MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing and potential trojan distribution attempt. It utilizes a link farm strategy with numerous URLs hosted on disposable domains, aiming to trick users into downloading malware disguised as a media player. The presence of external URIs and link farms strongly suggests a phishing attack vector.
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=download+media+player+for+android+phone PDF link annotation
- http://mail-ex.net/userfiles/file/72194709420.pdfIn PDF document text
- https://jjcfurnituremaker.com/userfiles/files/6950845160.pdfIn PDF document text
- http://theofficeplus.com/userfiles/file/70789378069.pdfIn PDF document text
- http://willbramephotography.com/7785459542.pdfIn PDF document text
- https://optimuselearningschool.com/learning/site/images/uploadfiles/vuserapefexigide.pdfIn PDF document text
- https://vegastel.eu/components/com_mijoshop/opencart/image/data/files/30364929835.pdfIn PDF document text
- http://firmen-bekleidung.at/userfiles/file/wafupunebage.pdfIn PDF document text
- https://shian-jin.com/UserFiles/files/kadiwaratemukopoxabig.pdfIn PDF document text
- http://selfmadefilms.nl/userfiles/files/625651387.pdfIn PDF document text
- http://tvsatkrosno.pl/userfiles/file/3231687945.pdfIn PDF document text
- http://fairfresh.net/assets/admin/ckeditorimage/files/21080036005.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141369791b13---42546805726.pdfIn PDF document text
- http://cudicio.it/images/file/lukadexumojubu.pdfIn PDF document text
- http://marienoellebermond.com/img/uploaded/file/49062682611.pdfIn PDF document text
- https://skopjemuzikon.pmgrecordings.com/ckfinder/userfiles/files/14978172046.pdfIn PDF document text
- http://88cpap.com/userfiles/files/16407841124.pdfIn PDF document text
- http://sabaispa.net/userfiles/file/dufur.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613acdb133e6e---22301246605.pdfIn PDF document text
- http://bagiez.com/userfiles/file/tofemakelixa.pdfIn PDF document text
- https://elperrocallejero.info/ckfinder/files/wawojajimejud.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1613904b8a5b7c---11828551465.pdfIn PDF document text
- https://lean-ds.com/upload/editor/file/fubozuletulenuzit.pdfIn PDF document text
- http://dolphinkorea.com/files/files/sogesafot.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614056bd45462---63648872912.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_off0000e3c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3C2 | 10696 bytes |
SHA-256: c7c20650f8adb7cb79ccaab169b68c234c8bc6f86de971406903b0e932620d1f |
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font_01_sfnt_off0000fc11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC11 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011423.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11423 | 16472 bytes |
SHA-256: a86eee96296027c608176a698401648847f74150629fdf336dedcac22681e82c |
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