MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and a large number of external links. Many of these links point to compromised WordPress sites or disposable hosting, indicating a likely phishing or spam campaign. The embedded JavaScript, while not fully analyzed due to obfuscation, is a common vector for malicious activity in PDFs. The ClamAV detection and ML classifier strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
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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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 https://drafthe.ru/uplcv?utm_term=separate+pdf+into+multiple+pages
- https://rybczewice.pl/userfiles/file/renuvo.pdf
- https://inwestorfinanse.pl/userfiles/file/nekebejonebivopusavakal.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160785710be940---lajedamesazoso.pdf
- http://metabolit-plus.ru/files/file/noduvof.pdf
- http://hoteldarim.ir/basefile/hoteldarimir/files/rifaletadalilelexubav.pdf
- http://billedbutikken.dk/articlefiles/file/tokebelili.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a1adf3035dd---wiwujujisaduwotakufeb.pdf
- http://musikpark-live.de/userfiles/file/tinufosejudilora.pdf
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/a63f644412a84eba4da90a5364dad5bf/48810408339.pdf
- http://musclecar-taps.com/js/upload/files/newudamagox.pdf
- http://archinfo.ru/uploads/file/230115466.pdf
- https://samarpanbharat.org/trila/userfiles/file/64857222843.pdf
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/f8d7c858e47dfabac1d6fddef6e2b520/turizesegi.pdf
- http://thuduchouse.vn/pics/file/tikibakupawoxikus.pdf
- https://tootooair.com/FileData/ckfinder/files/20210826_F8FA02F3F043AA02.pdf
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/3h2q8ip1vtlb8hsonk9nncjo8s/xibipanuxegusug.pdf
- https://wronba.pl/uploads/wysiwyg/file/65503326684.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf4f12a800---vumefufebeze.pdf
- http://netcentricnj.com/ckfinder/userfiles/files/62659344047.pdf
- http://www.christianhouseshare.com.au/ckfinder/userfiles/files/vavunevufajesa.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607998ff91eb3---gilejolegel.pdf
- http://renovfab-menuiserie.com/userfiles/file/33858195369.pdf
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/e2dc767cfd2da8a3a700f9a5924a27a7/83794149826.pdf
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/4mkqtoltkeo43hp7ftecrmtfvj/xojemavijab.pdf
- http://patanamachine.com/imgUpload/files/92612499185.pdf
- 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_off0000dfc6.bindff0a98111b86bab4f739a2243ab0f3be8706bdd9ca8a48ab15d3a1178b835c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFC6 | 17108 bytes |
font_01_sfnt_off00010ca2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CA2 | 16792 bytes |
font_02_sfnt_off000124b9.bincd0f6d2bd76655fa120c43076a3163c80a671253f23a0a46b7a671d5bc8050e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124B9 | 11016 bytes |
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