MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious or phishing content. The presence of these links and the overall detection indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://chcial.ru/uplcv?utm_term=shake+it+up+cast+names
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092ea0ddb16b---lemifotum.pdf
- http://sola-brothers.com/userfiles/file/32778881787.pdf
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b8c96a32eb7---2850077599.pdf
- https://2acontractor.it/images/file/14037919898.pdf
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/d313f16322f0c14c3cf4e35baf61a0e9/vumemumusuxazufafo.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e12c0f99a7a---322308563.pdf
- http://www.cenlajobinator.com/siteuploads/editorimg/file/90538039360.pdf
- http://spc1991.com/ckfinder/userfiles/files/4049464855.pdf
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1608c44ac74c48---zukenaw.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee159115b3---vovubivakav.pdf
- http://rivieahk.com/clients/5/51/51325344bd1517f257d6959d5350918e/File/likesisagipejanubomoki.pdf
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/604e2330faebc4177cde74545258ff9a/xitelufimobewuxor.pdf
- http://jualumnitoronto.com/editor/uploadfiles/78021818489.pdf
- http://urjabatteries.in/userfiles/file/30149407007.pdf
- https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/d09ec3dbf497fb743af2afb9a66c6a57/divajure.pdf
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/d2badf4b76a63236953819474f4d6d9c/88851160891.pdf
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b986cf9eb3d---mufifub.pdf
- http://crabandclaw.com/uploads/files/nosemisojo.pdf
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f05cf55718---24594806370.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3c0114b6d---19903096275.pdf
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16096972d9d3c3---dadusukoraxexumafek.pdf
- https://www.moxiclear.com.au/application/third_party/ckfinder/userfiles/files/35757561403.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa4577b3f6---xififefumono.pdf
- http://0851gay.org/userfiles/202107file/2021070208354770554.pdf
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce4da0dd27d---nebazadogu.pdf
- https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/zenemisebotexuvu.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_off0000eb09.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB09 | 16792 bytes |
font_01_sfnt_off0001031b.bin55c795cd92d478c706f6ae00669b6c074f9840992de170fa23f1eef14e2bc1b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1031B | 17076 bytes |
font_02_sfnt_off00012f61.bin228bd4be0bd1bfbef2c5081a04fa1cfb7d7b04194207bac0eb8179d71c2ecdda |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F61 | 10640 bytes |
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