MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including a high ML score and ClamAV detection. It contains numerous embedded URLs that point to various domains, many of which appear to be disposable hosting or compromised CMS uploads. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicates a pattern of creating numerous links on different hosts, suggesting an attempt to manipulate search engine results or distribute malicious content. The presence of 'utm_term' in one of the URLs further suggests a tracking or redirection mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://smidgel.ru/uplcv?utm_term=the+lion+king+2003 PDF link annotation
- http://oxigensupplies.com/shipinc/userfiles/files/72799719765.pdfIn PDF document text
- https://locoffice.ru/userfiles/file/29977871105.pdfIn PDF document text
- http://idcla.net/upload/files/53753883549.pdfIn PDF document text
- https://sanruouvang.net/images/uploaded/file/begeja.pdfIn PDF document text
- http://robalton.es/Albums/images/file///sidepesitowisuxux.pdfIn PDF document text
- https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/kunagijopivenerunigazakul.pdfIn PDF document text
- http://autoskola-weiss.cz/userfiles/jadoke.pdfIn PDF document text
- http://galenbio.com/images/upload/file/50101743381.pdfIn PDF document text
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1612f170110211---lesemasiwusologadokiteka.pdfIn PDF document text
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/rac7mua03s1m92huld9a72dcb5/87657084900.pdfIn PDF document text
- https://ezgoe.com/10005001208290177/ckfinder/userfiles/files/78878299416.pdfIn PDF document text
- https://ecoquimica.cl/dinamicos/uploads/file/fibimabux.pdfIn PDF document text
- https://5974293.pasarantogel.com/contents/files/vixaramimog.pdfIn PDF document text
- https://legouic-peinture.fr/userfiles/file/kowobavirorur.pdfIn PDF document text
- http://starfishdowney.com/uploads/files/99748430393.pdfIn PDF document text
- https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/tefagodamiteje.pdfIn PDF document text
- https://toppelletmachine.com/d/files/filubovusozivapu.pdfIn PDF document text
- https://cristalensi.com/public/File/65854301279.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615f8dc3583bc---82169651123.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/wotitasuwitefonivizaf.pdfIn PDF document text
- http://apothepharma.com/upload/files/91333582580.pdfIn PDF document text
- http://studiopignotti.it/userfiles/files/49788564568.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_off0000b2b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2B3 | 10328 bytes |
SHA-256: f67edb74e047679632e85637f359275573d7780d0e9df94b4b230485a6f93c00 |
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font_01_sfnt_off0000c9f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9F0 | 14392 bytes |
SHA-256: efaee461bf644aa5a496bf51481477f84414295f5a650fd6139ceb149e9e2cac |
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font_02_sfnt_off0000edeb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDEB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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