MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm or SEO poisoning attack. The document body is heavily obfuscated and unreadable, preventing further analysis of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/84df2c0e2afbcec728790fbf82939aec/bifurewudopamatikijadaf.pdf In PDF document text
- https://micast.de/wp-content/plugins/super-forms/uploads/php/files/g1phb671gclcv3calohhjl7f1v/poxenelaxepej.pdfIn PDF document text
- https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/b2f8018e7a09756c89a31a3815ba485f/58891407395.pdfIn PDF document text
- http://sosnovgeo.ru/userfiles/file/zetotajulagotavawuzep.pdfIn PDF document text
- https://iringmalaysia.com/ckfinder/userfiles/files/zumosetubokakiwetodonaji.pdfIn PDF document text
- https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/tr4up7l5j60nf4i1elrtc5mjt8/gosovikunag.pdfIn PDF document text
- https://biothiennam.com/media/ftp/file/lopadas.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606eb8d1cb1b1---7162192137.pdfIn PDF document text
- https://www.swissfillon.com/wp-content/plugins/super-forms/uploads/php/files/d2955e86f644418b83b9a161e384038e/nixapiwidawuzugube.pdfIn PDF document text
- http://angelescare.com/userfiles/file/6399265815.pdfIn PDF document text
- http://ks-puyuma.com/CKEdit/upload/files/42465855903.pdfIn PDF document text
- http://blbr365.com/userfiles/file/1622317956.pdfIn PDF document text
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/deb76c21cd312a747f8a653903e3d411/xipelajonaxazurukunazonel.pdfIn PDF document text
- http://arcomproltd.com/userfiles/file/11885630453.pdfIn PDF document text
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2bfa8f852---16700220455.pdfIn PDF document text
- https://simondaulte.com/ckfinder/userfiles/files/27860533026.pdfIn PDF document text
- http://www.onlinetemsilci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607068e31d0d2---77170719400.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c52e0844404---sasapolerox.pdfIn PDF document text
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/4654b78084969add9091ae2477773e82/25319204988.pdfIn PDF document text
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/ffd025d146dcee1f81a7599d26cac46b/redadasalixiwo.pdfIn PDF document text
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a362c9118a1---feninosawigurejujifel.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/160ac658a49e9b---79626029937.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=ruud+gullit+how+to+watch+football+pdfPDF link annotation
- 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_off0000c449.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC449 | 10764 bytes |
SHA-256: 4c3a2ea89a9a274aee7742632abea982f530f159b51bb9c5dafc037c65eee1d1 |
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font_01_sfnt_off0000dcce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCCE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f4e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4E0 | 18020 bytes |
SHA-256: 259f23abd851f2633b2319c1c80917e1a6aa1ef140782e6e435d95df0a4f773e |
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