MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file 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 external websites, some hosted on compromised WordPress installations. The presence of numerous URLs, many using 'utm_term' parameters, suggests an attempt to track user engagement with potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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 https://catamma.ru/uplcv?utm_term=lombardo+odyssey+pdf PDF link annotation
- https://www.vita-organic.eu/admin/ckfinder/userfiles/files/fotifixamosefonojas.pdfIn PDF document text
- http://swhwsolution.it/ckeditor-ckfinder-integration/uploads/files/wizojomimuzatijapewab.pdfIn PDF document text
- http://loscogliodifavignana.it/userfiles/files/17202914831.pdfIn PDF document text
- http://aodaiminhhanh.com/app/webroot/uploads/files/tesozubarezabikudexusuli.pdfIn PDF document text
- http://pet.nfe.go.th/m_site/ckfinder/userfiles/files/fogawukasunuba.pdfIn PDF document text
- http://slovbau.sk/test/userfiles/file/famezatowasis.pdfIn PDF document text
- http://ssp.by/var/upload/mubiv.pdfIn PDF document text
- http://jungam21.com/upfiles/file/1631088684.pdfIn PDF document text
- http://cloudinfo01.smartevolve.com/images/ckeditor/files/67454331108.pdfIn PDF document text
- https://mfdesign.hu/files/file/16190624683.pdfIn PDF document text
- http://cosmik-kinoteatr.ru/sadm_files/telifobojalitu.pdfIn PDF document text
- http://www.gpe-el.pro/ckfinder/userfiles/files/rorapi.pdfIn PDF document text
- http://abcgsgeds.friendship-match.com/upload/files/fivibawovo.pdfIn PDF document text
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/13842bf7c8a711451f38f81f6ad05fc2/48907168247.pdfIn PDF document text
- http://travellightnepal.com/userfiles/file/ritepowugaw.pdfIn PDF document text
- http://tmkb.org.tr/ckfinder/userfiles/files/todugofodutagobozoko.pdfIn PDF document text
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/e9119f9bfb1fa4e90497eae0eb25eb4d/55007260017.pdfIn PDF document text
- http://dokturmice.com/ckfinder/userfiles/files/16846692062.pdfIn PDF document text
- http://mail.teleserviciomalaga.com/ckfinder/userfiles/files/vofofovewagag.pdfIn PDF document text
- https://watfordfairtrade.org/app/webroot/img/files/jidebapuk.pdfIn PDF document text
- http://jadever.vn/Images_upload/files/84465496130.pdfIn PDF document text
- http://mebel-moscow.com/content/xuploadimages/file/litinigumasibodojum.pdfIn PDF document text
- http://daugiavanthienphuoc.com/media/ftp/file/loluruzasurusanisirugu.pdfIn PDF document text
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/051ml0s149m3k3er21e5lo6mv0/kezufagipawaruxiton.pdfIn PDF document text
- http://coumert.com/images/file/kokubuxez.pdfIn PDF document text
- 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_off0000fe51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE51 | 17504 bytes |
SHA-256: d491b435da640ae3afda7ebf76fb431e51c94757cd68aa8e4ed3237181555ae5 |
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font_01_sfnt_off00012ace.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ACE | 10532 bytes |
SHA-256: 5a006713b37ddbc7d2119dd48076e73ca46d1cc40ade30f1690532a70f0121f0 |
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font_02_sfnt_off0001429e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1429E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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