MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to compromised WordPress sites hosting further PDF files. The presence of embedded URLs and the nature of the link farm suggest a phishing or malware distribution scheme, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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 http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c28798e1be9---24882014905.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/a6ej0jtr1ec5o68cj37ofaugld/zugega.pdf
- http://jucal.es/images/file/ritot.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609471d164610---gufumisoxepewapizebo.pdf
- http://rkmaster.ru/uploads/files/88324218778.pdf
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/39f8d4036ffaa9e41e5838a49240c8b3/nebowekuzu.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/pram116t5f4n581mimv10kuf1l/97259733996.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609cb15a02c64---93520643529.pdf
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a78cb845d66---35925972457.pdf
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160850d68d44c6---5268639885.pdf
- https://noihoithanhtuan.com/media/ftp/file/kevigaf.pdf
- http://mebco.ru/images/file/18169645244.pdf
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/c4ce65c54d63dcae8054afb5cc2e3813/kusopajegibanozomosim.pdf
- http://nfrostov.ru/upload/files/gidajivegapo.pdf
- http://ventilatoryzlin.cz/images/file/wosomina.pdf
- http://uptownchantilly.com/uploads/files/dotavovisov.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6195b042d---wowetewem.pdf
- http://arlingtonhigh1961.com/clients/e/ef/ef36f0800c0a5d5a0b00d5ecc8c3c6da/File/27610594318.pdf
- http://amuseonline.com/absite/userfiles/file/koririp.pdf
- http://sakuragiramenandsushi.com/uploads/files/faposa.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607064a75d5ff---kelugovukevusosidu.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608c7fccb5f78---63551304572.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=minecraft+paid+game+for+free
- 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_off0000f466.bine265e3ee37d1e26ce5eb91ab4bcb0d531b4833c5cf682b232c07ae156c07457f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF466 | 10744 bytes |
font_01_sfnt_off00010cdd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CDD | 16792 bytes |
font_02_sfnt_off000124ef.bin79bff76c80367487ce779882a4dc30092473a3d34d5f88b1e56cad7cc113af3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124EF | 16920 bytes |
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