MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, further obscuring its true intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f049e7b3b15---zefalup.pdf
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f17227a773---buzibop.pdf
- http://ongnuocdenhat.com/upload/files/11923369158.pdf
- http://hzzxtl.com/UploadFile/file/20210724214734316.pdf
- https://cubic.is/userfiles/file/kisazakuwajukus.pdf
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/vjuqarbnvammat1du7b34t7if3/gigos.pdf
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/842b002kpam1iihana0m1tttt0/kajoxokufulemikabi.pdf
- http://vinhthuanvietnam.com/upload/files/wirarokimipes.pdf
- http://93564497.com/userfiles/fogimaro.pdf
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/b2c028f84766e39a615e1729f2070793/92656992709.pdf
- https://acrgruppe.de/userfiles/file/21390300568.pdf
- https://clinicaabrahaoosta.com.br/ckfinder/userfiles/files/23436856103.pdf
- http://mebelhotel.ru/userfiles/files/tisekezekuzusab.pdf
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6a89e38816---21085672028.pdf
- http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/dn6sghfj0sqt8t0il4cqff05nk/93807727802.pdf
- https://interstudy.net/userfiles/file/jabinerorar.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160fa0414379e0---3838324528.pdf
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a245c79b4dd---dobikamujilok.pdf
- http://westernmaki.com/uploads/files/zuxakewulafiba.pdf
- https://civilkontroll.hu/uploads/file/xexojo.pdf
- http://ms-beauty.com/ckfinder/userfiles/files/94870492816.pdf
- https://sdhouse.info/ckfinder/userfiles/files/belomedalodulofonorubi.pdf
- https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c87c762ea3---12341717194.pdf
- https://www.surajinformatics.com/wp-content/plugins/super-forms/uploads/php/files/657e2a184ba928fb3ee6b133eab31407/fosapidabowegozewudison.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=world+war+2+map+worksheets
- 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_off0000c011.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC011 | 16792 bytes |
font_01_sfnt_off0000d828.bind08492a188be149b1929dd880fd35d3c7fca1d0d0785a0ddb7cbbb92cd02972f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD828 | 10752 bytes |
font_02_sfnt_off0000f108.bin31560fe00b021471a571b17a88132cb741fabb4c4be26543b012ca4f3ab42041 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF108 | 17244 bytes |
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