MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm hosted on disposable or compromised domains, with numerous embedded URLs pointing to potentially malicious content. The document body was unreadable, but the overall structure and URL analysis suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://crysiq.ru/uplcv?utm_term=android+double+tap+screen+on+off
- http://andreuma.madteam.net/ckfinder/userfiles/files/92159230286.pdf
- https://2acontractor.it/images/file/limilekipenigijopirakowog.pdf
- http://www.s-prom.si/fileupload/file/gomupo.pdf
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/qjnmqbietomt15c1recl93ju4i/83572793447.pdf
- http://movesearchesuk.com/userfiles/file/davuv.pdf
- http://kanalizace-ul.cz/userfiles/file/2106465260.pdf
- http://unicaconsultoriarh.com/images/files/tofilolat.pdf
- http://mathcountsoutreach.org/userfiles/file/44850184114.pdf
- http://newgatedesign.com/Images_upload/files/39346581778.pdf
- http://www.ufolep-69.com/contenus/files/83874734540.pdf
- http://youandisagenix.com/ckfinder/userfiles/files/86181132420.pdf
- https://norservis.com/files/files/guwebediguzawozi.pdf
- http://netinflux.net/userfiles/file/bonafomaz.pdf
- http://joltiy.ru/uploads/files/1093531789.pdf
- http://stauarchitetti.eu/userfiles/files/perixazom.pdf
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d3a3571fe6---76651051169.pdf
- https://cqc-material.com/app/webroot/userfiles/files/68896824497.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613befc9c4264---26615450545.pdf
- http://tw-jia.com/uploads/files/202109070226157067.pdf
- https://regionalhealthprogramsww.com/images/file/fegaj.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131c71b17506---veteloget.pdf
- https://drhuanghair.com/uploads/files/202108312254046905.pdf
- http://perfectionistpaintingnj.com/ckfinder/userfiles/files/60399093232.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_off0000d77e.bin7d5c5a90d980a7c800cf6cafa471765c2779cd94bc67129288f991535763fcfd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD77E | 18920 bytes |
font_01_sfnt_off000108e2.bin2dbbf420224a5156729fc019be23551c13a14af158983a7d2837c1f57420dcd1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108E2 | 10836 bytes |
font_02_sfnt_off000121d0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D0 | 16792 bytes |
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