MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm. These links likely lead to phishing pages or further malware downloads, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://philabc.ru/uplcv?utm_term=advantages+and+disadvantages+of+information+and+communication+technology
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16088573259b3f---65170371835.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/48338804edaa10d7a1e84f8daba52283/pokiloj.pdf
- http://fqcycpa.com/jingkelun/userfiles/files/20210629064619.pdf
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b46d5a7607c---34889764815.pdf
- http://azizolace.cz/images/file/lifomipefaruvabisegore.pdf
- http://chongthamnguoc.vn/img/files/3254824181.pdf
- http://www.elitagida.com.tr/wp-content/plugins/super-forms/uploads/php/files/f80ocp7nl00fbavnl4mhjj32a4/bozuxatusetuwu.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f5b7e8a8c4---napitiduzipapojoxew.pdf
- http://kasintorn.com/images/upload/files/numal.pdf
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/ac0246641c218036449f814865dc3a24/dumojazadaropokogu.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160717ceeae913---pixuvejusivoveb.pdf
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6479704789---sigisugigijima.pdf
- http://mmckno2010.zkosuchdol.info/files/34686048790.pdf
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/qaga8uthsjq5n8r76efa1ht8r4/43804273589.pdf
- https://zoorichi.com/temp/fckeditor/file/9478836233.pdf
- http://grawerlik.pl/userfiles/file/27014515127.pdf
- http://kag.fr/userfiles/file/66716033775.pdf
- https://elbag.net/wp-content/plugins/super-forms/uploads/php/files/1efe6b91c24e3d926b84304ac7ec69cd/vekenenubomedefis.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/ndmcs7cimkm5bas0qtbgcc6sm4/losesusokoro.pdf
- http://fouladsazanco.com/Upload/file/pevira.pdf
- http://euro-ex.net/images/blog//file/kukedukur.pdf
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/5bkoh56u70neat0ggvrt5a6510/53816726310.pdf
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609680ab4ba8a---digovipaxufasefamas.pdf
- https://leganordavigliana.it/uploads/file/94607043357.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_off0000d605.bin986aa7af0ef102e6a6e5de4cda190d45748aa30b51f21884bd1d6ebcc67d6105 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD605 | 11184 bytes |
font_01_sfnt_off0000efe1.bin2e66b946221693c331c2f0c9f764579aa04f45b036b4784704b418f4e1dce2ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFE1 | 15840 bytes |
font_02_sfnt_off0001186f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1186F | 16792 bytes |
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