MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, forming a link farm. These links are likely intended to lure users to phishing sites or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://wastran.ru/uplcv?utm_term=compliance+program+guidance+manual+for+fda+staff+drug+manufacturing+inspections PDF link annotation
- http://pokwuttibut.com/file_media/file_image/file/delanubiran.pdfIn PDF document text
- http://studiotecniconuti.it/userfiles/files/68157147240.pdfIn PDF document text
- http://nutranghongngoc.com/media/ftp/file/87883558411.pdfIn PDF document text
- http://ammk.sk/userfiles/file/12869823518.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160798d7ee1d5e---57069896646.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16102b0f9f2971---44840040952.pdfIn PDF document text
- http://yuanjen.com/ckfinder/userfiles/files/faboxemitodakelozugobefe.pdfIn PDF document text
- http://samafb.org/uploadfilefiles/32330144568.pdfIn PDF document text
- http://fine-trading-knotwork.de/uploads/media/93774087102.pdfIn PDF document text
- https://lapakunited.com/contents/files/kowavufut.pdfIn PDF document text
- http://georgeandmaryjones.com/clients/f/ff/ff66b05efb8f16ea353d8e6908bb1429/File/6937205567.pdfIn PDF document text
- http://plymouth-logs.co.uk/ckfinder/userfiles/files/53136330085.pdfIn PDF document text
- http://jenan.com/ckfinder/userfiles/files/pugesijuxex.pdfIn PDF document text
- http://dijladentalcenter-qa.com/userfiles/file/80228736029.pdfIn PDF document text
- https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/kmijc8u24m9ronkbqq6hsj87kb/zulilefamuvigogolixas.pdfIn PDF document text
- http://hanilkwanla.com/uploads/files/zaduromed.pdfIn PDF document text
- http://aqs-group.it/userfiles/files/59845093828.pdfIn PDF document text
- http://ricoconsultingattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/94582472054.pdfIn PDF document text
- https://mmszke.hu/files/file/dolupujufukamagib.pdfIn PDF document text
- https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/941fbbc8608c9bf7514fc6d5a24a1ffe/gatulumuzurefopujezosakaz.pdfIn PDF document text
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/ej7d9s6trj8bpb065khhpem3g7/davudesexafodu.pdfIn PDF document text
- http://mppscstudy.com/admin/usercontent/file/lokaxajibofetinuwop.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_off00010b79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B79 | 11092 bytes |
SHA-256: e93f957f867d38383ae98962327169c7c08bb675d6a89b1e5809e1f3b36b4777 |
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font_01_sfnt_off0001251a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1251A | 18820 bytes |
SHA-256: 9fa9e554fbbc8b4b4d7bc05a7f8b871288df75c6644d86108e97df8c93ab01d6 |
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font_02_sfnt_off00015656.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15656 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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