MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many hosted on compromised or disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as a phishing trojan. While no scripts were directly extracted, the PDF structure and URL patterns are consistent with techniques used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://krisoc.ru/uplcv?utm_term=stbemu+pro+apk+free+download PDF link annotation
- https://privatecambodiatour.com/userfiles/file/vetonetu.pdfIn PDF document text
- https://nacituran.com/userfiles/file/75488771630.pdfIn PDF document text
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613b9fb943904---rosigaxozebemodevotep.pdfIn PDF document text
- http://npk-bypassdrr2.com/file_media/file_image/file/38095594249.pdfIn PDF document text
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/808af07cff5e1961949f12ae5fa36c1c/tonenezojebus.pdfIn PDF document text
- http://netmode.net/app/webroot/uploads/files/dazuzowobifowitadojik.pdfIn PDF document text
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/084c127c06fdc2e3b266493636476a12/23589494056.pdfIn PDF document text
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/ec6216297bb5d8d355654060b785aaec/49781982478.pdfIn PDF document text
- http://gojjang.com/uploads/files/lamefibinusop.pdfIn PDF document text
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0e78179708bd45fa26894440642dd246/45795376533.pdfIn PDF document text
- https://strings97.hu/userfiles/file/5930079590.pdfIn PDF document text
- http://tweddlefoto.com/files_contenidos/upload/files/renuteraxekesalesutavud.pdfIn PDF document text
- http://barudan.hk/UploadFile/file/20210912000923681.pdfIn PDF document text
- https://designclarf.it/file/76043909714.pdfIn PDF document text
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145bb3621b09---54032003338.pdfIn PDF document text
- http://daugiavanthienphuoc.com/media/ftp/file/74094614849.pdfIn PDF document text
- http://dongsimkindergarten.com/upload/files/misexovimasofewowaw.pdfIn PDF document text
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/393c45a97bb80ad432b46b3c89aec1c9/42337950259.pdfIn PDF document text
- http://www.dereformasenalicante.com/archivos/files/66735092662.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_off0000c2f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2F3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000db0a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB0A | 10892 bytes |
SHA-256: 098667ecde69705312f8ae795348748d998bf1e1b5d88d63abde1868ffaa7a31 |
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font_02_sfnt_off0000f415.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF415 | 17760 bytes |
SHA-256: b5dd21e0d95b4f447aa13cd6e42ff0a4aa0bd0782affd1721b1a99a876348a91 |
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