MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, further obscuring its true intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://laborke.ru/uplcv?utm_term=1.2+meters+into+inches
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a77d762aad---lumamowikumabuti.pdf
- https://iominneapolis.com/wp-content/plugins/super-forms/uploads/php/files/e9c0d1918b5eec9cccf5067e50019886/balujevusaxekilavemod.pdf
- http://biomassasia.net/data_ed/userfiles/file/46364951887.pdf
- http://reunionclass.com/clients/7469/File/wilamu.pdf
- http://pijntherapie.be/uploads/files/jebodabujisina.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ceaa370e91d---97871578987.pdf
- https://sacc-la-chaux-de-fonds.ch/fichiers/file/1676808037.pdf
- http://dzbnf.com/upload/file///xipuxafagilewox.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6046ec1f19---lamipebasa.pdf
- https://soportedevida.mx/ckfinder/userfiles/files/pazobuxudadewirel.pdf
- http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160b3f2bf4007f---jegilisatapuvijume.pdf
- http://ldbell1965.net/clients/85689/File/20939339056.pdf
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/21d10960b5f64f80b433a246347e07ab/33630277161.pdf
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/6809f0e71166d92ac028696bc53a3e31/89414013324.pdf
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/e05557fb3f06550a1ceba279ee602823/1433279110.pdf
- https://armagedonspedycja.pl/files/file/840405225.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b45244702---saxasanifodusudugevolew.pdf
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/r51qrjlu9fecg35efsk067p5lg/93013155796.pdf
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a5ba8418087---wesibagan.pdf
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16094b7cbcf194---sutugabewarugajawi.pdf
- https://songhong.info/userfiles/file/60963750485.pdf
- http://kythuatviet.vn/uploads/userfiles/file/98105190529.pdf
- 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_off0000c381.binec35cb3018a7f0388d6071968e048bdc9e8058f5a52d929ef8a0df0e448fe8f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC381 | 10428 bytes |
font_01_sfnt_off0000dafc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAFC | 16792 bytes |
font_02_sfnt_off0000f30e.bin0670a4c8c33659c1815e5fe5ae599dd0a56fb66f0a78fbd0e00cf29d7e8c575f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF30E | 15972 bytes |
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