MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV and an ML classifier as malicious. It contains numerous embedded URLs, many of which point to disposable domains and are structured as link farms, suggesting a phishing or malware distribution campaign. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a tactic to obscure the true malicious intent. No scripts were extracted, but the overall structure and heuristics point to a malicious document designed to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 5
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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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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=matematicas+2+juan+antonio+cuellar+pdf PDF link annotation
- https://soccerauquebec.com/userfiles/file/muxosujegutesakatak.pdfIn PDF document text
- http://abwingsmd.com/uploads/files/24620695903.pdfIn PDF document text
- http://groupementpecheduloir.com/ckfinder/userfiles/files/nixemavinawe.pdfIn PDF document text
- http://wyadonline.com/userfiles/file/34851552035.pdfIn PDF document text
- http://tyextractor.com/d/files/60963966762.pdfIn PDF document text
- https://gornjastubica.hr/files/baluvurunenisobilutixurol.pdfIn PDF document text
- http://giaexploring.it/userfiles/files/jodidakenunijukutosera.pdfIn PDF document text
- http://baoveantam.org/upload/files/72750253932.pdfIn PDF document text
- http://myhomeinparis.com/userfiles/files/88303190210.pdfIn PDF document text
- https://honkakuji.jp/honkakuji/images/ckfinder/files/jejebof.pdfIn PDF document text
- http://podwierzba.eu/ckfinder/userfiles/files/78596556793.pdfIn PDF document text
- https://bloomeng.com/uploads/nidetomifukeg.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d69441a014---38140138363.pdfIn PDF document text
- http://vankouwenenmastop.nl/UserFiles/file/zadidemavepuzawomul.pdfIn PDF document text
- https://gifarlcm.com/upfiles/editor/files/77567663748.pdfIn PDF document text
- http://avvolodin.ru/upload/file/vowet.pdfIn PDF document text
- http://myepres.com/HotelEstimator/userfiles/file/21977593408.pdfIn PDF document text
- http://ranchobg.com/img/file/divetiwovitez.pdfIn PDF document text
- https://cqhuaan.myhost360.cn/upload/files/09-01-07-37-54-95.pdfIn PDF document text
- https://rotitelor.com/contents/files/sekopemudajukati.pdfIn PDF document text
- http://aeronautike.com/userfiles/file/redozirubaravusuzuwopogob.pdfIn PDF document text
- https://icoachyou.biz/images/ckeditor/files/91842217863.pdfIn PDF document text
- http://eurolocal.info/sites/default/files/images/file/gorixe.pdfIn PDF document text
- http://kesherisrael.com/uploadEditor/files/devuritelefawamusawofuno.pdfIn PDF document text
- https://jvlegacyhomerepairsmd.com/nbloom/fckuploads/file/46633024769.pdfIn PDF document text
- http://jtylek.pl/Upload/file/6189379202.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_off0000b82e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB82E | 18380 bytes |
SHA-256: 5f485c75dda824cad46cc1064cb6e21a0dcdc25ee177c5f0cc4aa9971d73e0ae |
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font_01_sfnt_off0000e84e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE84E | 11124 bytes |
SHA-256: efc796239c1f15b9c0739f9ae3a1bacd38072c5ff1d33af0f160811f4d8f24e0 |
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font_02_sfnt_off00010247.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10247 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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