MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to compromised WordPress upload directories, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or malware distribution intent. No scripts were extracted, but the structure and URL analysis are sufficient to determine the attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9886
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://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609830322b06e.pdf
- https://solener.info/ckfinder/userfiles/files/dejekejika.pdf
- https://pacantioquia.org/aym_image/files/89981802392.pdf
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/9o228ue7hmo7mk02c04j4vgf83/86562016383.pdf
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/e7dbb67b514379cb838d3f8932a1649c/65647297298.pdf
- http://goldendazzle.com/upload/quangtri/files/nomivotifutanapup.pdf
- http://furniture83.com/upload/files/37584996466.pdf
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/4a3030bd58d44500905c05656b99fc0e/xawuvonesumop.pdf
- http://www.jobsincrete.gr/images/_user_na/file/93102584548.pdf
- http://senseoftourism.dk/userfiles/file/kimosuwisitomavuxifofide.pdf
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/9d3f90e6f899112dfc9f121b8a9faa58/wuxotiw.pdf
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160ab3ca56edc3---misejodofalovopifuwixefu.pdf
- https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/033fa6995762380ce734cd6aeee32357/1069337991.pdf
- http://goref.ru/files/file/38091123313.pdf
- https://dovolena-jiznicechy.cz/uploads/kubil.pdf
- http://alexforstarlight.com/clients/4/41/4125d763bdae894b2c088b8c4c0f4705/File/sivafajuwova.pdf
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160c2e0e3c50a7---26169292832.pdf
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160abaebd715f3---2873876604.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/8qfdvvqnorbj59cm830kdnh8l1/13299797126.pdf
- http://aplus.to/userfiles/file/5191717747.pdf
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/tomq27rdu2967j5si2jrnjh4mt/85910308335.pdf
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/j9ies7dclllamifhr81cjqo33s/69640421187.pdf
- https://liffeyartefacts.com/fckimagefile/file/jeposetaxanezitefofuba.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=cantonese+chow+mein+vs+chow+mein
- 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_off00010fae.bin70c00cada3d5e281e540360072d42f353d451f8710f4ea560f22f835c435fe84 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FAE | 20232 bytes |
font_01_sfnt_off00014280.binc72c47cb648cf5657d780e45619c7740625ec94833159ddf905a3b9222d1aa12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14280 | 10532 bytes |
font_02_sfnt_off00015a63.bin9abca5c52a9a36cf1de7adda162b91c9574eeb5c43efede47c1beef34e41211e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15A63 | 2336 bytes |
font_03_sfnt_off00016483.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16483 | 16792 bytes |
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