MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous links pointing to compromised WordPress sites and other domains, suggesting it's part of a link farm designed to redirect users to malicious content. The presence of external URIs and link farms indicates an attempt to direct users to potentially harmful external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://crysiq.ru/uplcv?utm_term=sleuth+play+script+pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/d4a688e8bda17595f1fc2a145d7f4177/16004269552.pdf
- http://bentleyplemtech.ru/userfiles/file/39740142394.pdf
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/24e4aacf9f0b614b6dbe4fb868655922/74842982991.pdf
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f87587443ac---57253291757.pdf
- https://hogies.com/includes/template/uploads/file/87702322990.pdf
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/q54b3runjifbp78je7q0pms6k3/murokokazirale.pdf
- http://eis-pieschel.de/UserFiles/File/47588747318.pdf
- http://mariopresto.pl/userfiles/file/14191353996.pdf
- http://aarogyamedico.com/userfiles/file/54257638090.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610c0747f295b---winibabubo.pdf
- http://kancelaria-perfect.pl/app/webroot/media/files/totagiruzutadavopa.pdf
- http://yer-krasnodar.ru/ckfinder/userfiles/files/93798861218.pdf
- https://srinivasagroup.com/ci/userfiles/files/27229010341.pdf
- https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/848eaf4cc528f86c4477846aac14369d/vepodarobifujexa.pdf
- https://coonvalleycc.com/userfiles/file/8557316411.pdf
- http://rocb-ap.org/file_media/file_image/file/juponiresex.pdf
- http://anhuicrew.com/upload_fck/file/2021-5-7/20210507122323152997.pdf
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cc3fc620ac---16859090180.pdf
- http://maivietnamesecotati.com/uploads/files/83050913515.pdf
- https://caraudioshop.ro/mm/file/83738050234.pdf
- https://paperland.bg/uploads/file/24808916299.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_off0000cde5.bin5755269eaeff4b1bcaeca8356bb19808789e94a7e0609be319acb32247ab5cb9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDE5 | 17092 bytes |
font_01_sfnt_off0000fa1f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA1F | 16792 bytes |
font_02_sfnt_off00011236.bin596cb133988ffa5809ddc52d72d105f43a1f68038929f500e5646d747f44cd4e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11236 | 10780 bytes |
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