MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan delivery mechanism. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting, likely to lure users into downloading further malicious content or submitting sensitive information. The `utm_term` parameter in one URL suggests a potential phishing lure related to Excel security.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://ketchas.ru/uplcv?utm_term=protect+worksheet+in+excel+2013 PDF link annotation
- http://kanalizace-ul.cz/userfiles/file/60234876616.pdfIn PDF document text
- http://kuzfarm.ru/images/file/xubofegodedugi.pdfIn PDF document text
- http://technology-mp.it/userfiles/files/40547319229.pdfIn PDF document text
- http://sosnovgeo.ru/userfiles/file/79757280345.pdfIn PDF document text
- https://groupburuemas1.com/contents//files/45687972050.pdfIn PDF document text
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/vj1i5hgfq33ebmeu4tf1rj9upi/nimigexubiwodek.pdfIn PDF document text
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/6b987561788742b35baabc9299f710fe/28331252688.pdfIn PDF document text
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609a19fe5dfc1---98786359694.pdfIn PDF document text
- http://esistore.lu/userfiles/file/duxozobijafaz.pdfIn PDF document text
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/f841d384951076b1a2bdd1cfb0dea4f3/19714748656.pdfIn PDF document text
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/d5d25344b94a65e1c1f3b9f36c6d2ae8/rofexusubabafuruni.pdfIn PDF document text
- http://agriturismocorteerbatici.it/userfiles/files/gujogibuxijupikewek.pdfIn PDF document text
- http://villabrown.it/userfiles/files/90668285555.pdfIn PDF document text
- https://boyanbolyarski.com/userfiles/file/daxal.pdfIn PDF document text
- https://northcoteplaza.com/userfiles/file/pedibezewefite.pdfIn PDF document text
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6ad2a295ad---78814171941.pdfIn PDF document text
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc31ad15c08---49784532678.pdfIn PDF document text
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/4a4cb61124f94f32c98a02f14057a8bd/fotolewape.pdfIn PDF document text
- http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/14439509440.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/480fd77c744b0a5820e9c6440aba10aa/17185221859.pdfIn PDF document text
- http://fly.no1-yes.com/userfiles/file/fafan.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160accb4b2fd76---96146256181.pdfIn PDF document text
- http://agapetown.net/ckfinder/userfiles/files/nijigabuvorid.pdfIn PDF document text
- 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_off0000de5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE5B | 17256 bytes |
SHA-256: d5542b5fd3aabcd6acdcb855936c70b30f21a3c9f05222842fc254d9f32773a2 |
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font_01_sfnt_off00010b28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B28 | 10912 bytes |
SHA-256: 3772612b0bb8216fa106a04ef69001cc9126e5c23acb4b6a955b0acfcad5a465 |
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font_02_sfnt_off00012492.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12492 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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