MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest this PDF is malicious, likely serving as a phishing lure or a distribution point for further malware. No scripts were extracted, but the extensive use of compromised domains for hosting PDF files is a clear indicator of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://chcial.ru/uplcv?utm_term=multiple+effect+evaporator+problems+and+solutions
- https://tigercabinetry.com/wp-content/plugins/super-forms/uploads/php/files/5a1971558af72a53479d3396dccc5cdf/guxurute.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093f747d9cad---semudasaf.pdf
- http://jr-bang.com/uploadfiles/20210610215550.pdf
- http://mebco.ru/images/file/98159231018.pdf
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/1a7bc6016f9a0d48a94fe85df381306a/fasafotodunopere.pdf
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160989138f3f99---30722577399.pdf
- https://triosms.com/userfiles/file/xasadefu.pdf
- https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/3fe654ead83bbfd5b921723ff820142c/55215059700.pdf
- http://outspokenholland.com/userfiles/fckFile/20210531101334.pdf
- http://al-bandak.com/userfiles/file/31311936133.pdf
- http://pizzeria-millemiglia.de/app/webroot/img/editor/file/gagos.pdf
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9f628b552---fanuzaroxo.pdf
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/110739efeb861caec9c84f91d164ebc1/69412257073.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/8b587fc6209facc0caf4ee7ac23c608f/genopamizumin.pdf
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c87e3acc0f---bagopemizodamumalo.pdf
- http://chretkinia.pl/userfiles/file/dubufatevixujesop.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160aa805a240b2---33086956616.pdf
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609276e6d3c08---kinitijopub.pdf
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/19e6c45de01da56a68e49f820d2da27e/tomaxobiw.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/465f31948af781d6fb04af03fa0a50bf/45734652658.pdf
- http://kompletucetnictvi.cz/files/file/40224694628.pdf
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a07a0f09807---vesuvo.pdf
- http://kowel.com/ckfinder/userfiles/files/1624262673.pdf
- http://sooclose.eu/upload/File/33561710717.pdf
- https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/hhqt7pslf5mojvhp01e4iqd3h6/30434023580.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_off0000ed7a.bine5486fad94716a61bffdf1d1fe19ccf996cfd27d08bc817e7bfdd1ff85254bd4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED7A | 11080 bytes |
font_01_sfnt_off00010718.binfebe1144b2871c307d045f5e5ec9f03bc8c5b5183f6328c94f3bf3721918abf9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10718 | 16760 bytes |
font_02_sfnt_off000132aa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132AA | 16792 bytes |
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