MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF acts as a link farm, directing users to multiple compromised websites, some hosted on WordPress upload storage. The embedded URLs suggest a phishing or malware distribution scheme, potentially leveraging the document body's appearance as a legitimate file to trick users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://archism.ru/uplcv?utm_term=introduction+to+statistics+and+probability+by+nurul+islam+pdf PDF link annotation
- https://canevastoilestjean.com/upload/editor/file/wasilebimufetuzeviluzole.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160bae9ea5ae40---kipovevudawojajonizorer.pdfIn PDF document text
- https://ap-qatar.com/userfiles/files/pixizexaxananar.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a1c2dba4b8c---48895935073.pdfIn PDF document text
- https://conexusinternational.com/ckfinder/userfiles/file/veroxafemilaz.pdfIn PDF document text
- http://studiopignotti.it/userfiles/files/fimozagexapupini.pdfIn PDF document text
- http://placc.info/up_image/36425931225.pdfIn PDF document text
- https://syteq-pro.com/userfiles/file/bokowuxaruro.pdfIn PDF document text
- http://m4klynchburg.org/clients/3/34/34420611de4c9c7593cf5e5fe12de6df/File/3340274654.pdfIn PDF document text
- http://edwardfmcgintypa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/41147825348.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d369bf12c50---18152955215.pdfIn PDF document text
- http://www.corazondelsol.es/ckfinder/userfiles/files/nuwoloveka.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/s6rrop7h7tsg5ifgs9lg638ph3/44021348714.pdfIn PDF document text
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/ol67umddg70uqh3mopru561hba/mupexukanexene.pdfIn PDF document text
- https://divinenine.net/userfiles/file/wazozu.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/6eguah9841mpbrfeaje3d4vei6/jobafu.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/a101a090a281ccdac97e8218562e2afd/80113195254.pdfIn PDF document text
- http://narnivet.com/userfiles/files/jeniruresabapopad.pdfIn PDF document text
- https://indirimlipin.com/calisma2/files/uploads/fiwipat.pdfIn PDF document text
- http://aloisiquadri.it/userfiles/files/19837465391.pdfIn PDF document text
- http://www.hangmandigital.com/files/file/63121533014.pdfIn PDF document text
- http://pickup-ws.com/userfiles/files/19919643918.pdfIn PDF document text
- http://popeyebio.com/upload/files/48753598918.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_off0000d66c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD66C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ee7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE7E | 18564 bytes |
SHA-256: ee812d014bb9ffb52af7575c31123c9e07b98e858f67bb8c8b334eabcbc5af96 |
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font_02_sfnt_off00011ef5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EF5 | 10952 bytes |
SHA-256: ddb1d7e5ebe215c95e7e29402a5483d574715700260c5640c08532fe136dc3a1 |
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