MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. ClamAV detected this as Pdf.Phishing.Trojan, and ML classifiers strongly agree. The primary function appears to be directing users to potentially malicious websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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=vestibular+ufrgs+manual+do+candidato PDF link annotation
- https://markyatirim.com/resimler/files/15123044254.pdfIn PDF document text
- https://aymsoft.us/aym_image/files/87476510324.pdfIn PDF document text
- http://besteva.com/upload/files/43389905543.pdfIn PDF document text
- http://world-housing.jp/ckfinder/userfiles/files/vanamibatup.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/ce6e43d2cf61c9e8e06fe2ec4087d422/30888853112.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16134c51cb06ba---vemikalopenajakokufu.pdfIn PDF document text
- https://perfecthospitals.org/ckfinder/userfiles/files/33850683147.pdfIn PDF document text
- https://turbooto.vn/upload/files/31113507237.pdfIn PDF document text
- http://pokebarslo.com/uploads/files/14258938236.pdfIn PDF document text
- http://inoxbienhoa.com/upload/files/90806624851.pdfIn PDF document text
- http://studiotecnicomaglio.it/userfiles/files/zopuwagivixera.pdfIn PDF document text
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135be01ab65e---tobaxok.pdfIn PDF document text
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133d346b7c05---19115191667.pdfIn PDF document text
- http://zhizhencn.com/filespath/files/20210907153711.pdfIn PDF document text
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16132ab0862da3---gelezoboripirani.pdfIn PDF document text
- http://eskuvotoszkanaban.hu/editor_up/51741551024.pdfIn PDF document text
- http://vervesimuhub.com/userfiles/file/90186809151.pdfIn PDF document text
- http://pro-elec.ru/ckfinder/userfiles/files/81797680503.pdfIn PDF document text
- https://trongtrucsolution.com/uploads/files/zanupuragadudadebekogeno.pdfIn PDF document text
- http://daehnfeldt.com/userfiles/file/6949057446.pdfIn PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/16130d2f76e766---mobonurekebadosumaxupegi.pdfIn PDF document text
- http://xn----8sbemnkjd7bfu.xn--p1ai/design/img/upload/file/witebazorakonakisu.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_off0000d110.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD110 | 18296 bytes |
SHA-256: 9a1de13af038601181f1bcca0436f30057e350fc698d88a1d82e3c9bfa234a25 |
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font_01_sfnt_off000100dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100DC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000118f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118F3 | 11028 bytes |
SHA-256: 91faf4d3cae606e33ee252e258378c1847089f7bccc186f3c6fd490fca56eccd |
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