MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link farm pointing to numerous compromised WordPress sites, many of which host further PDF files. This structure is indicative of a phishing or malware distribution campaign. The ClamAV detection and ML classifier further support the malicious nature of this document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16076f045b377b---zirevexuleresadotuz.pdf In PDF document text
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160857a2154e9a---85071369281.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc47493387---towilemobigikilegugize.pdfIn PDF document text
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/nouiq4i1t2be8epnnfavm9k1t2/kuvinezatukodi.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b660ebcc05b---butin.pdfIn PDF document text
- http://princeworldwide.com/multimedia/userfiles/file/44969849995.pdfIn PDF document text
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607622ef2f9c3---rujugawoduxipuwifijanag.pdfIn PDF document text
- http://trustarshida.co/cache/fck_files/file/7026886740.pdfIn PDF document text
- https://arch.ua/ckfinder/userfiles/files/kokutezewawoxawawuvu.pdfIn PDF document text
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/12eb7084efc4c5460beb5129c9cac57c/5821168437.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f153c3f256---19160204741.pdfIn PDF document text
- http://szao-spb.ru/images/news/file/13712978705.pdfIn PDF document text
- http://vtvxm.vn/userfiles/file/79923191620.pdfIn PDF document text
- http://damoorefamilyreunion.com/clients/7/71/71c8bb141a0941b69292984b9770a174/File/20418672461.pdfIn PDF document text
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7fb3dc944b---xofezorowagufageke.pdfIn PDF document text
- https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/09958edae5da545a627deefd2036b7f6/17056556028.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16071d87702932---dajokufapupufow.pdfIn PDF document text
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/0b703635fa3077639130b7476dfa586d/jelokolejeketobasagamexad.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b85edb53c9---nesusepetudupemisejekik.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/ebc3c5221e91a9141e18c4b9e3362994/noruwegaxedewi.pdfIn PDF document text
- https://motoquadro.de/userfiles/file/61750938564.pdfIn PDF document text
- http://kraski-chernila.ru/resources/file/81001786680.pdfIn PDF document text
- http://ccswcd.com/userfiles/file/vigerimag.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/7742570a284f3988fc936db7243c9b95/talomudefezanoli.pdfIn PDF document text
- http://humanitool.ru/userfiles/file/95308164336.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16086bf9b78bcf---30502001345.pdfIn PDF document text
- https://careersourcechipola.com/files/public/xexened.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=an+inflamed+pimple+containing+pus+is+aPDF 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_off0000ecbe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECBE | 17700 bytes |
SHA-256: 7e01d68ff0340c4765f5d1ce71dc54e14e1796c9e4c625b5d2df9316c9b8e619 |
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font_01_sfnt_off00011aaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AAA | 10944 bytes |
SHA-256: 4d32ac8a3c592298136ecbbc5bac98cb26624e3ca5942228b3a3d74b00509fa8 |
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font_02_sfnt_off000133d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133D2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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