MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains a link farm with numerous URLs pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of external links indicates an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://krisoc.ru/uplcv?utm_term=red+brick+locations+lego+harry+potter PDF link annotation
- https://tractorpulling-emmeloord.nl/upload/file/gisab.pdfIn PDF document text
- https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/frm83kt4573tfb34ic9v7jg8j4/6572360094.pdfIn PDF document text
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d4513e06146---dufedonuk.pdfIn PDF document text
- https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/3d68454eab71b5d1453e312ccd49fbec/17227175959.pdfIn PDF document text
- https://centrosteadycam.it/wp-content/plugins/super-forms/uploads/php/files/f21aa5c98e03dcd8c5032bc0f88289ac/nobazemomosuzanokenaz.pdfIn PDF document text
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/e36jri3gjj6qcnm1e2tlj54bc3/43180239136.pdfIn PDF document text
- http://vitanova-cattery.com/upload/file/39790816081.pdfIn PDF document text
- http://adria-ex.com/images/blog//file/wosuzawifozuna.pdfIn PDF document text
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a7539595ce1---60484992820.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/c2553c421956c6ce7798e7d74c7a67aa/25617981521.pdfIn PDF document text
- http://say-international.eu/userfiles/file/wumutulemolapolivopuvola.pdfIn PDF document text
- https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/315f605c434754b5a5b76a9210a8b865/diziseveguviwofepaled.pdfIn PDF document text
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/eoh3m08jrqd94imn0mq4donkdp/radiwabesitakowom.pdfIn PDF document text
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b19dd7ead87---verelenemerolegomunirat.pdfIn PDF document text
- http://studioriboldi.eu/userfiles/files/benugugegebo.pdfIn PDF document text
- http://waltwhitmanclassof1965.com/clients/c/cc/ccbfa8a87e297cd67510599b8aebcb74/File/54760530033.pdfIn PDF document text
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d401e4b9d6---60594135969.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a4908a1fd87---fujapuzezoxunox.pdfIn PDF document text
- https://elmaga.lt/components/com_mijoshop/opencart/image/data/files/27590124151.pdfIn PDF document text
- http://chickendaylacrescenta.com/uploads/files/xikinidig.pdfIn PDF document text
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/2hmid8r423gca10c801l9mifi4/xavefotoxutam.pdfIn PDF document text
- https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/842634c072854d894c94e19cdd2c2107/15475322092.pdfIn PDF document text
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9c1874a76---26714335189.pdfIn PDF document text
- http://mp-hd.de/data/aktualnosci_imgs/file/52817743793.pdfIn PDF document text
- http://ecompletecontact.com/ckfinder/userfiles/files/zuxavekixulenij.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_off0000ea6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA6E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010285.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10285 | 11184 bytes |
SHA-256: 03c2736115d5c113947068fec40c67bd4a7f92c96bc047742b1282064f4fbff1 |
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font_02_sfnt_off00011c33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C33 | 16404 bytes |
SHA-256: bc5cf440ae40f7d795dc923c9ec585d1f85832d1c96836b6dea0c31169d3afe3 |
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