MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm directing users to numerous URLs, many hosted on compromised CMS uploads, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. No scripts were extracted, but the structure and URL patterns are consistent with a malicious PDF designed to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 http://liga-stf.ru/i/upload/files/42946962006.pdf In PDF document text
- https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/ks3hm7d81hj7pbbi7667pp58b0/56618984470.pdfIn PDF document text
- https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/gdnv1i1v5u1hd6prvsifv134gv/tirurojez.pdfIn PDF document text
- https://primer-spb.ru/files/files/25907609450.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab4b02a75d8---vovamipivuvifizezenenuwu.pdfIn PDF document text
- http://theleadershipworks.com/PO2/UPFILE/userfiles/files/90966191454.pdfIn PDF document text
- http://amon-syotengai.com/userfiles/file/91918745165.pdfIn PDF document text
- http://blessedfamilycovenant.org/clients/c/cb/cb727bc273eb4203dc66fb73741ae5ae/File/58976733392.pdfIn PDF document text
- http://asfalon.com/__files/file/zawefaxeduvemifozovadudul.pdfIn PDF document text
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160798876efe43---50688033472.pdfIn PDF document text
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/0cbda3964ff6aee099ab5cef07d757a1/97118179485.pdfIn PDF document text
- http://www.ecostroyservis.ru/File/45137286173.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/1065472914.pdfIn PDF document text
- http://al-bandak.com/userfiles/file/68747528444.pdfIn PDF document text
- https://easy2ticket.com/upload/files/doruterijulusop.pdfIn PDF document text
- https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/dea8ff2aa3b578f78448746e2f3cb9bf/9915187039.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/16075b67b3688e---2021436655.pdfIn PDF document text
- http://mariopresto.pl/userfiles/file/97894970113.pdfIn PDF document text
- http://telekommarketing.com/firme_data/files/63672485668.pdfIn PDF document text
- http://stoka-saarlouis.de/userfiles/file/mefuvinilezavupikedodugu.pdfIn PDF document text
- http://ulleungroadtour.com/FileData/ckfinder/files/20210903_43E4063DBDDAD7C4.pdfIn PDF document text
- http://trongtinpc.com/luutru/files/fokazibedafu.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/16073021fe68cc---forufeve.pdfIn PDF document text
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/1c372628bf8f74fa08e9ff42d8b4c4c5/86702801683.pdfIn PDF document text
- https://sieuthimaycafe.vn/uploads/file/54693680587.pdfIn PDF document text
- https://congtydaihai.com/upload/files/zozagubi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=electroanalytical+chemistry+a+series+of+advances+pdfPDF link annotation
- 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_off0000d13d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD13D | 11048 bytes |
SHA-256: df7ca78c4e881d1239eba5337f8204d3cc9086c05682a118299abc1bb66825cd |
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font_01_sfnt_off0000eac8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAC8 | 18512 bytes |
SHA-256: 76a0a5882ea4fbcafe7e9b50325616ca1a9102e0930b2e74a05783a0099e4d0a |
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font_02_sfnt_off00011b0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B0B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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