MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by a ML classifier and ClamAV, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress upload storage and other disposable hosting, suggesting a link farm designed to redirect users. The PDF's structure and embedded links indicate it's likely used in a phishing campaign, possibly as a lure to download further malicious content or steal credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa2556cab5f---44515763709.pdf
- https://t2sc.me/userfiles/65572915779.pdf
- http://davidhammerstein.org/userfiles/file/18422627979.pdf
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/ef77833ed33f42bdfba3dd2477d4345e/kiwusaf.pdf
- http://ankaser.com/userfiles/file/88494384358.pdf
- https://proektasis.gr/admin/spaw2/uploads/files/giluwuta.pdf
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099318d93b5c---xapomogemevuvikupufem.pdf
- http://buffagiuseppeinfissi.com/userfiles/files/95477435557.pdf
- https://nolimitscenter.be/peausitive/images/FCKeditor/file/36104020516.pdf
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/vipuv.pdf
- https://demircanticaret.com/userfiles/file/29975581865.pdf
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16089a3937a915---57779962236.pdf
- http://ufnk.fr/app/webroot/files/file/rudajesela.pdf
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/b0d1d3ef91a966a6b94bbabf2f69e82a/3762133584.pdf
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/51132210669.pdf
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/289bfb9bcf9c8c5cf543067297959d63/nixikixobidopubo.pdf
- http://skrabl.pl/www/rpbd/fck/file/mobozubamifozilaloxupe.pdf
- http://agataklimowska.pl/userfiles/file/jimodufu.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec9b5aacbe---mogivawunogexabukaxuxeme.pdf
- https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/9c525b2720071c3cb33c39cfd819d41e/3387447174.pdf
- https://tedvandergulik.nl/userimages/file/maxusewadidogunoroka.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/13j2ati7053dncd9ggej0jndul/jejim.pdf
- http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b4a34404f67---febiwegemidimibagaguseno.pdf
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609fa1757d575---60032678097.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=how+to+remove+permanent+retainer
- 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_off0000e9bf.bin658daa11b0a07e3505a9b3cb022a7d1969bc9e0d61467bac5db2c26d373253d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9BF | 17124 bytes |
font_01_sfnt_off00011651.bin34c59dd12a09581214850144ec3e10efcd11da8bf42d5dae229c48e167d116d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11651 | 10344 bytes |
font_02_sfnt_off00012da3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DA3 | 16792 bytes |
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