MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple external websites, many hosted on compromised WordPress installations. The presence of numerous URLs, including those with 'utm_term' parameters, suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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=why+still+here+just+to+suffer PDF link annotation
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c73d69693e0---xizirowoziw.pdfIn PDF document text
- http://terezmisszio.eu/files/file/96430496132.pdfIn PDF document text
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/b1749umtq7a71ul6okcdqeukk9/94845532640.pdfIn PDF document text
- http://seamcc.com/UserFiles/files/54089944372.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7f9005cef---2560654600.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/2caa55a77bd2c2db52b31dd90d517bf6/80834199495.pdfIn PDF document text
- http://recrute.fr/files/files/6092546674.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160c7b0ed4b8f8---74641474555.pdfIn PDF document text
- https://glycocalyx.nl/userfiles/image/file/47524250524.pdfIn PDF document text
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081006e08b09---33314061293.pdfIn PDF document text
- http://pospatrans.cz/UserFiles/File/bubenap.pdfIn PDF document text
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/dc28c1f43925bee1e79f619c5e1341bf/fipulaso.pdfIn PDF document text
- http://internationalnetworksolutions.net/files/vanenexatuzejodipuselukas.pdfIn PDF document text
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088d0f50b951---bijomagowomomo.pdfIn PDF document text
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160724d4eb2712---vadazefopomumevowu.pdfIn PDF document text
- http://glotecgh.com/upload/editor/file/79355466807.pdfIn PDF document text
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4e5e0b844f---xijixekuje.pdfIn PDF document text
- https://angkortaxiservice.com/userfiles/file/xaderugofiwawij.pdfIn PDF document text
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/60ik5qq10bkcgcinnt7kuqbp54/galagifufikutuminubotu.pdfIn PDF document text
- https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/fgtvjug5u84c29vncj85bc3pq3/15366388509.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/5uojhb30s3vst79os6ints1fr1/wazelogig.pdfIn PDF document text
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/neo9269qqssce34eq4nudcb8pl/51952560356.pdfIn PDF document text
- https://alutat.com/data/file/88748959809.pdfIn PDF document text
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a9807dcae9a---43210456744.pdfIn PDF document text
- http://southport1969.com/clients/861680/File/94981764792.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF55 | 10380 bytes |
SHA-256: 155f859fc9ff149589d7bf11b3a67e4e7685bb3add91b97e98a2d90f64cb2369 |
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font_01_sfnt_off000106ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106EE | 16456 bytes |
SHA-256: 7da111fb1dc3a8e8df98ee38341ccadb6673c6975be3f6b999be24752489a055 |
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font_02_sfnt_off00013184.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13184 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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