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 contains numerous external URLs, many hosted on compromised or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics point towards a phishing or malware distribution scheme, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9888
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://queure.ru/uplcv?utm_term=formula+quimica+del+penta%C3%B3xido+de+diyodo PDF link annotation
- http://anhuishangbiao.com/upload_fck/file/2021-7-10/20210710091517497931.pdfIn PDF document text
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/9348a8de568e02726305a16b58b0b7fb/lakudogog.pdfIn PDF document text
- http://mtjjt.com/2013/upload/article/files/210708173119154392hak0y.pdfIn PDF document text
- https://ezgoe.com/10005001208290177/ckfinder/userfiles/files/xexosezitil.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/5163808215.pdfIn PDF document text
- http://sanmargholidays.com/ckfinder/userfiles/files/kikajudaxaxekalexovo.pdfIn PDF document text
- https://sedefartphotography.com/resimler/files/gakizazev.pdfIn PDF document text
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ad9bd08837e---90760456122.pdfIn PDF document text
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c63dfb26605---mubidojamex.pdfIn PDF document text
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16085b940c4f56---59440841361.pdfIn PDF document text
- http://tw-sincere.com/upfiles/editor/files/lutaxemi.pdfIn PDF document text
- https://aashianarealty.com/file/66167748181.pdfIn PDF document text
- http://stevis.cz/files/file/dogedugekevuvuwofu.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a27b9197dd3---14431776932.pdfIn PDF document text
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/cr0bkj961otgkdgcft96pehlp4/30052782139.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160a07f7ee21f2---13857072428.pdfIn PDF document text
- https://pelletier-tp.fr/ckfinder/userfiles/files/37617146753.pdfIn PDF document text
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16083fd3d56125---rafunetuwus.pdfIn PDF document text
- http://ugrctrani.it/userfiles/files/30349421813.pdfIn PDF document text
- https://kme.pl/global/app/webroot/uploads/file/16276536777899.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160adb7f548053---tesivumavojizugipufig.pdfIn PDF document text
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/7d15smddf1iqtdg9q1622houj8/16344203933.pdfIn PDF document text
- https://samtee.com/admin/images/file/89081907077.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609d3efa6383f---8000531877.pdfIn PDF document text
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/c63053afe07c27d51b83588b27a50eaa/xetarunululas.pdfIn PDF document text
- http://csc028.com/userfiles/file/20210607222505_lmpzoe.pdfIn PDF document text
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/516494f07ec7b43b2274f1c7f9b422d1/40805712179.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_off00011007.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11007 | 19264 bytes |
SHA-256: a9cc25aa369e1a33d3258be4e67dcef8a95c7dd42e8425797ddc8d8354f424c9 |
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font_01_sfnt_off0001416b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1416B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00015982.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15982 | 11084 bytes |
SHA-256: a4f86d7b2cf2e9ab4eae12f66cc568d219628acb3e8c669a26445ead532eabe2 |
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