MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for malicious PDFs. It also functions as a link farm, directing users to multiple compromised websites, including one hosted on a compromised WordPress upload directory. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://myatkinsonfamily.com/userimages/34662973327.pdf In PDF document text
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16144cdc1b3841---14030571844.pdfIn PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/161328b1ff337c---38318167719.pdfIn PDF document text
- http://nacyc.jp/Upload/file/wudugamutuzutog.pdfIn PDF document text
- https://schachverein-marchhoefe.ch/fcsr/news/upload/file/46929088063.pdfIn PDF document text
- https://rajakedua.com/contents/files/30524929849.pdfIn PDF document text
- http://etepi.pt/js/ckfinder/userfiles/files/59461788272.pdfIn PDF document text
- http://teedinmaesai.com/user_img/file/jibesanamajitej.pdfIn PDF document text
- http://thenikharvconsultancy.com/userfiles/file/40665028270.pdfIn PDF document text
- http://ingenermarket.ru/userfiles/lofinemasufimebujodobo.pdfIn PDF document text
- http://klwas.org/userfiles/images/file/26820602406.pdfIn PDF document text
- https://licorne-hotel-restaurant.com/userfiles/file/lobogowukelebekedope.pdfIn PDF document text
- https://turkeyinsurance.info/images/file/60260722220.pdfIn PDF document text
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/2aa145571883397dce6d774344eae13f/33866095017.pdfIn PDF document text
- http://suchanekstomatolog.pl/files/file/41161063476.pdfIn PDF document text
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/363cb62275336a9bd0c77fce7c128cb1/sazezuzipixewababisiba.pdfIn PDF document text
- https://soportedevida.mx/ckfinder/userfiles/files/15422890898.pdfIn PDF document text
- http://liveisagenix.com/ckfinder/userfiles/files/divudirapagobukajum.pdfIn PDF document text
- http://ztkammer.at/uploads/file/4313624684.pdfIn PDF document text
- https://www.newhorizonscrisiscenter.org/ckfinder/userfiles/files/78382085705.pdfIn PDF document text
- https://kurishupally.org/userfiles/file/7873756494.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+turn+off+auto+spell+in+androidPDF link annotation
- 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_off0000affe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFFE | 15948 bytes |
SHA-256: ddf1620fc2b8775b28e387c2f6be8379b136ac1c9f66571916882987d952b62c |
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font_01_sfnt_off0000d8ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8AE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f0c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C5 | 10668 bytes |
SHA-256: 26fb4d7c90780c9e1a0f163608f55ce5a83f87bd8b0a11efc17861dd9c6c8999 |
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