e5fadeddbf9e943bb6f44aac9de69a5a2b665364e45606 |
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