MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, including compromised WordPress sites and disposable hosting. Heuristics indicate this is a link farm designed to redirect users, likely for phishing or to download further malicious content. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://oniceh.ru/uplcv?utm_term=dizzy+after+vaccine PDF link annotation
- http://geoass.eu/userfiles/files/tovotedogukew.pdfIn PDF document text
- http://polipadel.com/userfiles/file/7249362188.pdfIn PDF document text
- https://b2bircruise.travflex.com/bot/ckfinder/uf/files/gipavewasijubonegukizojaz.pdfIn PDF document text
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/2c12d4ab1509fb9de59724c96d9747c8/gararuzivuzomanonaziki.pdfIn PDF document text
- http://campbellelectronics.com/uploads/podawarafeliteladaze.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140f037ab86e---mudolonuwuwigepomi.pdfIn PDF document text
- http://shijijiaming.net/filespath/files/20210911070514.pdfIn PDF document text
- http://nilesk.com/userfiles/file/42890890128.pdfIn PDF document text
- http://www.leasebridge.com/CKUPimg/files/15168572622.pdfIn PDF document text
- http://zbraneklapka.cz/ckfinder/userfiles/files/6436463914.pdfIn PDF document text
- http://myshiou.com/uploads/files/202109032002337090.pdfIn PDF document text
- http://educasters.co/ckfinder/userfiles/files/wedekegofo.pdfIn PDF document text
- https://anyimaker.com/upload/users/files/34905081628.pdfIn PDF document text
- http://eapver.com/upload/ckimg/files/202109121746037289.pdfIn PDF document text
- http://twtipa.com/upfile/files/2021/09/10/19974793392.pdfIn PDF document text
- http://aranykoronakft.hu/userfiles/file/75102671362.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/aar5ua068i9udm170cbb64tee0/xikotakex.pdfIn PDF document text
- https://accidentmatters.com/ckfinder/userfiles/files/rusinesupuwepewigijapow.pdfIn PDF document text
- http://moskvaznaet.ru/upload/files/tizixedefovevu.pdfIn PDF document text
- https://sowlindia.com/userfiles/file/lemanasetovotidirupukaxum.pdfIn PDF document text
- http://fskyok.com/uploadfile/files/31422918366.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_off0000d2d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2D3 | 19128 bytes |
SHA-256: f88a9b67361f3ef4620bd5f10cacb06de1d2cc4d174cd7d004c7ea27433ebb10 |
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font_01_sfnt_off000103c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103C3 | 10236 bytes |
SHA-256: 91700486ea3be38bf7e47ef18aea619a1a1af525df0562df6473fb3ea3139dee |
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font_02_sfnt_off00011afa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AFA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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