MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to multiple compromised CMS uploads and disposable hosting. The document body was unreadable, but the presence of numerous URLs suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/6343b21bfd5ff52daacbc8b882aa155e/83752490628.pdf In PDF document text
- http://leebyunghun.org/new/upload/board/files/3543594038.pdfIn PDF document text
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/161424bb86d0fb---85076429992.pdfIn PDF document text
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613eeb4d7b93a---82226622268.pdfIn PDF document text
- https://wonwon.taipei/photo/file/vazijimesujumet.pdfIn PDF document text
- http://www.sindafaz.com.br/admin/editor/ckfinder/userfiles/files/fuxedu.pdfIn PDF document text
- https://adamant54.ru/userfiles/files/94209730527.pdfIn PDF document text
- http://nemalipics.com/5896311066.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/vedoge.pdfIn PDF document text
- http://bellina.pl/userfiles/file/dakagodoxitixatomisufox.pdfIn PDF document text
- http://wedding-box100.com/uploads/files/202109031106448240.pdfIn PDF document text
- http://madmojo.com/fckupload/file/fitopapowaduzebis.pdfIn PDF document text
- http://af.ssla.ru/images/fornews/files/seravetulu.pdfIn PDF document text
- http://debschoen.com/userfiles/file/zeruri.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/16140be68b1554---10410513097.pdfIn PDF document text
- https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/4rkhl4d9bb42qecjkh5b46a2s6/kexorotinabibagutopeb.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec729bacf2---pizidovirifajuwik.pdfIn PDF document text
- http://studioturina.com/userfiles/files/fenomuluruvufulo.pdfIn PDF document text
- http://dubilex.com/userfiles/files/80963518274.pdfIn PDF document text
- https://jvlegacyhomerepairsmd.com/nbloom/fckuploads/file/54903814579.pdfIn PDF document text
- https://red-adlay.com/upload/files/294805083.pdfIn PDF document text
- http://computergramm.com/userfiles/file/6145824559.pdfIn PDF document text
- http://spl-designs.com/ckfinder/userfiles/files/xetapuxi.pdfIn PDF document text
- http://elskup.pl/images/assets/file/28126808183.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=i+am+malala+activities+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_off0000c6ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6AB | 17760 bytes |
SHA-256: 867c7d26c8bd56b6ea624343430a5f87f5e3bd0e5bb32262092d8e3957ac4164 |
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font_01_sfnt_off0000f48a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF48A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010ca1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CA1 | 10472 bytes |
SHA-256: b696134184c1d7ff92a719160d6f965dfa2ce4b934f93a9cf3b245b7dee1e27e |
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