MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains a link farm pointing to compromised WordPress upload directories, which in turn redirect to external URLs. This suggests a phishing or malware distribution scheme, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
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://irlanc.ru/uplcv?utm_term=mince+pie+filling+recipes PDF link annotation
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d41c710e4eb---64326848704.pdfIn PDF document text
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/66ef397cdc1236b956c3b547b290620d/xubus.pdfIn PDF document text
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160896cf386180---54066097350.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a1842b28fea---norivamu.pdfIn PDF document text
- http://biomassasia.net/data_ed/userfiles/file/82439520871.pdfIn PDF document text
- https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/32c49c7fbf46830447ac5355dc0e3073/81962131454.pdfIn PDF document text
- https://tungqibiotech.com/upfiles/editor/files/79182748982.pdfIn PDF document text
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/4f4a44ac93d45e6396373acc2b69e81b/jalegasop.pdfIn PDF document text
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/ruk2affg17k5pbshnh69n5ams7/46080383203.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba1cd149c52---11991366621.pdfIn PDF document text
- http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608565ee870ed---mupewuxikixovitux.pdfIn PDF document text
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/b4f305d703a0af9347ce2068ec07879b/60290798381.pdfIn PDF document text
- http://www.valathors.com/ckfinder/userfiles/files/jironigudeponat.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000104bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104BD | 16544 bytes |
SHA-256: 66b7945b99a9c78025a9a0ace4161995b24b08b80ea391fd428eddc3553bac27 |
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font_01_sfnt_off00011b81.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B81 | 10268 bytes |
SHA-256: 0a9a44b431aa94910ea79c8a306971010a04d9401d0469e2d9533d78ac57d8fa |
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font_02_sfnt_off000132aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132AA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_03_sfnt_off00014abc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14ABC | 19068 bytes |
SHA-256: 691b59941dbc9d5aade8e1b8caa750f432f64e6ee66f7379ff011fe3b566dbb0 |
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