MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to compromised websites and a deceptive download button, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and linked URLs point towards a malicious download lure, likely attempting to deliver a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 8
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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 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 https://cructi.ru/uplcv?utm_term=how+to+disable+group+tabs+in+chrome+android
- https://tgvl.in/uploads/fck/files/30992435062.pdf
- http://www.chp.pl/ckfinder/userfiles/files/36037767418.pdf
- http://clinicaveterinariacittadivignola.com/userfiles/files/donibatadabamovovatak.pdf
- http://josephfellerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/laven.pdf
- http://perfect-gallery.com/userfiles/file/daluzunojifowodexomufezok.pdf
- https://nhanloc.net/userfiles/file/23984895810.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613d96f23f436---magupibabeguguxor.pdf
- http://yachts-trade.com/files/xebakusotejifekuwibo.pdf
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16132c5fc6e0f4---78941741918.pdf
- http://awkontrakt.pl/ckfinder/userfiles/files/betufogatopoxepivasuxeg.pdf
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/3g4dm9juemmknjroqbrenoroh3/47770732208.pdf
- http://ausafe.net/images/art/files/zaripunan.pdf
- https://aucordechasse.fr/vosImages/5352427135.pdf
- http://lingvastar.z-i-g-z-a-g.com/userfiles/files/4947158073.pdf
- https://parc-hotel.info/file/gasepetubewavagi.pdf
- http://castudio.eu/userfiles/files/bojavawifuzogox.pdf
- http://tz5168.com/uploadfile/image/2021/09/23/file/20210923_034652_169.pdf
- http://msslink.ru/userfiles/files/dizepeb.pdf
- http://forti.in/userfiles/file/lasugokepofamarisipavol.pdf
- https://quangcaomattroi.com/uploads/news_file/22704029402.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613abb52b0dea---58304458463.pdf
- http://www.findvoters.com/userfiles/file/juboxujidinapisopuz.pdf
- http://a2kat.ru/userfiles/file/ketitezolita.pdf
- http://xn--b1agpbmdtf.xn--p1ai/upload/file/78311906915.pdf
- http://www.salac.cz/ckfinder/userfiles/files/51436543021.pdf
- 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_off0000d684.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD684 | 16792 bytes |
font_01_sfnt_off0000ee96.bin2482116e6ae55aa15260be282a29d626c2bb12bbd63a124e0d6ca818d1365586 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE96 | 18608 bytes |
font_02_sfnt_off00011ec7.bin817729434f0cd0643a54e6bb1204b837b1e3af821562cd127d7c11b6d7d3c5e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EC7 | 11276 bytes |
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