MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious content. The presence of a 'download button' heuristic further supports a lure-based attack. ClamAV detection and ML classification strongly indicate malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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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://chcial.ru/uplcv?utm_term=windows+10+offline+upgrade
- http://studiomarcheluzzo.it/userfiles/files/90946812352.pdf
- http://neteyes.eu/editor_up/12544831451.pdf
- http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/93170703777.pdf
- https://equator-maritime.com/userfiles/file/40512022165.pdf
- http://punaide.com/userfiles/files/begafaropotadenefibaful.pdf
- http://chinawin-consult.com/userfiles/90165272558.pdf
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/nln9h1f7ih98kbokj7erfs5ur8/64327839083.pdf
- https://magatek.com/documents/file/jilefoligobagawa.pdf
- http://kolesnikov.pro/ckfinder/userfiles/files/23131709378.pdf
- https://ka-base.no/images_content/file/23139423503.pdf
- https://dutchfansitenetwork.nl/ckfinder/userfiles/files/jokogajaroxuvurekimaxajo.pdf
- http://nyitotthaz.hu/userfiles/files/kumexesixupopu.pdf
- http://nissanotogovap.vn/uploads/images/files/85291427409.pdf
- http://harchovyk.com/userfiles/file/kojul.pdf
- http://vivatbacchus.hu/files/file/31474740511.pdf
- https://xn--90aoja6ahg5ds.xn--p1ai/uploads/files/92694806532.pdf
- http://cpghollywood.com/userfiles/files/43476476458.pdf
- http://mycoapaisyl.com/webimages/files/36887173118.pdf
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16140e7dd42e59---vixiseti.pdf
- http://asu78.ru/userfiles/file/30468017315.pdf
- https://xn--psg-9lac.hu/files/files/57510209668.pdf
- http://bielwod.com/userfiles/file/78218259796.pdf
- http://noospc.ru/SITE/files/editor/file/dowogalozobasafudumigatek.pdf
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16137c813d22bc---mugavikeketizilosuvusure.pdf
- http://evolutionchonburi.com/userfiles/files/15521221690.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_off0000e29d.binf333dab74c4d3bafbe84546a2e79a4a0cace4856cc86e0c7f6a61ca9e15f81a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE29D | 17648 bytes |
font_01_sfnt_off00011058.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11058 | 16792 bytes |
font_02_sfnt_off0001286f.bin9fb83a3dc5c19817c861a141925df7c3a39dcf5989a9a13f67e303e6e15fb5c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1286F | 10928 bytes |
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