MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple potentially compromised or malicious websites hosted on disposable domains. The document body is unreadable, but the overall structure and URL analysis strongly suggest a phishing or SEO poisoning attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
Heuristics 6
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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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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://taborcapitalpayment.com/clients/d/d0/d0a3925ee25d0adc8806453b18bccccc/File/28796931236.pdf In PDF document text
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/aac92459a6b7bb1bc010a28883e03310/taxelapek.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b218b0ad589---zatozuwasulejajupufe.pdfIn PDF document text
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a517bb2138f---24268667589.pdfIn PDF document text
- https://laughteronlineuniversity.com/images/upload/files/37914961552.pdfIn PDF document text
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e6dc65d0a5---majulisugifupilaxera.pdfIn PDF document text
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/99debae4982ec0c8855c8367820bdfb1/34247517223.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/70456ca51fa1622f6d487d946f13f16b/61187268815.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160fe6c47a7d4b---54464046807.pdfIn PDF document text
- https://globalmediaminds.com/uploads/files/13980139727.pdfIn PDF document text
- http://farmaciacogliate.it/userfiles/files/sisuxabiwonivinizasu.pdfIn PDF document text
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070d02fe84ac---58531994172.pdfIn PDF document text
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/5f906882acf43c966c6251a43d24292f/ratosovulafigokujopuwo.pdfIn PDF document text
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa2d8558da0---45252057251.pdfIn PDF document text
- https://nadinerogger.ch/userfiles/files/70289606498.pdfIn PDF document text
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608bcbea99e4b---72488842995.pdfIn PDF document text
- http://atek-ent.com/upload/file/37278317542.pdfIn PDF document text
- http://dchs1961.com/clients/871949/File/pusorusisal.pdfIn PDF document text
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/16089726b8a397---rakefo.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-4-30/20210430181800803664.pdfIn PDF document text
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/6k1d1kld62bh4f25d1l3735ejc/91625060334.pdfIn PDF document text
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/2mu4tkres9uf54k7affiao0dvj/ribemoxu.pdfIn PDF document text
- http://ooexperience.be/assets/Image//files/92772338385.pdfIn PDF document text
- https://communeouchamps.fr/userfiles/file/buwakujekelis.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=kenmore+elite+top+load+washer+repair+manualPDF 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_off0000e54f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE54F | 16932 bytes |
SHA-256: 3edde7447ed04102aa8a52ac72096e9cab50fa5ee2115a94282c97f82e43b85c |
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font_01_sfnt_off00011169.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11169 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012980.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12980 | 10836 bytes |
SHA-256: a2f88e63fa84662c862e91f9e5a62eef65426cefe8a0b50e20ca0cf074fa8011 |
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