MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many of which point to compromised WordPress sites and utilize disposable hosting, characteristic of a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160bc9f16a4859---26537233836.pdf
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160707bc893106---43195066480.pdf
- https://osiindia.org/ckfinder/userfiles/files/94893508218.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba768ec7dc8---xupaberakirum.pdf
- http://bomtvplus.com/data/board/file/20210520195724.pdf
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/t2978oephbcdl4vf2mph8rn6d5/lowedisemuw.pdf
- http://sdds.be/userfiles/file/duxemuvivegorubekivo.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/e2u3oi3938e74mo7663plp6fab/siwufitepa.pdf
- http://tubietelbar.hu/uploadfile/3174690638.pdf
- http://zhouzhuank.com/v15/Upload/file/20216201745267576.pdf
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef158719a8---3087132859.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/a4b41a157ef8130bc94cbe48e966fd42/tepawijezemesapoxefe.pdf
- https://sy-tech.eu/file/bogagoxiwexidimoxeduw.pdf
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/7567508490.pdf
- http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/91474814110.pdf
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609df5e4f0ec2---27015863984.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0551cc3597---50858003231.pdf
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9e2161f8c---pisaxuwekosezoxini.pdf
- http://safires.cz/ckfinder/userfiles/files/62958524179.pdf
- https://agentcctv.com/userfiles/file/rewusadomoxizu.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160844306b7e84---gozokenuxivuridokim.pdf
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/42brnbe10sd91ods8q48dnfan0/xumerawotutipof.pdf
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608afd4262cdc---figibova.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078afd2d5133---91515929324.pdf
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d09144bc3---nuted.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=integration+by+parts+uv+rule
- 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_off0000f7ed.bin092e64d4ac4425f383c8139ce54123bd84bbb47936c6d4410987a4acb742137a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7ED | 10800 bytes |
font_01_sfnt_off000110bc.binb2e886df58b9f10185a8efaac55a4552a8ed24d4d0581e75c4a1128f5d743730 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110BC | 17548 bytes |
font_02_sfnt_off00013f64.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F64 | 16792 bytes |
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