MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised websites, suggesting it's part of a link farm designed to lead users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery. The 'SE_CALLBACK_LURE' heuristic further suggests a potential callback phishing or tech-support scam pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://www.tomasjelinek.com/img/pub/file/kedevimetodoxedeje.pdf
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/0da66e7a4c6d5e4752f83008183605d9/93253837778.pdf
- http://attlas.center/userfiles/file/15148486132.pdf
- http://veejaytechnologies.com/userfiles/file/4925258437.pdf
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/e8m8qa59ohd2mag54pq5cnefrh/zekenago.pdf
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/8pfn83iem1sg3350gsckvth2ld/78367541720.pdf
- http://n-production.com/upload/fckeditor/file/24329257418.pdf
- http://thueotodn.com/uploads/image/files/dirozafowofo.pdf
- http://heatexchangersolution.com/upload_fck/file/2021-8-3/20210803185415307619.pdf
- http://www.sport-konyv.hu/userfiles/file/33619348163.pdf
- https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/e4c994314b7077a01e4f98614c9f6cc6/97755587721.pdf
- http://1parareunion-club.com/clients/4/48/482fc251494624b09083a87f212a12d7/File/nisaku.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160913e53a918e---susavuru.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c781518866---39288184672.pdf
- http://flgr.ru/files/files/pukawuferamegowopivirex.pdf
- https://businessincasey.com.au/application/third_party/ckfinder/userfiles/files/36762134735.pdf
- http://slabowidzacy.smprzemysl.pl/ckfinder/userfiles/files/4149102844.pdf
- http://roland-toys.eu/userfiles/file/juzefodorevefimajulo.pdf
- http://nawooelcs.com/upload/userfiles/2021/06/files/210604020129.pdf
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4cbf65e33e---25174471715.pdf
- http://www.naraihillgolf.com/admin/userfiles/file/68686784452.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/692b923f33a903cc5189baf8bd40326a/dogadorajakutopagapekig.pdf
- https://absolut-fit-and-dance.de/wp-content/plugins/super-forms/uploads/php/files/bh7uncj8gvs3fsdn6hv4sj14d5/gajojejelijusufenep.pdf
- http://linker-apps.com/files/77936221867.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=web+page+to+pdf+apk
- 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_off0000c0f4.bincbe1ef2c3cd4e9026ac3a6eacf9931db4c5568b9d263e1a67a7c042ff1476548 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0F4 | 17376 bytes |
font_01_sfnt_off0000ee52.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE52 | 16792 bytes |
font_02_sfnt_off00010669.bined55da3fcaf718f92f2921b3079503444d73c9a5c6234a24d358133757e4dc26 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10669 | 10388 bytes |
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