MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document's primary purpose is to act as a link farm, likely to redirect users to malicious sites for phishing or malware delivery. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9806
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://wastran.ru/uplcv?utm_term=analytical+thinking+questions+and+answers PDF link annotation
- http://albino-pitti.com/pub_img/file/58484820793.pdfIn PDF document text
- https://alkalacarservice.com/public_html/userfiles/file/61840138501.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/f4sliuoh2asra1kb542q3q2mj5/9736023443.pdfIn PDF document text
- http://aiken7050.com/clients/5/51/510ae66c864a6d23552e02d1b5190e2c/File/19415826327.pdfIn PDF document text
- http://originalcheck.it/public/img_admin/file///bodejipakef.pdfIn PDF document text
- https://dbjadow.pl/attachments/file/8994176165.pdfIn PDF document text
- https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/309c50868e5f9c7a76b971e802d4c519/pojixepozusezaxo.pdfIn PDF document text
- http://france-ex.com/images/blog//file/mawamivemaval.pdfIn PDF document text
- http://xn----8sbfeahwarn6ac1adp3fb2p.xn--p1ai/userfiles/file/99747773965.pdfIn PDF document text
- https://samsungvrvklima.com/upload/ckfinder/files/zejikino.pdfIn PDF document text
- http://korean-school.hu/hangul/userfiles/file/lafemepopeveb.pdfIn PDF document text
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16079cd13d882d---53407540997.pdfIn PDF document text
- http://harryreichert.de/uploaded_pics/News/file/deninet.pdfIn PDF document text
- https://traveletrust.com/basefile/traveletrustcom/files/seligabitenutevefeda.pdfIn PDF document text
- http://ciarajewellery.com/editor_upload/file/zalapapobaro.pdfIn PDF document text
- http://haki.vn/uploads/files/51451850833.pdfIn PDF document text
- http://sugarfree-gelato.com/upload/file/dafijufadizulesijoxod.pdfIn PDF document text
- http://geometrabottero.it/userfiles/files/55098367374.pdfIn PDF document text
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1606cbf98021e0---28054179150.pdfIn PDF document text
- http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/6803875134.pdfIn PDF document text
- http://analogsys.com/uploaded/file/35196546609e9c308b2b7.pdfIn PDF document text
- https://pestresolution.pt/site/upload/file/14138613205.pdfIn PDF document text
- http://viprealestatebrokers.com/userfiles/files/vegunuludodadonubenit.pdfIn PDF document text
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/6908f41cc30aebbd0f021439de36f528/62547547144.pdfIn PDF document text
- http://ksnjl.com/userfiles/files/xiribulutiw.pdfIn PDF document text
- http://aucoindeshalles.fr/menu/file/nonojefuwedaku.pdfIn PDF document text
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8e099aa30---ridox.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_off00011295.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11295 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012aa7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AA7 | 16808 bytes |
SHA-256: 6297db5077ac4d223f225c709fd751d5086ec675a210c35d7b88655be9308f94 |
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font_02_sfnt_off00015642.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15642 | 11168 bytes |
SHA-256: a3aa3362eaac8b26fc169547da6c88f1d327e390fc471b728b5193ea55ee8294 |
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