MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with numerous URLs pointing to potentially compromised websites or disposable hosting. The presence of multiple external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest the document's purpose is to redirect users to malicious sites, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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=avatarify+app+android+apk
- http://tubelessons.net/cms_images/file/80687348468.pdf
- https://dallaslandscapedesign.com/media/files/81883738110.pdf
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16132a1fcb529f---42243034989.pdf
- http://kxqcgs.net/filespath/files/20210918043652.pdf
- https://rafaellopezehijo.com/upload/files/bujum.pdf
- https://wolfgang-photography.com/userfiles/files/61717093454.pdf
- http://moonlightmontessori.com/upload/files/54793218109.pdf
- http://otestmanager.org/club/data/userfiles/file/20210904030009.pdf
- http://intranet.uts.edu.co/portal/app/ckfinder/userfiles/files/43430131710.pdf
- http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/916253590.pdf
- http://angarakshaksecurity.com/userfiles/file/lekulizenolaxejelexe.pdf
- http://mfahk.com/upload/files/61528916788.pdf
- http://www.extramas.com/userfiles/files/vukolizixojetamigewev.pdf
- http://studiomontironi.eu/userfiles/files/43379696822.pdf
- http://ccforum.kr/uploads/file/1631287239.pdf
- http://gurolmumcu.com/userfiles/file/26971850099.pdf
- https://ontech.vn/images/ckeditor/files/tumibo.pdf
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/0ec0b54292f2d5dceaec05cdb01e92b3/nubakiwivofowivelet.pdf
- https://tideandtigers.com/ckfinder/userfiles/files/48565384066.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/6b3a7cf0ff56ac922f2f3b093e4e3d61/9798061747.pdf
- http://www.stadion-zarya.ru/ckfinder/userfiles/files/bekizamefas.pdf
- http://punaide.com/userfiles/files/winovaxozaxovedodolobiget.pdf
- http://honghuibio.com/d/files/3412123159.pdf
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16132a84c29f7e---56519039867.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d63e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD63E | 16792 bytes |
font_01_sfnt_off0000ee50.bin155c8671f26ccf0c30cbcb5fbff95ea501aa7b2ecda8788d3e78c549ba5d8e9b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE50 | 17120 bytes |
font_02_sfnt_off00011aea.bin869b246d1f1e99ff8fb9f27745d9c5f54f28ea171f8e4983fce3c20412c66aa9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AEA | 10396 bytes |
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