MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of links, many of which point to compromised WordPress sites hosting what appear to be other PDF files. This behavior is indicative of a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608532d430bea---lonixarinupeg.pdf
- https://curvy.tw/upload/files/82226040266.pdf
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609aa9e222434---93293331225.pdf
- https://motoquadro.de/userfiles/file/70771212782.pdf
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/01c2c1745a4a34ed877c6ba78ad3d2dc/90086067542.pdf
- https://farmstead.tw/farmstead/upload/files/durugudigazepinitizeri.pdf
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/82bm7qingfiulopufdmgqgncn3/dafupuxelozudoxaline.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6a071ea0a---wezusapajebivadinafux.pdf
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/8a384541cb926ddc334d00c82cffa66d/dosazibu.pdf
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/16090780ce322e---15433699551.pdf
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/eb1bca223331b1d76c001900ae9bbe0e/60905848106.pdf
- https://xigmatek.com/upload/files/6166210864.pdf
- http://kraski-chernila.ru/resources/file/pufoxorevubunulapipizewo.pdf
- http://saltokisport.com/uploads/files/98711623684.pdf
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/161124e1a7417f---lovivuxuxumexorunu.pdf
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6c7630475---kepunoziromuruwifobenefu.pdf
- https://rarahil.org.np/ckfinder/userfiles/files/bogagamoreviw.pdf
- https://skyzoan.com/cake/beta/userfiles/file/1346878089.pdf
- http://aite-materials.com/upfiles/file/vemijo.pdf
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16077273db63d8---89266540313.pdf
- http://uk-finansist.ru/userfiles/file/gexusudawevedafanuses.pdf
- https://landi-bg.com/images/file/manubum.pdf
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b794012f958---jidanumiwezesagabesit.pdf
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c3590434e48---85357846818.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=causes+of+staphylococcus+in+female
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011463.binad269201c449e7dcc4caddf9d3c76c748bf4d323bd80a70d14e10437d370f958 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11463 | 17460 bytes |
font_01_sfnt_off0001419a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1419A | 16792 bytes |
font_02_sfnt_off000159b1.bin8a102ef42c0079d7af5bc38c66e69eb5022cb7457d5af07f286253590ab3d6d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x159B1 | 10892 bytes |
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