MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm with numerous URLs, many hosted on compromised CMS platforms or disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://icon-studios.com/userfiles/file/51281512433.pdf
- http://secondhandgraphics.com/usrfiles/file/gilimokazofuferusojili.pdf
- https://s-h.cc/uploads/files/202109041746065651.pdf
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/8688cb154df8f4e54c4e4b119fea7415/60378652032.pdf
- https://smshealthcareservices.com/ckfinder/userfiles/files/fubujoduzuwabadonojafopob.pdf
- http://apcmagon.com/userfiles/52108441635.pdf
- https://sainaudit.mn/File/15251408203.pdf
- http://soosanfix.com/upload/fckeditor/file/37504061180.pdf
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613424080f9d2---96327301967.pdf
- http://fese.in/ienupdimages/images/files/majuwekitepubut.pdf
- http://minhledtran.com/luutru/files/56557742063.pdf
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/9670378067.pdf
- http://www.radio-kum.si/data/files/tokaxunafusep.pdf
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/1d6a7d5fa4153896c4e549cb15778be4/jepabogenuxudipivo.pdf
- http://artechq8.com/beta/uploads/files/figopuwivefeziziguxal.pdf
- http://henghuitong.com/jingkelun/userfiles/files/20210906150611.pdf
- https://nepaltrekkinginhimalaya.com/assets/userfiles/files/48217497560.pdf
- http://bangtutrang.com/upload/files/19725839622.pdf
- http://merrygoldholidays.com/ckfinder/userfiles/files/64791718257.pdf
- https://immo-cjeanpaul.lu/userfiles/files/tevudadadugozir.pdf
- http://abwferrellpkwy.com/uploads/files/40227459402.pdf
- http://onlinetradeshow.ir/uploads/files/68256778966.pdf
- https://ceccardolj.ro/userfiles/file/91001262601.pdf
- http://geoman.cz/data/file/maminifup.pdf
- http://meijialx.com/ckfinder/userfiles/files/wujunuzimedazo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=beginning+with+p
- 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_off0000fde8.bin563c271a3301b4692a00b49053147919b048485d2b51f7b1317f71e1024f0c51 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDE8 | 10072 bytes |
font_01_sfnt_off00011447.bin75a52dcc1ffdf8f831fc114f02ad4ab0d9b2d4b47d6baa27733ce67c502687ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11447 | 18616 bytes |
font_02_sfnt_off00014449.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14449 | 16792 bytes |
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