MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF identified as malicious by ML classifiers and ClamAV, containing numerous embedded URLs. These URLs point to various domains, many of which appear to be compromised or disposable hosting, suggesting a phishing or malware distribution scheme. The PDF's structure and the nature of the URLs indicate it functions as a link farm, likely intended to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://nomylo.ru/uplcv?utm_term=small+great+things+pdf
- http://liveisagenix.com/ckfinder/userfiles/files/roserojuvagux.pdf
- https://solener.info/ckfinder/userfiles/files/44500775481.pdf
- https://www.bmo-agencement.fr/ckfinder/userfiles/files/32552731396.pdf
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16130c36c56dfc---48796067220.pdf
- http://matras-devison.ru/upload/file/31223988926.pdf
- http://tvkinter.com/file_media/file_image/file/pupepeguritufonira.pdf
- https://tgvl.in/uploads/fck/files/sewejotafesajawudopepemu.pdf
- http://unityproductions.com/upload/files/38861498948.pdf
- http://masterref.ru/editorfiles/file/susekupo.pdf
- http://babyshelter.net/assets/upload/files/88227852830.pdf
- https://paeonia.ch/userfiles/files/45309977489.pdf
- https://eletroluz-al.com/_IMG/img_internas/file/wajumovifimubu.pdf
- http://konberdbio.com/upload/files/kebigepapozuxowirobizugik.pdf
- http://www.gulbaharsigorta.com/contentData/file/23904724513.pdf
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139ab2184980---wisage.pdf
- http://hitmet.slektenkaas.com/bilder/file/52469986589.pdf
- http://uni-soar.com/userfiles/file/49366572410.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16141fef6b0ba6---57462720179.pdf
- http://ahjygjg.com/upload_fck/file/2021-9-1/20210901190108587142.pdf
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133d92e8a82f---3415056685.pdf
- http://windowsplusllc.com/ckfinder/userfiles/files/tawikovokexaviwoj.pdf
- https://accidentmatters.com/ckfinder/userfiles/files/19508445440.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138e2b535cef---dajabazulasid.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_off0000bc6b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC6B | 16792 bytes |
font_01_sfnt_off0000d47d.binfc720e6c6f45450047ac627530819f0b7af638a38a703f7b3baae97b73dc1e81 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD47D | 16268 bytes |
font_02_sfnt_off0000fdc7.bin70eaf7ead960feb3b7be94ec842957ae1db0827d345912b7560dca88c9a3f40f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDC7 | 10900 bytes |
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