MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the PDF structure itself, along with the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic, strongly indicate a phishing or malware distribution scheme.
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://medvor.ru/uplcv?utm_term=scribble+animation+apk
- http://mdbim.pl/ubezpiecz/obrazy/file/10151157620.pdf
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/161427f6f4cae7---manobelipavubaladi.pdf
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/ba235d310bf34bc537a7bbd123373244/zurofazoko.pdf
- https://rosenstein.lu/userfiles/files/57232888301.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134e2a6a6a88---sokozuworatutuket.pdf
- https://bishopsalamatkhokhar.org/userfiles/file/zawusewumisejofapejafak.pdf
- http://uteambio.com/upload/files/bavulovusemabo.pdf
- http://lungshingcentre.com/userfiles/penotigobe.pdf
- http://borneneskontor-landsforening.dk/userfiles/file/kapijuwinu.pdf
- https://saikekanglun.com/filespath/files/20210906033202.pdf
- http://ricarda-allegra.de/userfiles/file/tulifisube.pdf
- http://msslink.ru/userfiles/files/11440807812.pdf
- http://smelawservice.com/file_media/file_image/file/tejeworomono.pdf
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/161343eaeab782---navatexorigojosevod.pdf
- https://weilaimachinery.com/userfiles/files/fidawub.pdf
- https://fontaine-eva.fr/userfiles/files/40431234392.pdf
- http://abwalabamaave.com/uploads/files/70356550179.pdf
- https://mgs-on-track.com/uploads/misc/files/fisovif.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614214697d643---91425721101.pdf
- http://sualpturizm.com/userfiles/file/88760898512.pdf
- http://thienminhgroup.com/uploads/userfiles/file/19660274348.pdf
- http://dom-2000.ru/ckfinder/userfiles/files/pubuw.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/161341d428caab---94516581228.pdf
- http://studioturina.com/userfiles/files/rajesuzasupofijufanuwu.pdf
- https://cheeselicious.net/UserFiles/file/bukajejasin.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_off0000d10f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD10F | 16792 bytes |
font_01_sfnt_off0000e926.bindf5a7bcbf8e0eb76a2491b8d8caace699a2fb55cfdcb5008d6105593fbce5365 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE926 | 10676 bytes |
font_02_sfnt_off00010155.bin4fb3a5c5ad28b22240d2835d833a31e9ca93825477062e2d699bf69952f850cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10155 | 18896 bytes |
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