MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm designed to redirect users to malicious content. The presence of these links and the overall structure strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9785
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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=years+to+get+a+phd
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1afc49163e---61898393297.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609c19acac544---41594134285.pdf
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab7f26041b2---14226481450.pdf
- https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/c885361ffef0540eea6c43175f2b21da/xezipisefisebowaj.pdf
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9274cf2edc---jejuguxidelal.pdf
- http://brilliantsolarpaneling.com/userfiles/file/nuwafi.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/kll1q6er9hccjqlb8sbhtufg7f/wolipagebu.pdf
- http://cherryontop.pl/upload/fotki/file/menikuf.pdf
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/7f41923934e349fec8b324ef347293c0/24199436430.pdf
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607188531a858---42169488169.pdf
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be5123d8d9d---buxareturinositowaref.pdf
- http://wadirumshootingstars.com/userfiles/file///51121474393.pdf
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e0ce8b13a9---23474334720.pdf
- https://nslogisticservice.com/userfiles/files/41916578814.pdf
- http://adveotec.com/img/file/302972043.pdf
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/42057fdfa23773a0609dee4b3dc0bdd9/japevuxuwotezenapi.pdf
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0002470f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2470F | 16792 bytes |
font_01_sfnt_off00025f1c.bin0e8225d85bea736718474b0f78a24b7150132fc8cdc464b6a8c44b6e9972ba3a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x25F1C | 2340 bytes |
font_02_sfnt_off0002694a.bin2c535e6c8bcfedc274690989d273c394f26dae49fca2d2b5825d19f55b3568b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2694A | 33452 bytes |
font_03_sfnt_off0002bbb1.bina82b0e560ae7a6fa0d576074a22bb709d8a6311b7075d3f21fe7387ad85a762a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2BBB1 | 17488 bytes |
font_04_sfnt_off0002d5e8.bine7119e40044a4e432dfa265da639229ccbdae5a030f7d2c1df1a06242e00c3f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2D5E8 | 10412 bytes |
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