MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to potentially compromised or disposable domains, a common tactic for phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or delivering a secondary payload. The presence of external URI heuristics and link farm indicators further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://inwebjor.ru/uplcv?utm_term=how+to+block+ads+on+chrome+iphone PDF link annotation
- https://www.mftelhas.com.br/adm/Editor/ckfinder/userfiles/files/nebusewoluv.pdfIn PDF document text
- http://nofatrans-int.com/userfiles/file/27034086004.pdfIn PDF document text
- https://lose-weight.tw/upload/files/9407890565.pdfIn PDF document text
- http://avtosfera28.ru/userfiles/file/vetovaze.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/161476ebba4024---9650425039.pdfIn PDF document text
- https://rewaqousha.net/userfiles/files/83654078018.pdfIn PDF document text
- https://mcsfood.com/images/file/ruzazoravurikifo.pdfIn PDF document text
- http://vekosgroup.ru/userfiles/file/xosinaxolubofujifi.pdfIn PDF document text
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614981d2c4c21---kaguxewoxuxidozonoxe.pdfIn PDF document text
- http://elitk.ru/_files/bibiwixewikurisasuve.pdfIn PDF document text
- http://www.accessibilite-salle-eau.com/ckfinder/userfiles/files/60952265376.pdfIn PDF document text
- http://fujieshubao.com/zk/UploadFile/file/2021091905304373499.pdfIn PDF document text
- http://bresky.cz/res/file/10264666975.pdfIn PDF document text
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f89152c837---50531692559.pdfIn PDF document text
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161448e965b22b---zupinipak.pdfIn PDF document text
- http://realestatemiami.com/userfiles/files/101086583.pdfIn PDF document text
- http://chemtron-vostok.ru/media/file/30036446331.pdfIn PDF document text
- https://simon-daulte.com/ckfinder/userfiles/files/jirodidogotufewiboniz.pdfIn PDF document text
- http://abpjse.news-read.com/upload/files/58905312375.pdfIn PDF document text
- https://careerexpo.alljobsinliberia.com/ckfinder/userfiles/files/94522968950.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_off0000d413.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD413 | 18236 bytes |
SHA-256: d181e7d9ff5d954440f480a94dad2a5963663ae754db0fc7664f15bc590bfd87 |
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font_01_sfnt_off0001039a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1039A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011bb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BB1 | 11088 bytes |
SHA-256: d959be5a09d7167c214bacdcfae6aa20f4a4d1cd2a9f67ede316d5c02b077b00 |
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