MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many pointing to compromised or disposable domains, indicative of a link farm designed to lure users to malicious sites. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this phishing or malware distribution intent. The ML classifier and ClamAV detection further confirm its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://synerhu.ru/uplcv?utm_term=how+to+put+sim+in+android+phone PDF link annotation
- http://secureyun.cn/uploadfile/file///2021090314474942.pdfIn PDF document text
- https://aquafilling.com/userfiles/file/40013616699.pdfIn PDF document text
- http://intimatehotelpattaya.com/image/upload/File/ribeteboxasi.pdfIn PDF document text
- https://cuatudongsaigon.net/uploads/files/45246849039.pdfIn PDF document text
- http://articolo17.it/siti/usr/foto/files/zadabagawub.pdfIn PDF document text
- http://xn--90aoaidn.xn--p1ai/ckfinder/userfiles/files/91136785155.pdfIn PDF document text
- http://dalboncostruzioni.it/userfiles/files/gerilifibigirif.pdfIn PDF document text
- https://detectiveoffice.net/userfiles/file/26661538952.pdfIn PDF document text
- http://lideparts.com/userfiles/file/1631897615.pdfIn PDF document text
- http://bretagne.annuaire-regional.com/ckfinder/userfiles/files/molone.pdfIn PDF document text
- http://ieltsadd.ir/cache/fck_files/file/kebegekejamibitiwazixigij.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/c9bf70b9c705ac65d862d3aed6a7c6d1/gepebupesogelovu.pdfIn PDF document text
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1614424540b81f---dawovibep.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16137be1dd797e---38745303253.pdfIn PDF document text
- https://mimpishio2bet.net/contents/files/fibarut.pdfIn PDF document text
- https://comfortinnbarrie.com/phpsites/vertical_living/uploads/file/dudilenipasirepizamiwu.pdfIn PDF document text
- http://gorsilawfirm.com/userfiles/file/42881616613.pdfIn PDF document text
- http://cck-brno.cz/ckfinder/userfiles/files/97404785624.pdfIn PDF document text
- http://e-park.es/img/uploads/files/vojizalodovekip.pdfIn PDF document text
- http://ducthanggroup.com/webroot/img/files/42026572908.pdfIn PDF document text
- http://caudafotografia.com/userfiles/files/segedufejimutu.pdfIn PDF document text
- http://spodne-pradlo-2bpoint.sk/UserFiles/File/tokeso.pdfIn PDF document text
- http://sdds.be/userfiles/file/nivaparetaw.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_off0000f209.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF209 | 10788 bytes |
SHA-256: cc13744abd4a232ab21ac8653fdd79955f258cf9b087182bd73ee5f4c05dff72 |
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font_01_sfnt_off00010ab1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AB1 | 17808 bytes |
SHA-256: 4258035bfa96db66fb2b709acb5c54590093e0100b0dd4441bf97d3403d643de |
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font_02_sfnt_off000138fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138FC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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