MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to compromised WordPress sites. The ML classifier also flagged this PDF as malicious with high confidence. The presence of a link farm on potentially compromised infrastructure suggests an attempt to manipulate search engine results or redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 5
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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://bpsstudio.hu/uploads/19261368278.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d550b0b329---filonoro.pdf
- http://aliceinformaticasrl.com/user/pages/41598934445.pdf
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afa76cae1a1---wasapijujotikomugaze.pdf
- https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/6fda9f05372116f3bb9d93a8d10b66a6/pisadafumumujipuwone.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160973b9bceee1---26812976181.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/6a2d867244677924228c2745ffce35c5/40953031685.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb15e2a969---duwanedosuzifopikile.pdf
- https://wodepcb.cn/uploadfiles/files/49641667219.pdf
- http://pogservice.ru/userfiles/file/14076762676.pdf
- http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/xipiduvefemufibefe.pdf
- http://bhs-class1957.com/clients/35434/File/81116717581.pdf
- http://clairvoyantinfotech.com/demo/images/12360161202.pdf
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/f0e2hrh3os969hu3e07c3jtgq2/36092639966.pdf
- http://asesorgubernamental.com/images/file/xumekolun.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5d96f252ac---91583152384.pdf
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160940ec24456c---nekunu.pdf
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/e15fa9528120983fd1852db013b0d333/dikilej.pdf
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/8q3gqdmvnet8hr5ogj9216fbh2/nifutuwiwiwigata.pdf
- http://goref.ru/files/file/lizedo.pdf
- https://actaviaserica.org/board/file/files/31854341456.pdf
- http://harasim.cz/uploaded/files/dalepiridomasi.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=dhoom+2+hd+picture
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac30085d059---85092830732.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_off0000c905.bin58de6aea322cb3799974b784aff00a01d5278b62ddaf61bbd80a45e21bb3c9e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC905 | 10520 bytes |
font_01_sfnt_off0000e0f9.binffd6a0ddba979baac17441afebbe3cbb4b678a6ffadf010b5db81dafd40dc2af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0F9 | 18372 bytes |
font_02_sfnt_off00011030.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11030 | 16792 bytes |
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