MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it likely contains malicious content. The file functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites. These links are likely intended to redirect users to malicious sites or for SEO manipulation purposes.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://catamma.ru/uplcv?utm_term=ian+hacking+the+social+construction+of+what+pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160c08dc25ddb9---tuzawexutitimatarofevelep.pdf
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/c9bbc44fc8b0e2ac016e9edbb7c2b468/togobobitiwepegifod.pdf
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/89ffc987d7f7cfb717127a1db9adc48e/86228583916.pdf
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/8b9a5a61f5b6f178126653d1388bd78b/dudenonesere.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606d16eb95344---34836460982.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5d56ddf6c---bagokifabok.pdf
- http://ytbozhuo.com/upload/file/260455359053.pdf
- https://zoorichi.com/temp/fckeditor/file/buwomod.pdf
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a44b089404d---11357154710.pdf
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5479e2f285---tibikufukuzopalako.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090adb5350d7---funug.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/a5a651d340829e2c952b6cea4184b231/xuwemezajiwux.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/3ab2b756a079e339923c11dc4663d8cb/xokelejomemafaj.pdf
- https://ctners.com/ckfinder/userfiles/files/91174815058.pdf
- https://englewoodgrassfarm.com/wp-content/plugins/super-forms/uploads/php/files/d3f6af133749b28eb163613307e8893e/tizavinediwesez.pdf
- https://ive-cal.it/file/taxexijuxopulujiteruxan.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/ouab8j4spnnaaeu1odg7j9jga7/padiruboge.pdf
- https://saatyapi.com/upload/ckfinder/files/28097754515.pdf
- http://euredit-editions.com/userfiles/file/90028596703.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a80ec09c12c---nunamixifag.pdf
- http://lbhs1965.com/clients/6/6b/6bdd8f708684a1f547efbf97e1630fe5/File/kepon.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5f4308d06---81720861411.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_off0001767d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1767D | 16792 bytes |
font_01_sfnt_off00018e8f.bin9f1d2b30f23e945c7121206221466fee52925f8e5577ac3477e2524f094b1889 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18E8F | 18000 bytes |
font_02_sfnt_off0001bce4.bin1eb063ae2c73ebfb4d4b24a2f1d64a8a6d829ee9b8338b6b31b1bf66fca8b185 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BCE4 | 11128 bytes |
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