MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links pointing to compromised CMS upload directories and disposable hosting, indicating a link farm designed to redirect users. The PDF structure itself is also suspicious, with duplicate object bodies, suggesting an attempt to obscure malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 http://taxilitomerice.cz/ckfinder/userfiles/files/dijux.pdf
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/fb81bab0a8d64c69105f628433c582fd/xives.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a33b78b5f84---fasedufapi.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16081d42aa4c26---vosojezusorimuxezij.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d79ac59996c---90837025197.pdf
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a5a9638daea---18236874235.pdf
- http://xn--2-140-swe8h.xn--p1ai/files/zirivaxudiwitagezokamuze.pdf
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc9f74dc56---nozalon.pdf
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/5upbvncun101dh5u3n7p8hv894/kepefesunoguvuloluwuge.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/klt4qsa23nsoukj5mhcouspao9/9656008396.pdf
- https://premiumtrade.ro/ckfinder/userfiles/files/pozavu.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072583731110---bipefan.pdf
- https://tractorpulling-emmeloord.nl/upload/file/78040190204.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/625d4232306b4a3695be2902e81d63ac/12305538109.pdf
- https://denimder.org/resimler/files/93265607364.pdf
- https://chp-travel.ir/data/file/41225711727.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090f2cd54526---pokugixefi.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/19411c94f2dd42b7e99b5b350f2b564d/jerurafufojetevarilamodin.pdf
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc575a1bc9---98371095210.pdf
- http://zulassungsservice4you.de/bilder/file/befepasi.pdf
- http://turinhotelcompany.com/userfiles/files/vowukewisel.pdf
- http://velocimapper.com//webfiles/file/rugotadazolofamasifudu.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1607120e9cd84e---witadax.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=the+all+american+rejects+lyrics
- 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_off0000dd71.bin3c6e81e331f538c275ecfab8a9e782214763db718dcb7c62151ae54a7e423ebf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD71 | 17320 bytes |
font_01_sfnt_off00010aab.bin96bb80a54016d7a91555b8b92cabbb96fe2c9265834f3991730814dd90765cef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AAB | 10584 bytes |
font_02_sfnt_off00012293.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12293 | 16792 bytes |
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