MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a ML classifier and ClamAV detection. It functions as a link farm, containing numerous embedded URLs that point to compromised WordPress sites and other disposable hosting. These links likely serve as a distribution mechanism for phishing attempts or further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://chcial.ru/uplcv?utm_term=take+in+all
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/65c85449cf64ca92ae5a57d9787be634/57978106017.pdf
- https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/5em79nsm7793foe49b29eu3gv6/77609739665.pdf
- http://abwlanham.com/uploads/files/wenokivesezu.pdf
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/30aaeb187f4a6581085b78be234222b4/zunizeri.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160950980bb435.pdf
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/9j865fu7telsbcdhj4k4js5oc2/38867896032.pdf
- https://betentour.com/sites/default/files/file/36061515612.pdf
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ac074ef2060---xebas.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/88ccd7664982c2510ea345189ad9ce40/13272873272.pdf
- http://greatnice.club/updatefiles/file/34954647865.pdf
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1607100fde046a---vutepagugobezevapevezami.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc5c396ea96---76788688469.pdf
- https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/33b4995b363d8bbcd9b613526dc1d433/netejisu.pdf
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/5l8afenadi6jo0lts2vhr7rct4/xiwubaja.pdf
- http://presssimayeshahr.ir/pic/file/41088422436.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a61a8f55eec---49392723629.pdf
- https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/kawetutofefudu.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/mmbu9tiao3v3ciab1mfh651cnn/sumepefojure.pdf
- http://almar-bus.pl/userfiles/file/64742848648.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/i0sg8km4jktf7da8gro6qunqtp/69704665462.pdf
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/3gcol37u30gdesq56j0od9mi5d/81660537001.pdf
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ddfbc5666fa---refozozutovani.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_off0000c417.bin04d52ba7937ebe091ca1d996734916655e3e6273db53f9c55dbc5bc169b52bfa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC417 | 9668 bytes |
font_01_sfnt_off0000d926.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD926 | 16792 bytes |
font_02_sfnt_off0000f138.bine08672f0b0c9dabaa14170b4f0bdee9aed39f11acde4a8f4f9e623591c040a93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF138 | 15988 bytes |
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