MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or malware distribution attempt. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites, likely serving as a distribution point for malicious content. The document body is heavily obfuscated and unreadable, providing no direct clues to its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9932
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://irlanc.ru/uplcv?utm_term=sherlock+holmes+graphic+novel+pdf+download PDF link annotation
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac570903f02---49445848144.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609211ff74888---jomenotupizimekibazagufo.pdfIn PDF document text
- http://cascinamana.it/userfiles/file/28575101254.pdfIn PDF document text
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/uhu9gqf34jjb9jlaqrh2v3nfcu/16121188146.pdfIn PDF document text
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160789244e5cf3---zodomofawotafuwujakupo.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1608b514ebfef1---nagewonedigerox.pdfIn PDF document text
- https://www.nrlandscapes.co.uk/wp-content/plugins/super-forms/uploads/php/files/696ea53befcdfe5b20faa36ffbc200cd/webonakatoresamudozeti.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab5bbc5af0---woganodojekuzufuze.pdfIn PDF document text
- http://xn--vb0b83rba554gca.kr/page_data/file/20210522093511.pdfIn PDF document text
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/3giku3nkhmd11u47tn46csu928/54249482096.pdfIn PDF document text
- https://deitratech.com/userfiles/file/zukepajajef.pdfIn PDF document text
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071976a4d23d---76600887351.pdfIn PDF document text
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab5fcc30437---sebaru.pdfIn PDF document text
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606c74b5cfc36---zadinajenevuvawupaxepulo.pdfIn PDF document text
- https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/44df8368b1f276a0d5f0514bc63b7cd5/sazimaxosepomigobosotezo.pdfIn PDF document text
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/7occu0rsbl5dshgrssmlhnqe7q/74340661386.pdfIn PDF document text
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/1de5949be2653de2e5736386b15d6117/85976865843.pdfIn PDF document text
- http://amirafouad.com/uploaded_files/file/widaterimasunasigopavoni.pdfIn PDF document text
- http://aklond.com/UploadFilesfile///2021050411113286.pdfIn PDF document text
- http://asupuro.com/user_data/image//file/fofinozuzoke.pdfIn PDF document text
- http://burchiellati.com/file_fck/file/33547370009.pdfIn PDF document text
- https://trimix.bg/UserFiles/File/lomezifa.pdfIn PDF document text
- https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/ofi14mmiv46fpfasrhvl552gjo/fomokivo.pdfIn PDF document text
- http://riskhedgetech.com/uploaded/file/17305060060b9d9843668a.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd49ccf183---69137308022.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c1deb6287a8---saxuve.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_off0000fd73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD73 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011585.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11585 | 17044 bytes |
SHA-256: 99594f7e3f7ccb335f4027c46f3f1ec67a9fe05a28d0c0f10277bcca84670ea1 |
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font_02_sfnt_off000141d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141D3 | 11288 bytes |
SHA-256: 3c795bc91b75db24984c0181b4a6dac3db56c23176d4e9e6fca9ebc5a05b4b1f |
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