MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised WordPress upload directories and other disposable hosting sites, suggesting an attempt to distribute malicious files. The presence of external URIs and a link farm indicates a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://diacritic.org/travel/app/webroot/img/files/32555357589.pdf
- http://beijingxinzhi.com/userfiles/file/20210523121223_1033296226.pdf
- http://botosani.ro/img/uploads/file/81403262788.pdf
- http://finproekt-msk.ru/userfiles/file/mokevevuxoxag.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffe27683de---83795928098.pdf
- https://penal-garazh.ru/files/69154970677.pdf
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/tqbffr7s4qbqg1ln3ri2cr87ha/24431799867.pdf
- http://ahchala.com/img/file/xudikukazubikamiwos.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/003p4uojrfek225n5k15qanfkb/25283339849.pdf
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/tfg90vnhdbc83vf93bfk9unvl1/79294877086.pdf
- https://cafemocion.com/userfiles/file/futube.pdf
- http://inwallendorf.de/userfiles/file/nalavet.pdf
- https://kitapkapla.com/upload/ckfinder/files/sulefogapizu.pdf
- http://luxmeterthai.com/ckfinder/userfiles/files/sowetajajukanonomisotide.pdf
- https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/ab6d205c7ecd9d71cd8a6acf5d2238ce/lawiduxugefote.pdf
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606fce32a17b3---doxalijeg.pdf
- https://amblamy.ee/upload/file/39107929172.pdf
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/3523748fbc651a662e861b6c2ddf30c3/lerisugokeguwinabogun.pdf
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b24b61d16a5---duloxipejupapososatesab.pdf
- http://karimeh.com/public/userfiles/file/11138913931.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3dddacac9---28360014955.pdf
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160a31a8b69bb2---zalogulodomatu.pdf
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/5c3c469f8afc1afafa70ad7c8d3225c3/30142747509.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2739920927---26205882962.pdf
- http://ccspatti.org/userfiles/file/rekaxowumefajos.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=abbyy+pdf+converter+software+free+download
- 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_off0000d93e.binb35d2a8aa2d297226688744975bcaa80cda3d6f3bbe862a5749d533285e35348 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD93E | 10908 bytes |
font_01_sfnt_off0000f289.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF289 | 16792 bytes |
font_02_sfnt_off00010a9b.bin1f46524c5cf5130c45802add64e7900978387e0e56d06947af4e7f61c42ebf8b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A9B | 17116 bytes |
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