MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristic analysis revealed it functions as a link farm, directing users to multiple potentially compromised websites. The presence of numerous external URIs and PDF link farm indicators strongly suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://adminico.nl/userfiles/file/xebekusetukejafodes.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/a7b26da03cbd6a5a4cff66fa15b7cdce/75978212862.pdf
- http://meadescafe.com/userfiles/file/2780549222.pdf
- http://xn--h1agcmh.com/ckfinder/userfiles/files/73976114951.pdf
- http://www.pantonerestauri.com/ckfinder/userfiles/files/37878418663.pdf
- http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/gojogeweriwot.pdf
- http://jingmingtai.com/filespath/files/20210910040111.pdf
- http://ekorob.pl/userfiles/file/mofesarokexikavanakol.pdf
- http://www.egavilanes.com/ckfinder/userfiles/files/vafelazajigixudoza.pdf
- http://iranjobex.com/cache/fck_files/file/73462085677.pdf
- https://miltonmattox.com/userfiles/file/judazal.pdf
- http://coeb.eu/userfiles/files/mamilatisotutofofamuropu.pdf
- https://www.milestonesmn.org/ckfinder/userfiles/files/gixazogi.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/bv5k5bia4viqctmcchcgastnq0/nokig.pdf
- http://letnipohar.cz/upload/file/40737269001.pdf
- https://shirbandifelt.com/userfiles/file/19930760187.pdf
- https://seerupit.dk/assens/file/lidulatijomitazap.pdf
- https://vantainoidia.vn/ci/userfiles/files/6425685811.pdf
- http://mdtrend.hu/files/file/jalebuxamupuwemifibuwepu.pdf
- http://unityproductions.com/upload/files/21631194803.pdf
- http://tdsns.ru/userfiles/file/29625458102.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/161395163420f3---taruzikowazusaturodiwuf.pdf
- http://solarexperten.ch/fckeditor/editor/images/file/weronivegudaxojukaxuvu.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=ebay+app+android+market
- 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_off0000e5e1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5E1 | 16792 bytes |
font_01_sfnt_off0000fdf3.binf38b9e3e4818b41d607fd23324170231b7f9f1826923ef38762c3783e0fb0e8e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDF3 | 17232 bytes |
font_02_sfnt_off00012a50.bin81fb49542eb2f8ed8d2dbf8620656471fcb883a49ebb6239865b3332c9a7d8dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A50 | 10668 bytes |
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