MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. Static analysis revealed it functions as a link farm, with numerous embedded URLs pointing to compromised CMS upload directories. These links likely serve as a distribution mechanism for further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160abcaba3bc7c---torimufevanodimalav.pdf
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c5d9169f7a---zexok.pdf
- https://playerpress.com/ckfinder/userfiles/files/nadasupobutakarubisavulow.pdf
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adab4df2a18---58910806044.pdf
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd6c9b50b6a---8417114191.pdf
- http://quatanggiabao.com/images/uploads/files/govirinuwimavezovoralo.pdf
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/dgg8ldfdq2ad11a5pogttghmeu/60504939876.pdf
- http://gpmpoolandspa.com/ckfinder/userfiles/files/52514638449.pdf
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a536eddd8bd---pibuputamuvunamap.pdf
- https://tasivn.com/upload/ck/files/82028573050.pdf
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/c22eee238ed42f27cd5bb1c98336da78/86520707905.pdf
- https://skyzoan.com/cake/beta/userfiles/file/zatesurusifekurubokus.pdf
- http://tomaszskiba.com/userfiles/file/31976204658.pdf
- http://aksaaydinlatma.com/img/editor/image/file/baliweredawu.pdf
- https://nhatngudongkinh.com/upload/ckupload/files/8113404350.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/5a20c633c77700272094df6aeba76709/86868620654.pdf
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c864845a7a7---japanovigipojorakit.pdf
- http://www.clc-engineering.com/siteuploads/editorimg/file/99358583859.pdf
- http://cezanart.com/userfiles/file/gijasakisutu.pdf
- https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/29rrp3gs4judem5nn9bgocepr8/28709845931.pdf
- https://pisangmanis.com/contents/files/telatoma.pdf
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bd68c4c893e---69787778037.pdf
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/l34qojlo7jhtcbk8i7lpmka0o1/sinonevumegewaxijukav.pdf
- http://grandchainfamilyfoundation.org/clients/85333/File/87740895422.pdf
- http://assessmentinsight.com/ckfinder/userfiles/files/pewixu.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=2+team+parlay+odds
- 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_off0000d812.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD812 | 16792 bytes |
font_01_sfnt_off0000f024.bina534387e719682ee44eea6a6a47a87a5b7124c55846d7d4807daa1bed590335c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF024 | 17936 bytes |
font_02_sfnt_off00011f6c.bin581786dea7214b6c1c4d1bcd53e6ed2bc3dfe919c79b949a9d3bf7e6601950c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F6C | 10496 bytes |
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