MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://ketchas.ru/uplcv?utm_term=skills+worksheet+critical+thinking+analogies+answer+key PDF link annotation
- http://polyalpan.hu/_user/file/64354497137.pdfIn PDF document text
- https://connatlas.com/home/conn/public_html/ckfinder/userfiles/files/fanakotasomawagunotu.pdfIn PDF document text
- http://wawabed.pl/uploads/userfiles/file/13132871677.pdfIn PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/51b9348bb87a29ff7dd5afce9b769c95/80332326856.pdfIn PDF document text
- http://haiannweb.com/uploads/files/41567010287.pdfIn PDF document text
- http://chalappuram.com/userfiles/file/lajenejuwowugafigaga.pdfIn PDF document text
- http://studiotravenzolo.it/userfiles/files/makegiridunaf.pdfIn PDF document text
- http://xn--80adic7alej3d.xn--p1ai/userfiles/file/4015333121.pdfIn PDF document text
- https://eownauto.com/uploadpic/files/65472859780.pdfIn PDF document text
- http://zs-oilfieldequip.ru/d/files/21109342031.pdfIn PDF document text
- http://www.giuseppe.ru/ckfinder/userfiles/files/84223267012.pdfIn PDF document text
- https://hyosung-gulf.com/uploads/file/xitunumawekuvakanafemi.pdfIn PDF document text
- https://nsck-cykelmotion.dk/ckfinder/userfiles/files/2595061446.pdfIn PDF document text
- http://kennycojewelry.com/userfiles/files/202109/1630493483.pdfIn PDF document text
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/161382a17aad46---16512333204.pdfIn PDF document text
- https://www.marjojaspers.nl/ckfinder/userfiles/files/kowitedeg.pdfIn PDF document text
- https://www.mppoa.cloudlinesystems.com/assets/ckfinder/userfiles/files/rafazonusawoduxova.pdfIn PDF document text
- https://digicpictures.com/downloads/14408799454.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/ivuhk4s3v6eql1ei75214p5561/9701147627.pdfIn PDF document text
- http://mynotary.ca/sites/all/sites/mynotary.ca/files/30919546256.pdfIn PDF document text
- http://hissekurban.com/resimler/files/pogejamipokowibobudubo.pdfIn PDF document text
- http://arisutour.com/ckupload/files/fozovuk.pdfIn PDF document text
- http://dtpokebar.com/uploads/files/59149377254.pdfIn PDF document text
- http://timnhanhonline.net/upload/files/sozokologoduf.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_off0000e496.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE496 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fcad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCAD | 10876 bytes |
SHA-256: 854383d61cf5b894354ca8dbd31804d221539a925a90a0d6850f71e45e5f471b |
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font_02_sfnt_off000115d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115D4 | 17292 bytes |
SHA-256: 11dcac4ab1b57cac6fe78a7ea5c9fd3482a7860ff252fb943470fa46509de526 |
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