MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to compromised WordPress sites, suggesting it functions as a link farm to distribute malicious content or phish for credentials. The presence of external URI heuristics and link farm indicators further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://inwebjor.ru/uplcv?utm_term=golden+english+language+and+literature+class+10+pdf+free+download
- https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/459ivq6gp3j4hnotp4d8tppfk0/difavewebuwuzuwofupojitam.pdf
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1ba3c17fd7---fazixuxosumutelodaleb.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/0b757228a7e7f3b19d54519b91333803/kezimuxikamogipu.pdf
- https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/cj3u9ni1las5jf8g8jslak49an/56557650279.pdf
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a519a69e65e---43553636803.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e0a502b0193---6806209254.pdf
- http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/bej5eqpmac64b6eg3cn2n9i5v0/33083405551.pdf
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/16089672956b07---33644104545.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/4qealfv85k59c0jbs9ibpn1qk6/75059179982.pdf
- http://amirafouad.com/uploaded_files/file/36502342357.pdf
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/1bb2ceb636ce5a570abfc90e0e79a618/kelemowonebesaduxume.pdf
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a501e54c53e---45295921855.pdf
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/af6980436080b4f6aa4d02bd32b5d32e/woduguxeze.pdf
- http://lhs75.com/clients/46937/File/25472300337.pdf
- http://angarakshaksecurity.com/userfiles/file/11940498679.pdf
- http://aquatrustfina.com/userfiles/file/26923167854.pdf
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9a1908823---99399129721.pdf
- https://coil.hk/upload/files/32253991050.pdf
- http://ipost.mn/ckfinder/userfiles/files/79283101561.pdf
- http://paillasse.hu/userfiles/file/vomikimar.pdf
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094138357450---rofod.pdf
- http://ligneus.hu/upload/file/ruxetoje.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_off0000fe31.bin688dc1464f859dc74f39f8deb5b84abae540ed9fc9ebc2acb8bc8af1cbcb2311 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE31 | 17312 bytes |
font_01_sfnt_off00012ad6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AD6 | 16792 bytes |
font_02_sfnt_off000142ed.bin3f1b7214132a2d8ac5dff323ac9a3e735533a061cf2dae95784bdf0fcf495c43 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142ED | 11300 bytes |
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