MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous embedded URLs pointing to compromised WordPress sites and disposable domains, suggesting it functions as a link farm to distribute further malicious content or phish users. The document body is unreadable, but the heuristic firings strongly indicate a malicious intent to redirect users to external, untrusted sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://cructi.ru/uplcv?utm_term=cara+jadi+hacker+lewat+hp+android PDF link annotation
- https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/83817696150.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613604132d07f---mugadanuwuma.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613933f977d8b---47384868492.pdfIn PDF document text
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/tu69usnqu2jtvv8nffgjp6k4c2/kuzuvupi.pdfIn PDF document text
- https://zniczekowalczyk.com/user_images/file/rewiper.pdfIn PDF document text
- http://immobiliareborghi.com/userfiles/files/11779304240.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/egk0e9q3eukep0qmnctbet7acq/nonininanirutefotutore.pdfIn PDF document text
- http://miryangpension.com/FileData/ckfinder/files/20210909_968453704F9C251E.pdfIn PDF document text
- https://apatity.verlauf-ekb.ru/admin/ckfinder/userfiles/files/moposumabeforosogape.pdfIn PDF document text
- http://www.rpv-drachten.nl/files/file/45058616753.pdfIn PDF document text
- http://centreforeffectivecoaching.com/media/file/98177322494.pdfIn PDF document text
- http://s4l.vn/storage/ckfinder/files/32300114600.pdfIn PDF document text
- http://rovitek.com/userfiles/file/fukamupebe.pdfIn PDF document text
- https://bike-accessories.supersites.gr/content/ckfinder/files/13376657617.pdfIn PDF document text
- https://shipnhanh247.vn/asset/files/16274790617.pdfIn PDF document text
- http://aasghsflqsae.handylover.com/upload/files/35385011032.pdfIn PDF document text
- http://wish-pharma.com/upload/files/11724966155.pdfIn PDF document text
- http://hanilkwanla.com/uploads/files/fusoxabekebe.pdfIn PDF document text
- https://kuni.ro/app/webroot/files/userfiles/files/68266992977.pdfIn PDF document text
- http://zoscm.zohukum.com/ckfinder/userfiles/files/58208826767.pdfIn PDF document text
- http://perila-vrn.ru/userfiles/file/6544113616.pdfIn PDF document text
- https://eric-parnes.shortex.com/ckfinder/userfiles/files/76043930238.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_off0000d712.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD712 | 17088 bytes |
SHA-256: 9ba502215d2a6ac454ff218fb19ddc228103a5c804cc728931ba2b042738a38e |
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font_01_sfnt_off00010353.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10353 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011b6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B6A | 10784 bytes |
SHA-256: d4f45d2b648932ac83307b17ee21c43e6691c4f713d02da31e2534e6a5fff17e |
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