MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and the overall structure point towards a phishing or malware distribution campaign.
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://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/0386f9369a4487c26c6fa7dffbba5e1c/miranabifakodabofox.pdf
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e5706fcabd8---30913812802.pdf
- http://abwjefferson.com/uploads/files/madedabiluse.pdf
- https://bititechnika.com/uploads/file/77716301079.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c89e5a11d1---67768036428.pdf
- http://ahkjt.com/upfile/file/xizemokatuz.pdf
- http://limoride.net/gallery/file/kugalekem.pdf
- http://aliceinformaticasrl.com/user/pages/5383420490.pdf
- http://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/16q9ppqtmi4rlmfjm7i1g9qgat/jexuvuromopolonixe.pdf
- http://cayxaotamphan.net/userfiles/image/file/nuzeburamijodipo.pdf
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/311db2389833021afd032752d053ba02/2224886084.pdf
- http://www.moyekolodin.com/files/lizaladimifuvijemepam.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077e48ae851e---rogodegoxuvoxebip.pdf
- http://bitite.lv/media/txt/122/file/nekesotofovu.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a02c705b9a---xuwuja.pdf
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b0dc421d23b---75544559824.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160827112024ea---47214645965.pdf
- https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/95616e167b46262caf31219f611411ee/63046864206.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609246e320915---59125608492.pdf
- https://malabarmail.com/ckfinder/userfiles/files/27468199736.pdf
- http://sanitaerprofi.ch/fckeditor/editor/images/file/8202367034.pdf
- https://najarshi.com/basefile/najarshicom/files/80284998277.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=how+many+missing+411+books+are+there
- 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_off0000ef55.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF55 | 16792 bytes |
font_01_sfnt_off0001076c.bin713c3ae4055d8905b38c78a19c0664b2d2483bfe23b3cfe4bdece26be6d28e08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1076C | 11064 bytes |
font_02_sfnt_off00012125.bin962d57a8cfb08332a3e49980cbbe26e052078192fac370a0ad3cd292a54a399d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12125 | 17004 bytes |
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