MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The document contains a link farm pointing to compromised WordPress upload directories, suggesting an attempt to distribute further malicious content or phish users. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a pattern of using disposable hosting for these lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/6d9d6284d9e2ae63b69bde758380a098/rujasekoma.pdf In PDF document text
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/c5eab38400df7621f6065845ae966b46/xetinadigelutemixeka.pdfIn PDF document text
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/66b487872bae36d3f8dc27c49c884424/12343471390.pdfIn PDF document text
- http://capmar.eu/userfiles/file/1901086743.pdfIn PDF document text
- http://opakowania-loga.pl/zdjecia/fotki/file/wutipanuwitosi.pdfIn PDF document text
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608290a410318---55474838092.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/798a5dc7c6cb98bbe727eeb9680655f4/1586529233.pdfIn PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160755a2d32138---32346610234.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/34eee58af13d6f5b248d0db6628eb79c/wopupewevabij.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160729bce17081---32697639385.pdfIn PDF document text
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e2c5b62a9---50240008274.pdfIn PDF document text
- https://actor-conseil.com/files/file/77861174721.pdfIn PDF document text
- http://transinfosoft.com/userfiles/file/27984803569.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160781b8e29819---rojobodug.pdfIn PDF document text
- https://uleiuri.ro/userfiles/file/nuzunovuxoserepija.pdfIn PDF document text
- http://asokmontridental.com/userfiles/file/juxobevuwimoruxiwizux.pdfIn PDF document text
- http://angarakshaksecurity.com/userfiles/file/zugigujufosesu.pdfIn PDF document text
- http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/uqm104uln3d9b09u5h589rk1i0u3nea3/fanaviboriwefe.pdfIn PDF document text
- https://www.sudburyhighspeedinternet.ca/wp-content/plugins/super-forms/uploads/php/files/292fbea45473fc546e15416539112b6c/94170254619.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160796be773449---82628422161.pdfIn PDF document text
- https://alternativecarrepair.com/userfiles/file/wazupewijafozobef.pdfIn PDF document text
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/79859328494.pdfIn PDF document text
- http://www.aqsclimited.com/EditorImages/file/2554825146.pdfIn PDF document text
- https://akrmedia.no/ckfinder/userfiles/files/wazadasowe.pdfIn PDF document text
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609511f03d0a9---nixigojaza.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=one+thousand+written+on+checkPDF link annotation
- 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_off0001123c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1123C | 18368 bytes |
SHA-256: 2ff9b0a5e3a814b90291fe80e572718ce822f01b7cb40368f796b3c507ec5cbb |
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font_01_sfnt_off000142d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142D4 | 10724 bytes |
SHA-256: 21a2557a91adbddc110916ccc34ad273a4098ff8e8af9ac2537280599c7e018e |
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font_02_sfnt_off00015b89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15B89 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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