MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM indicates the document is a link farm on disposable hosting, likely intended to manipulate search engine results or host malicious content. The presence of external URIs and compromised CMS upload links further supports a phishing or malicious redirection attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://oniceh.ru/uplcv?utm_term=chess+openings+trainer+pro+apk PDF link annotation
- https://mandarinkinesiska.com/userfiles/file/97253425334.pdfIn PDF document text
- https://syntellect.ru/Repository/file/96444239076.pdfIn PDF document text
- https://rougezenekar.hu/files/file/83002423983.pdfIn PDF document text
- https://alarrabnews.com/images/content/content/file/6719084611.pdfIn PDF document text
- http://artstudiodesign.it/userfiles/files/napepasomiposulomir.pdfIn PDF document text
- https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e43439e207---tugakobuvew.pdfIn PDF document text
- http://frickcontrols.com/uploads/files/jujejonax.pdfIn PDF document text
- http://nataliashishkina.com/userfiles/file/43295292299.pdfIn PDF document text
- http://nceed.kr/pds/userfiles/files/18639403688.pdfIn PDF document text
- http://rootbeadmill.com/upload_fck/file/2021-9-6/20210906035513262708.pdfIn PDF document text
- http://speckrepej.com/upload/file/tigadewuzekapekojag.pdfIn PDF document text
- https://learnrkb.jugalbandiresearch.com/ckfinder/userfiles/files/xuvopib.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/685038d4f0a594682b11ab7209770ca2/88599956561.pdfIn PDF document text
- http://inwallendorf.de/userfiles/file/37270381837.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/0f596b16350043f9ec878fef1e8bc83d/fitisonizezemubo.pdfIn PDF document text
- http://medicare-darmstadt.de/bilder/UserImages/file/livapokad.pdfIn PDF document text
- https://almoheetmanpower.com/public_html/userfiles/file/45716693835.pdfIn PDF document text
- https://groupunsur4.com/contents/files/7982953608.pdfIn PDF document text
- http://olympicthesportshop.in/uploads/dapodaresile.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_off0000e096.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE096 | 18808 bytes |
SHA-256: b38b62a6d63dc9d53fbcf3734488c2840986cb929d38bd9940620894ee871d55 |
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font_01_sfnt_off000111f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111F6 | 10608 bytes |
SHA-256: 1467abe2eaf5202375f8c5fded7c17e642075a67cb9f2435a660ae8475c513c0 |
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font_02_sfnt_off00012a3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A3F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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