MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress sites, suggesting a link farm used for phishing or malware distribution. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, pointing to a technique of using disposable or compromised hosting for malicious links. No scripts were extracted, but the overall structure and URL patterns are indicative of a phishing or credential harvesting campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c69c6c071ff---80729589145.pdf In PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/d4c9b80056c513954decc6e125f32501/69096360864.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160733f3c3ae55---6776824897.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160731b8ab8773---32515534357.pdfIn PDF document text
- http://orosweb.hu/ckfinder/userfiles/files/polafero.pdfIn PDF document text
- https://ensasoft.com.tr/wp-content/plugins/super-forms/uploads/php/files/a1ct4o8is6h1fus17mdfmrcvsa/xajekivalexefap.pdfIn PDF document text
- https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/d829086dff3bc396570f19d46366b831/riwonas.pdfIn PDF document text
- http://globaltruthmediagroup.com/clients/a/aa/aa8380eac451876ae6ab993bf3a720d6/File/50924197438.pdfIn PDF document text
- https://www.ndgai.com/wp-content/plugins/super-forms/uploads/php/files/hfc7jiplcaibrsfnssbulj20pe/zinosuvosagarowotav.pdfIn PDF document text
- http://barrybusiness-crm.com/ressource/devis-photo/files/79446875223.pdfIn PDF document text
- http://klefmarken.se/upload/file/jilaraxokovaxuruxa.pdfIn PDF document text
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/4d75eafc8d230afc6a8246cc490ae69b/mejorimij.pdfIn PDF document text
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6d758c1cdc---2899941563.pdfIn PDF document text
- http://geoplan.su/userfiles/file/xupofivanijukab.pdfIn PDF document text
- https://ddshower.com/ckfinder/userfiles/files/54148407350.pdfIn PDF document text
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/56bf5bf717b3317a21f67397d0202c8e/41010139223.pdfIn PDF document text
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd0c36bb2b3---65635268303.pdfIn PDF document text
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609db4bb5c85c---17463315838.pdfIn PDF document text
- https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/f1e02f8c50aa55945fb75ccd002e97c7/39774326033.pdfIn PDF document text
- http://toeicspeaking.net/_UploadFile/Images/file/niranosakopadex.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/0455056cd380e394fcc55de55eccad59/bimipobovo.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609a61545ff44---4274946944.pdfIn PDF document text
- http://gorisum.net/fckeditor/upload_file/file/kozekulikep.pdfIn PDF document text
- https://mls.lighting/wp-content/plugins/super-forms/uploads/php/files/51796819b2fea5f71da4e94bdd9bf7ce/mifalupabemujotazuka.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=two+wheeler+sale+agreementPDF 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_off0000e5ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5AE | 16608 bytes |
SHA-256: ee6eb05583fe06f039d8367c9ad57662754deb62e157f29aad063fa0994d4da6 |
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font_01_sfnt_off000110c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110C3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000128da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128DA | 10512 bytes |
SHA-256: 7a6006f35f827723e6e5ddbce5eda05efccd265e9ddd9029b555f1a6097fd2d9 |
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