MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs that point to compromised WordPress sites, likely serving as a distribution point for phishing or malware. The presence of external URIs and link farms suggests an attempt to redirect users 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 https://krisoc.ru/uplcv?utm_term=apple+baked+oatmeal+for+one
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160705db19dbba---nevozip.pdf
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/ngcm65bnput317d5hu0lilau5q/jorijimozepagemerol.pdf
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/effb10debf57dbeca8cff05cb257ec55/62961348830.pdf
- http://stewartreunion2020.com/clients/2/2a/2a0d9dcdd57715375c9f4393c24df0f2/File/mavowufot.pdf
- http://rafaelokazakov.com/file/dokexum.pdf
- http://mu-rrrc.com/userfiles/file/88238120847.pdf
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5a9cdedadb---balajorir.pdf
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/211e48aa2adfc58bd21f215d058917da/56492605416.pdf
- http://jamessham.com/admin/usercontent/file/10967141669.pdf
- http://jeyadhurgatemple.com/userfiles/file/19401226666.pdf
- http://adabaskimerkezi.com/upload/file/lomivovitulezonuk.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5ed1d569c94e984492e8752a10a5625a/35625770138.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c28816c85f2---67414422468.pdf
- http://se-ty.ru/uploads/userfiles/file/27288543109.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a889e125d45---fujavakigazozezavat.pdf
- https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/e4f37f1e3e491c8768e7db84767e6410/ruzelage.pdf
- http://bjhtdszdh.com/v15/Upload/file/2021628918423049.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160984bff078bf---ledaxixugomazavetir.pdf
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/lpo6ejo9iu3ruvd110m4bcoejq/24923555104.pdf
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/09a496f80d4478a214ded94e57716d44/xupawam.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9a2020b944---7226318890.pdf
- http://domplus.su/userfiles/files/zosugar.pdf
- https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/1h8q28i4in7ti0ficvn4g7ba6n/35492629426.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16076689dcc101---burebivubivuta.pdf
- https://digireg.pl/upload/40992563728.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f77c.bin01a1eb2d5d0cebb3b3162462ad663f12c324cf0c75969b2c55053a2802cc5a29 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF77C | 10612 bytes |
font_01_sfnt_off00010f89.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F89 | 16792 bytes |
font_02_sfnt_off0001279b.bin8ead1bdf431711a317d14b1d0615eea11f750e98c4ec2c931ab51b449929f6c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1279B | 18444 bytes |
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