MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farms on compromised CMS uploads strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://nomylo.ru/uplcv?utm_term=money+words+that+start+with+s PDF link annotation
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/4585b630670f4abdfb4092cfb86f76a2/29256939937.pdfIn PDF document text
- http://arcadia-fitness.es/userfiles/file/balite.pdfIn PDF document text
- http://limobebe.com/userfiles/files/kubokadapogukedamibizik.pdfIn PDF document text
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcc79e772bd---39679987623.pdfIn PDF document text
- http://arci-mp.fr/admin/File/vubukisezowukizosibavuno.pdfIn PDF document text
- http://vksraja.in/fckeditor/upload/file/jiliwanebosumudizesukajur.pdfIn PDF document text
- http://ballstonfamilymedicine.com/clients/861402/File/bipomonemexefu.pdfIn PDF document text
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160bfc8eb2b7cc---80884481899.pdfIn PDF document text
- http://burfel.ru/upfiles/files/94299867766.pdfIn PDF document text
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607bee4aeb9d6---xebetewipis.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a2fbcb4cd4e---loxobezunirugoxesuxo.pdfIn PDF document text
- https://zhansq.cn/upload/file/walewinorolemuzunot.pdfIn PDF document text
- http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/1607e837b98a04---rukulakodoxiwefun.pdfIn PDF document text
- http://vssteel1999.com/ckeditor/userfiles/files/35864607409.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/70089efc7c040760cc4b099c25cda307/lajadiwenapozara.pdfIn PDF document text
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/5074640e137432cd13b29cfb6880ddcc/95473226707.pdfIn PDF document text
- https://www.borzabadi.com/ckfinder/userfiles/files/rubowilamebutopidapaseb.pdfIn PDF document text
- http://eska-lift.ru/userfiles/file/41116508951.pdfIn PDF document text
- https://biorenta.lt/ckfinder/userfiles/files/mexonabapimudozixozo.pdfIn PDF document text
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/8fef8a726cf5cd2fe6c0494567d84c37/72867917278.pdfIn PDF document text
- http://888chji.com/userfiles/files/61923458380.pdfIn PDF document text
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160ba0648ee94b---zixometubixesujutuvu.pdfIn PDF document text
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7322242712---59523861448.pdfIn PDF document text
- http://tpdw.pl/userfiles/file/54849543591.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cccc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCCC | 16848 bytes |
SHA-256: 84296d15e1bc8a69119a88bc7eddfa2685cf0043aea61c6ccbf2daf4c6f59d0d |
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font_01_sfnt_off0000f7ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7FF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011016.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11016 | 10492 bytes |
SHA-256: a7107590565783f36436f3a694f9d92cf585eddbb1027cd5566fcfef941bbddb |
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