MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous URLs, many of which point to compromised WordPress upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery via the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144a6998854d---80316394951.pdf
- http://gimnazjum-krasiczyn.pl/img/userfiles/file/dutozumun.pdf
- https://onecre.com/images/content/files/vifovesifusosos.pdf
- http://perfectionistpaintingnj.com/ckfinder/userfiles/files/83540635009.pdf
- http://everbeenmagnet.com/js/upfiles/files/gabikudosojixizovaz.pdf
- http://mtsp.by/userfiles/files/mevamuzifapiminug.pdf
- https://artofsurfing.com/preview/ckfinder/userfiles/files/lewagabekivigilof.pdf
- http://scuolascifondocortinadolomiti.it/userfiles/files/41529763645.pdf
- http://kcde.kr/userfiles/file/vifedezokam.pdf
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/499583f084a031600d739f22371d2d2b/74110079458.pdf
- http://hainfelderteich.at/kusilok.pdf
- http://chengzechem.com/upload/files/butaniroke.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141638427c9c---gafupume.pdf
- https://dynasty888.com/image/files/20210912_092927.pdf
- http://kiavysocina.cz/UserFiles/File/53664127827.pdf
- https://fotoprint.lv/downloads/file/64198041920.pdf
- http://heatexchangersolution.com/upload_fck/file/2021-9-18/20210918061441245808.pdf
- http://fvv-hohenfelde.de/sites/default/files/files/kuvilevur.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/b7b67b0a797ed1472075c198b8ae60e2/mazotifuwusikixofen.pdf
- http://jumpstart.mobi/ckfinder/userfiles/files/xumumexebiwo.pdf
- http://texinpack.com/uploadfile/file///2021090516233219.pdf
- http://soncongnghiepjotun.com/media/ftp/file/mizugazanezetok.pdf
- http://underbutter.cz/download/foto/zijogilimiw.pdf
- http://kag.fr/userfiles/file/xekosodimararegulofamava.pdf
- http://daithanhnam.com/upload/files/53611219777.pdf
- http://mudrberanova.cz/userfiles/file/87778824897.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=mod+hill+climb+2
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c34e.binc5734ff3ca8884bfc9282cb516b708bfcb4b17da8a7f4afbbd2dac3a39f8b249 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC34E | 10124 bytes |
font_01_sfnt_off0000d9cd.bincb3881085ee01a9c3346ddc14fcb83ee83f4190b6e31f345d75ac8aa0661e838 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9CD | 17120 bytes |
font_02_sfnt_off00010542.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10542 | 16792 bytes |
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