MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these link farms and the overall structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 http://bbmpva.nl/fckassets/file/22415476923.pdf
- http://geyuping.com/geyuping/uploadfile/file/2021091000211073499.pdf
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/bkhlah0jq7aboik4nk4laj953v/muwufokaziramubemedukimoj.pdf
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/7604f307eaad5592d6d04c175a313c9e/gigufir.pdf
- http://drivescuolaguida.it/userfiles/files/wudobaw.pdf
- https://jjpremiers.com/files/98439445387.pdf
- https://houstoncoinclub.org/FCKeditor/file/97120205614.pdf
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1614bf2a4cd4b9---49984180164.pdf
- http://museodegliarazzimarsala.com/userfiles/files/71173770706.pdf
- http://itaxabc.com/userfiles/file/20210924044855_1568043142.pdf
- https://fruitssupplier.com/app/webroot/img/files/warezurujunomeramusazawub.pdf
- http://ksiclubcom.ksiclub.org/svnprojects/DHD/Source/images/files/41258476910.pdf
- https://alexspa.pl/userfiles/file/6083864205.pdf
- http://kriosispl.com/cote_dor_import/admin/ckfinder/userfiles/files/xiwumoxaxetejuvoxoto.pdf
- http://opersan.com/file/batezet.pdf
- https://bachson.net/upload/file/notimetuvugoxu.pdf
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/161359b3feb397---88581755518.pdf
- http://terralis.eu/catalogue_dynamique/file/selilomumozemerudekoko.pdf
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/4552007a3b144e4ce103e17ba7e6f4a8/66728396344.pdf
- https://pasarantogel.com/contents/files/25484189035.pdf
- http://csigikes.hu/admin/fck_upload/file/mimavibenuw.pdf
- http://bsl-trans.ru/admin/ckfinder/userfiles/files/60083549276.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=kris+jenner+before+and+after+plastic+surgery
- 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_off0000afbf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFBF | 16792 bytes |
font_01_sfnt_off0000c7d1.bin168c1152230f86bec852072de984796bd729dfd25488cf5bdca51ee9a71d5570 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7D1 | 15380 bytes |
font_02_sfnt_off0000eeee.bind0ee1cae70f3db19416e2140b03077492c8fafff22f414c317a5fc15df5bb0c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEEE | 11268 bytes |
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