MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF containing a link farm pointing to multiple compromised WordPress sites. These sites host other PDFs, suggesting a multi-stage attack. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution via these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/ab23edea73e059484c72f6a00644ce2e/24689015763.pdf
- http://master-sign.ru/ckfinder/userfiles/files/wenukajamupawol.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c04bcba510b---50025307292.pdf
- https://deltagroup.bg/uploads/file/54334181492.pdf
- https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/vjevsi9jskhdvqkmsjdgrnkmlj/katewov.pdf
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/297beb7a20177f59c003c085101da0db/79492016606.pdf
- https://daaeportrett.no/upload/file/bupumijegadatexusisivemum.pdf
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/b4c055b1e920cf770e9a8b305ebcd3d5/75803624558.pdf
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/890e8483c3c0247d3713f3c061d84717/sugozarev.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16082563032583---25921341017.pdf
- https://ringid.vn/ckfinder/userfiles/files/83823075083.pdf
- http://schodylux.pl/userfiles/file/34891181861.pdf
- http://agriturismocorteerbatici.it/userfiles/files/82175240405.pdf
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/i1h4phsd68mpsh18g22d45j520/3410664340.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a9fae46e0fe---54098210035.pdf
- http://hccc252.ca/clients/e/e4/e484b38507f190a955b66748903449e1/File/57797895670.pdf
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/4e22829fdf632023c8eea89a9a7b18be/wasoxofozajolalejevinunet.pdf
- http://kapli74.ru/upload_picture/66725516953.pdf
- https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/vprni8kvuh37i20hommfpp3sh7/binobelonatowubopu.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/47b36e84aa16f7ff2abf800c8355662f/pomufukumutofe.pdf
- http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609773f6da477---vugerubogu.pdf
- http://syarmarka.ru/userfiles/files/91217451699.pdf
- https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/3172a73c7dfe8daccb67d1878f82b560/96046744735.pdf
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b2ca0c723---nemevomirexaz.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16092e63407524---matixidagadej.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=single+stranded+binding+proteins+dna+replication
- 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_off0000fc56.bin63c83139d3af6f0f05cb5e7ef291af639891bc2ac8ce06e626bf726df3b38ae9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC56 | 17228 bytes |
font_01_sfnt_off00012977.bin0653e7656cb3bd870fa1181fccdcbf58b72321369e3636343a6c5ab7e8faf755 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12977 | 10904 bytes |
font_02_sfnt_off00014256.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14256 | 16792 bytes |
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