MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that point to compromised websites and disposable hosting, suggesting it functions as a link farm to distribute further malicious content or phish for information. The presence of these links and the overall structure strongly indicate a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://laborke.ru/uplcv?utm_term=sega+games+emulator+for+android PDF link annotation
- http://thaifilmind.com/UserFiles/file/42125465817.pdfIn PDF document text
- http://archetipoingegneria.it/userfiles/files/jopexexixik.pdfIn PDF document text
- http://colantuono.it/userfiles/files/85448009323.pdfIn PDF document text
- http://wxhsbl.com/ckfinder/userfiles/files/20210915_220802.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/578714ccae8447abebbf4aeadcbb94eb/32598998410.pdfIn PDF document text
- http://stylekd.ru/files/97734731955.pdfIn PDF document text
- http://pobierzplik.pl/uploads/files/55620720264.pdfIn PDF document text
- http://madang.eu/f_pds/fck/file/jixebakanuzume.pdfIn PDF document text
- http://mrukseo.pl/userfiles/file/mawavikakeruzi.pdfIn PDF document text
- http://elistaprezentow.pl/userfiles/file/lujizoba.pdfIn PDF document text
- http://toflight.mobi/attachment/ckeditor/files/5c7bfadd855592f87481f9098cc0fbbd.pdfIn PDF document text
- http://dija.lv/public/userfiles/file/valijana.pdfIn PDF document text
- http://synerfreight.com/syner_upload/images/files/57564385168.pdfIn PDF document text
- http://majstrissmt.eu/www-data/file/25505609729.pdfIn PDF document text
- https://kvizek.excore.hu/ckfinder/userfiles/files/70955521608.pdfIn PDF document text
- http://linkingpeople.info/userfiles/file/74177838721.pdfIn PDF document text
- http://dopuskvsro.ru/UserFiles/sorividobasajigulut.pdfIn PDF document text
- http://quanhoangtsi.com/upload/quangtri/files/41321865212.pdfIn PDF document text
- http://simp-q.ru/userfiles/file/sabatorobux.pdfIn PDF document text
- http://auto-spec.ca/fck/file/61321128904.pdfIn PDF document text
- http://lumieye.com/userData/ebizro_board/file/lusemipepusexukuz.pdfIn PDF document text
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134532ec43be---videfa.pdfIn PDF document text
- http://drivingschool-brno.eu/files/jupukorapaxego.pdfIn PDF document text
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/398d40dbb7da50f16b4fc32cfd756970/36855313066.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_off0000db24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB24 | 18952 bytes |
SHA-256: fad47693879f92897e6c1fd8f9238c68db2c720e713d7397f1194c67fd8b1136 |
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font_01_sfnt_off00010cfd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CFD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012514.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12514 | 10872 bytes |
SHA-256: 90a5cd4c047cdb06fd878dbec63ff3f7c291e6474c55952907c22b5c0a21f6a9 |
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