MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised WordPress upload directories, suggesting an attempt to distribute malicious content or phish users. The presence of numerous distinct hosts and the use of 'utm_term' parameters indicate a deliberate effort to obscure the true destination and potentially improve search engine ranking for malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/4prgheaplj85825ebov6rj2400/4163791352.pdf In PDF document text
- https://autoandtruckrepair.net/nbloom/fckuploads/file/pefimugiboloza.pdfIn PDF document text
- http://lamexmarket.com/uploads/files/xonomazigegiti.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b446b3e9139---sapejesojup.pdfIn PDF document text
- http://flightshop.jp/images/blog//file/89257709728.pdfIn PDF document text
- http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/95270922018.pdfIn PDF document text
- http://tmtechvn.com/webroot/img/files/subaxevi.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608707628b0c8---20486672741.pdfIn PDF document text
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/6a8704c96b92ae9e595197da8d1bbc56/novuke.pdfIn PDF document text
- http://wadirumshootingstars.com/userfiles/file///48533075817.pdfIn PDF document text
- http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/7d4d7755ee03fa2c6addcf30b6b83ff2/7749529532.pdfIn PDF document text
- http://locnuocvietmy.com/Images_upload/files/navelululonidojonizar.pdfIn PDF document text
- http://innovatepc.com/userfiles/file/63457082230.pdfIn PDF document text
- https://bititechnika.com/uploads/file/pizojamunamaxazutam.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/16078ed448515a---vemozerilafapazix.pdfIn PDF document text
- https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/ssglprqtc4jp7ne9q35s9oru80/62465958148.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160dc3265c5cb3---15250512336.pdfIn PDF document text
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c98607d6c4---xegofotekebiwomu.pdfIn PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/u9t5hgs883dk5e053au2lbjhda/68342841075.pdfIn PDF document text
- http://mayamalay.com/clients/874202/File/57387745948.pdfIn PDF document text
- https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/77853d8e8b6aae32f29757b66ae2e139/51362270709.pdfIn PDF document text
- http://geredekombiservisi.com/userfiles/file/5849392580.pdfIn PDF document text
- http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad8d47b03f---77658246370.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bvib9e02doucs293g89258stf3/levugejaradaruvesoxijufak.pdfIn PDF document text
- https://gs-hemeringen.de/ablage/userfiles/files/77339727458.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+use+ms+word+basicPDF 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fd53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD53 | 16756 bytes |
SHA-256: 884a09f99cccf3871f3661ce29d0a4dee8d3ca36f537b54c6891575d3cbe53ed |
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font_01_sfnt_off00012922.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12922 | 10700 bytes |
SHA-256: 578d548cec7daf5e03c95c6919bbe9437c91e04bbad8c5d918a5fb3d87bbbcaa |
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font_02_sfnt_off000141c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141C8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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