MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains numerous links pointing to compromised WordPress sites, suggesting a phishing or redirection scheme. No scripts were extracted, but the presence of multiple external URIs and link farms indicates an attempt to direct the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/160774df44f3ba---vuzulobat.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/reid701vjlkdnr43bt9pculpv1/68486454097.pdf
- http://akinmedikal.com/uploads/file/90773817053.pdf
- http://ztkammer.at/uploads/file/kiwakurelerub.pdf
- https://newtech-utm.pl/userfiles/file/kipenaz.pdf
- https://samngaimarble.com/html_upload/file/fotuzupowuludubipaf.pdf
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce1c4a45f3---duviwokululi.pdf
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/16088f7d63dd4e---fadalonavanove.pdf
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/21de9d9afa972846ecfc41b401434a34/kofazulap.pdf
- http://residenceraffaellotorino.com/userfiles/files/pofazudasovutuxa.pdf
- http://saxons99.com/clients/5/5f/5faa49e4155ddd0d4faf97b0d7aa3dde/File/73400301134.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160e0f0bba200b---38009546601.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d0ab68e734---jupazonasavex.pdf
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/a3cd0a32ba7d152583fb1805cf77961f/jipijatakoguzitaku.pdf
- https://centrobrands.com/wp-content/plugins/super-forms/uploads/php/files/6e33d5956cbc6f15e32444f41056d2c2/vebumunu.pdf
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/cdca6e841f1edaec15fc1b09ff9a2ad4/mitinuvebelilamexaz.pdf
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/hj8u3sg753hv69q82516do2akd/81483534420.pdf
- https://adsbudget.net/userfiles/file/rigitokar.pdf
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/60b16eb205537cbe005951e1197a3669/25769679885.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/5ja7qknrm2m2r12la3d5f4sbv6/maxefiporugejaxawidevoxa.pdf
- http://arcdesantmarti.com/biocop/Images/images-editor/file/57362443945.pdf
- http://adaviestransportltd.com/userfiles/file/sudanodiwilikugijofu.pdf
- http://changju-hotel.com/CKEdit/upload/files/sikarubafemepajefuwin.pdf
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/91746853233b9a9f9e1363279a27753a/pogede.pdf
- https://nidi.mk/ckfinder/userfiles/files/12595325944.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=open+letters+monthly
- 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_off00010320.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10320 | 16792 bytes |
font_01_sfnt_off00011b37.bin11d0a5f836fadb672a1d19bffad57d6330bcebd70f0382628e60061ba55cff3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B37 | 10404 bytes |
font_02_sfnt_off000132a0.bin6b0dd229cc5848889143e4a14a4213cca99567b4c73b59b7f61c11ad9dfef034 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132A0 | 18932 bytes |
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