MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous other PDF files hosted on compromised websites, a common technique for distributing malicious content or conducting phishing campaigns. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://leuphuotcamap.com/uploads/image/files/35559894850.pdf
- http://kaowei.tw/image/files/20210526_225754.pdf
- http://soluzionebenessere.eu/userfiles/files/28471886919.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1607fae18d5606---85310416070.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/dog3aal24ucck88m1ik9947j46/rimoruzoged.pdf
- http://sisparts.pl/zdjecia/fck/file/gutofugomafiw.pdf
- https://volgogradexpo.ru/ckfinder/userfiles/files/gewuwexalez.pdf
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087ffa13f790---91477552107.pdf
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e7430b6f49---xaxafudu.pdf
- http://appartenvue.net/appart/upload/images/wadenaloguvoboroba.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f217f5916ce---tifibajaketeli.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b563662e377---79889915758.pdf
- https://sieuthimaytinhcu.vn/upload/files/80127782125.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/fd2f80d0ea88233314de22dbe4872680/jivulorerafukid.pdf
- https://www.educazionesessuale-scuola.ch/ck/ckfinder/userfiles/files/81478576341.pdf
- http://medica-eg.com/userfiles/file/dusixufolofabovaze.pdf
- http://jts-electrical.co.uk/ckfinder/userfiles/files/wabuzineb.pdf
- http://grabnerestriche.at/18219365874.pdf
- https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/8b7133b5bf30d21f253922fd9f7eb709/fefamulolin.pdf
- https://www.syria-report.com/sites/all/libraries/ckfinder/userfiles/files/37969799444.pdf
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/lvppjb1oi68rmtglmd7lvukir0/nuziviz.pdf
- http://gesgo.de/userfiles/file/padini.pdf
- http://www.lbtfilm.com/uploads/files/62046825434.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=deductive+and+inductive+methods+of+teaching+fs2
- 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_off0000e098.binf4c5d02018c797cf427cdeb01749566381e4a2438bba9845372fac5ca62b2da2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE098 | 11064 bytes |
font_01_sfnt_off0000fa0b.bin7f2b353d934139495c2b36d50e9f4c766c878ce687947c5e316e1d64912fd4ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA0B | 16888 bytes |
font_02_sfnt_off00012610.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12610 | 16792 bytes |
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