MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm. The primary goal appears to be directing users to external, potentially malicious, websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 http://85560891.com/upfolder/e/files/20210816163118.pdf
- http://tvoirostov.ru/ckfinder/userfiles/files/90882882871.pdf
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/8bs7qqvs91fjhetnm48oeoas47/sufuzudefukevepozopajuwi.pdf
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa09046599---93521720049.pdf
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//fireribetizazurisew.pdf
- http://poetische-malerei.de/web/editor/files/kowegexozefoxizoriru.pdf
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/4849ee07569aef3097a10442340ff0cb/91943592000.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16081b6e6cad93---22478484060.pdf
- http://dichvugiayphep.net/hinhanh_fckeditor/file/fibapoxekasefovizidadoki.pdf
- https://detmers-kontejner.hr/files/65121814298.pdf
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/e8380980ff238858d6cfe5a92ee64c9d/tikuzijogex.pdf
- http://iamsong.vn/uploads/files/43185125241.pdf
- http://ukwoodrecycling.com/userfiles/files/93557916619.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a613800fb9d---gitasolatavazetamutowi.pdf
- https://oilbasaro.com/web/images/ckfinder/files/20210719114846.pdf
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/531e9604a03882bba0dc2f69e217bed5/xusupa.pdf
- https://ooo-kenk.ru/userfiles/file/85334469208.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c85f114ba6d---nufet.pdf
- http://udaybharat.in/ckfinder/userfiles/files/47623901825.pdf
- http://worldtile.net/jangheung/userfiles/file/doviraravupuged.pdf
- http://luvnchrlysenglishtoys.com/clients/861429/File/96008694755.pdf
- http://hzzxtl.com/UploadFile/file/20210617034656553.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=2018+chevrolet+colorado+lt+owners+manual
- 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_off0000dc7a.bin4cebede6f0e18f61d6a2cc9b298c9a33a5839aaaa8365f5717455ab3c0da4197 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC7A | 11200 bytes |
font_01_sfnt_off0000f6b6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6B6 | 16792 bytes |
font_02_sfnt_off00010ec8.bin5f69f04c1a396f96607e68afcd9bc8c795cf8c23e1d51ef2183734d948d86fc6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EC8 | 19408 bytes |
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