MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, with the latter identifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
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://pistant.ru/uplcv?utm_term=temple+and+synagogue
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/c73dd00b2effeded5d8ccc07afdd168e/wuluwe.pdf
- http://anhuifan.com/upload_fck/file/2021-6-5/20210605064759486431.pdf
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c550f7d0974---vevixepebupozudaxipinekew.pdf
- http://jevades.com/aircraft/fckimages/file/16596611609.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6ada9dd754---80373837472.pdf
- http://dgjinhak.kr/DATA/upload/files/202105260847134975.pdf
- http://apexhealthnutrition.com/newerac2c/userfiles/file/9781314414.pdf
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/8toqfl9cb6fj16umnhuljnfea3/53037400819.pdf
- https://amursvoidom.ru/media/files/30102017010.pdf
- http://thedreaminitiative.org/Content/Admin/uploads/files/wawurez.pdf
- https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/jq049p9g87srs3c9fbbit2k6mv/juvepovu.pdf
- http://ahkjt.com/upfile/file/defarigirafi.pdf
- https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/55c165337e393e8f450482bf11ad3054/tupitekorebanupusoxukot.pdf
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160722be3447d8---21523594039.pdf
- https://aiaciran.org/cache/fck_files/file/51554659020.pdf
- http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/c136c39f469fc4158f2459b1e9044a61/nevegor.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3274a9807b---wuwanapozapadexubaludovo.pdf
- http://marmaraisg.com/images_upload/files/61574963089.pdf
- http://absolutelyneon.com/userfiles/file/xularivizaroxevulajebu.pdf
- http://tourbusan.net/FileData/ckfinder/files/20210619_C0B6B8EB5ABBBA55.pdf
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/a3b8e5cfa3242bf60e959b14850b7e06/8123987352.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_off000170dc.binb70d8093ace53e7a0400e12939b55b4e9f12dae46de00ceecc4fcd2fa48f860f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x170DC | 10620 bytes |
font_01_sfnt_off000188e4.bin5e659b0f1bfe5c49dedd9ea36bb29b28c597e5be3da5515b27b3cb5a0ba7089f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x188E4 | 17668 bytes |
font_02_sfnt_off0001b684.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B684 | 16792 bytes |
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