MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised or disposable hosting sites, which is a common tactic for phishing or distributing further malware. The presence of numerous external URIs and link farm heuristics strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://coretry.ru/uplcv?utm_term=custom+seekbar+android PDF link annotation
- http://bangladeshceramicsociety.com/uploads/editor/files/kurupunuxakudenoxefij.pdfIn PDF document text
- https://naveenent.com/administrator/imagetemp/file/disil.pdfIn PDF document text
- http://exosportsante.fr/ckfinder/userfiles/files/77764730835.pdfIn PDF document text
- http://cascad-trans.ru/files/jaxojanokojomir.pdfIn PDF document text
- http://aminotp.com/upload/files/lipaxovikimugo.pdfIn PDF document text
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/au7jhebgrqmuscd35klkdo6mf5/48813421494.pdfIn PDF document text
- https://areicon.com/images/file/donin.pdfIn PDF document text
- https://xn--psg-9lac.hu/files/files/86736180313.pdfIn PDF document text
- https://slezanie.eu/userfiles/file/podivonur.pdfIn PDF document text
- https://zenit-npk.ru/files/file/mepowama.pdfIn PDF document text
- http://noithatsah.com/webroot/img/files/wuriguzaveluzekufiloxeza.pdfIn PDF document text
- https://etravelbox.com/scgtest/team-explore/uploads/files/18145044349.pdfIn PDF document text
- http://zhouzhuank.com/v15/Upload/file/20219111116556444.pdfIn PDF document text
- https://egyiksem.hu/uploads/file/zuzanibijupamixoge.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/7617121b1c2860ded5339318bee090b2/55912437293.pdfIn PDF document text
- http://hotdeals24x7.com/ci/userfiles/files/melamupubiroga.pdfIn PDF document text
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/d7e1206fae4567a13fea51cae6b4c915/xamijikepaxebane.pdfIn PDF document text
- https://bruceleevideos.org/images/file/nikaruviko.pdfIn PDF document text
- http://airelimpio.mx/img/editor/file/wasapijepetiru.pdfIn PDF document text
- http://xn--9w3b270a7kf.kr/data/editor/file/xujite.pdfIn PDF document text
- http://vtvxm.vn/userfiles/file/mudajebujabasamevunomapux.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/161414065e66ca---wakinezobiluzoredu.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_off0000b78e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB78E | 16712 bytes |
SHA-256: a5bfc7b4a6b35b705a6ec57497852da196f82629df617a556e3a42a2cc3d9d4e |
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font_01_sfnt_off0000e304.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE304 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fb1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB1B | 10728 bytes |
SHA-256: ea133c5e3c600df1f06911f20d9a99f268fb9f6c18835c34a1cc88b8353caa1d |
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