MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are identified as compromised CMS uploads or part of a link farm on disposable hosting. ClamAV and an ML classifier flagged this PDF as malicious, specifically as a phishing trojan. The embedded URLs suggest a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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 https://printsolutions.printsolutions.bg/uploads/wysiwyg/files/20984963433.pdf In PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/u7sho62b356bpduc5dv5ctip6a/48634674747.pdfIn PDF document text
- https://groupekheidri.com/ckfinder/userfiles/files/burefabanifizimi.pdfIn PDF document text
- https://millinerandassoc.com/files/file/zamununubejefakipodejid.pdfIn PDF document text
- http://warmistore.com/userfiles/file/vefufu.pdfIn PDF document text
- http://jubileejec.com/userfiles/files/32345606674.pdfIn PDF document text
- http://onyx-innovations.com/assets/ckfinder/userfiles/files/97643736074.pdfIn PDF document text
- http://trumoi-khutrung.com/upload/files/32367995861.pdfIn PDF document text
- http://xpeedon.net/userfiles/file/20210913055019.pdfIn PDF document text
- https://www.delaneyllc.com/ckfinder/userfiles/files/10651104802.pdfIn PDF document text
- http://espacioschillout.es/images/admin/file/pafufujedorewatepanum.pdfIn PDF document text
- http://imhyuk.com/imhyukeditor/userfile/file/gatovaxumumirelu.pdfIn PDF document text
- http://goang-hann.com/uploads/files/202109031826585817.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/4e7dcc47cbf468585427ba042c8d4966/pasapagefasoripajenu.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/46nlvg6amo7pkfbmps58c6lji4/61426212644.pdfIn PDF document text
- https://catequesisnavarra.org/guiarte_userfiles/files/38247258677.pdfIn PDF document text
- http://www.logistiekverbeteren.nl/ckfinder/userfiles/files/sokuzekawuperiked.pdfIn PDF document text
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/e8d8de746682cec0c3ba52c221b90fbe/39874031521.pdfIn PDF document text
- http://myxroad.net/upload/userfiles/file///wewuk.pdfIn PDF document text
- http://orel-trinity.ru/sites/default/files/file/sufodofotagax.pdfIn PDF document text
- http://dastone.ru/userfiles/file/toxolegazewijow.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=old+version+imo+apkPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b138.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB138 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c94f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC94F | 10640 bytes |
SHA-256: c3ccc03b37554e59bcb2f54c45669312331a6baf15ad789cd4db53581c037dc8 |
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font_02_sfnt_off0000e192.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE192 | 16540 bytes |
SHA-256: c91af44ba53ecac15b112e236f37c9266b9d5c55fc3efa9a17f00b9091c2fd05 |
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