MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV detecting it as a phishing trojan. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the nature of the heuristics indicate an attempt to redirect the user to malicious content.
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://chcial.ru/uplcv?utm_term=how+to+turn+off+talkback+mode PDF link annotation
- http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/nosatuvozalugajavobupona.pdfIn PDF document text
- https://papersacksfactory.ae/images/bulk_images/files/bajexozoxejo.pdfIn PDF document text
- http://proxima-design.cz/files/file/poderowijomovipo.pdfIn PDF document text
- http://charolais-hessen.de/write/userfiles/file/2838658507.pdfIn PDF document text
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148782f38461---44749076862.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac9b8ccc9d---tuzomikur.pdfIn PDF document text
- http://nbmounts.com/userfiles/file/1630554805.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/n77daf4j3eg7fpmq860ruhcf6b/26529644545.pdfIn PDF document text
- http://magnumprint.ru/upload/files/wagikovegisudido.pdfIn PDF document text
- http://www.petersonassoc.com/emailimages/file/nenenu.pdfIn PDF document text
- https://reparationmobile.net/userfiles/file/15582433088.pdfIn PDF document text
- http://teranor.com/ckfinder/userfiles/files/44835113600.pdfIn PDF document text
- https://glozor.com/userfiles/file/fojewavejo.pdfIn PDF document text
- https://ra7a7p-h3ba7.com/contents/files/72839600345.pdfIn PDF document text
- http://smm-mm.com/uploads/news_file/lugog.pdfIn PDF document text
- http://datong-travel.tw/upload/ckeditor/files/20210904005403.pdfIn PDF document text
- http://4x4autok.hu/userfiles/files/vofotaxiki.pdfIn PDF document text
- http://tverzhilservis.ru/foktver.ru/ckfinder/userfiles/files/dusitisok.pdfIn PDF document text
- http://smflow.in/admin/uploads/file/81879354829.pdfIn PDF document text
- http://tuzvedo.hu/elemek/file/kegikutilorudewabozarenuv.pdfIn PDF document text
- http://barahi.com/assets/userfiles/files/xotumede.pdfIn PDF document text
- https://esz.jp/img/editor/files/25346185233.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_off0000b2eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2EB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB02 | 10788 bytes |
SHA-256: 3a48814980273e6c5ede8c92f612114799297a89c52776e651f4c44867e54e16 |
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font_02_sfnt_off0000e3e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3E0 | 17884 bytes |
SHA-256: a2530aeb2a9b0ccf5a6144c8bb3b4a4e61b59ea612a3894f92fbd83f3d8bddf1 |
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