MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous external links, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to distribute malware. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to trick users into downloading a secondary payload via the embedded links or a deceptive download button.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://tourister.kr/userfiles/file/zaboronubizivojinitet.pdf
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/c8c0b710a91f46f6d2b4cb6a0eff71f9/kuxesufedafif.pdf
- http://hnc2.com/userfiles/file/35891023041.pdf
- https://anitacalderon.com/ckfinder/userfiles/files/laderumilure.pdf
- http://fsoa.cn/userfiles/file/55343881041.pdf
- https://akapacha.com/userfiles/file/47391666705.pdf
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/hag3heelbr2ip6h2cupen2rn75/jusitor.pdf
- http://ambulanceservice.pl/userfiles/file/66174439446.pdf
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c23b609674---14421591729.pdf
- http://pepinieres-soupe.com/userfiles/file/nepoxo.pdf
- http://www.syrahresources.com.au/application/third_party/ckfinder/userfiles/files/gafezuxedozanogafakuza.pdf
- http://parkwaywest1974.com/clients/861606/File/54407697258.pdf
- http://mirai-kankyo.com/userfiles/files/liwopotapegetofeginab.pdf
- http://lucidareemantenerepavimentifaidate.it/userfiles/files/sufamipekaponemo.pdf
- https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/c74d633d39bb88c50baf322c5daf4814/nobid.pdf
- https://bisnismedsos.com/userfiles/file/70321572320.pdf
- https://ssmavidiyar.com/public/content-images/files/29705677764.pdf
- https://mashtalkandil.com/userfiles/file/37042679714.pdf
- http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608f6d4986973---midisepogutodo.pdf
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/dsc5ti23rg44vl682b8iqssejn/36226788818.pdf
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/je221f1o04idc5tn04m6jg8pb6/pojekazurokoman.pdf
- http://omgmediatank.com/userfiles/files/68838917033.pdf
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/epf2vrmdctsup8ga61ruhm1h1e/xutotanovipipivu.pdf
- http://qca.ch/userfiles/file/xilukavezi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=oxford+handbook+of+anaesthesia+pdf+free+download
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f4db.bin02867b931bec1c1fb58daf328d86109e17294e1aab27406727da20ee2a82877a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4DB | 17588 bytes |
font_01_sfnt_off00012322.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12322 | 16792 bytes |
font_02_sfnt_off00013b39.bind51b61cf8cf8f1ba541f4b9a6a82368a3f39cbbf5df28c660f41a0b657fa7712 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B39 | 11040 bytes |
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