MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF identified as malicious by ML classifiers and ClamAV. It functions as a link farm, containing numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to lure users to malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a deliberate effort to create a network of links for potentially malicious purposes.
Machine Learning
- Nyx PDF Classifier malicious score 0.9924
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://eobliecky.sk/userfiles/file/22323783717.pdf
- https://stef-nancy.fr/upload/document/56349644561.pdf
- http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/jazed.pdf
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e138962b24---kefakeb.pdf
- http://allnatureint.com/userfiles/file/texevesakasov.pdf
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b562b13a085---fawove.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f0f3d4348e---letew.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed7e68cd56---vamilenipimaberodafatedax.pdf
- https://maspacientes.es/wp-content/plugins/super-forms/uploads/php/files/1qauskic9q1ndarokongvp2q9c/gasinixawadixomo.pdf
- https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b01c8a82698---31799690684.pdf
- http://geologocarmignani.com/userfiles/files/85770632664.pdf
- http://agro-pasz.pl/ckfinder/userfiles/files/vazexukerutusolisexusiz.pdf
- http://cmepta.com/clients/7/74/74ea2f63c40943e6497cbf70acaf7c81/File/porafuveb.pdf
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/e6a43fa6cc9a11145ff2700161b32eeb/78835362390.pdf
- http://www.la-rocca.pl/app/webroot/files/files/45297563219.pdf
- http://brilspa.ro/userfiles/file///papaguxis.pdf
- http://55pluscommunityspecialist.com/userfiles/files/63547952940.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160778f51b7b2f---28164904506.pdf
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/75ibt553i86akj0r02m9nsc20r/kizilowugivuzogivewifi.pdf
- https://miet.hu/kepek/lelalolobevavukirelo.pdf
- http://driscollandgibson.com/images/edit_images/file/sarogijuvolopewavozem.pdf
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f680eb46b3---govenatif.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16089dcee7e5b0---90362218082.pdf
- http://marketypik.pl/zdjecia/fck/file/55531945768.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=find+the+area+of+the+shaded+region+semicircle
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e76e.bin385ef3f0ff0bf84ae513889d6898d061351a028a0a96306e105f68f5e05a6e32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE76E | 16152 bytes |
font_01_sfnt_off0000fcc3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCC3 | 16792 bytes |
font_02_sfnt_off000114d5.binb26bb6b76ccd374aba6206ad540e147fe304305c55c3ad1d2a64edb5d6259546 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114D5 | 17788 bytes |
font_03_sfnt_off00014402.bin8cc68361e197a2c60b011cd7c0377fbb401cfa2ec6eb63401d5304f6ec8753dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14402 | 10900 bytes |
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