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. The heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised WordPress sites and other disposable hosting. These links likely lead to phishing pages or further malware downloads, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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 http://hud101.vn/webroot/img/posts/files/porotasuru.pdf
- http://vencedor.coop/images/admin/file/3455346135.pdf
- http://voijin.com/userfiles/files/2202610017.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5292a6663---5941206742.pdf
- http://kahounova.cz/userfiles/file/jetiditasij.pdf
- https://stef-nancy.fr/upload/document/xedugisulujotalitinawow.pdf
- https://nnkcreations.com/userfiles/file/kofozapabab.pdf
- https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/62c9135d7a9a1c335a7f9f7932eaa8c3/womonesexejojuw.pdf
- http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/160d65031d2a62---xorid.pdf
- http://zaragozalawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pipebimegiroxadomepabo.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c1b204a63---zevigofaraw.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/6ncei4cphsd16i2el9oev7vah7/7904225070.pdf
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e7c016ffe2---rovoral.pdf
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baaaac45082---fidolune.pdf
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8720ad7790---67307428437.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160aa0a9d0df49---vojalawa.pdf
- https://alexandrapanayotou.com/web/images/static/file/72291316256.pdf
- https://thesaddlebank.com/wp-content/plugins/super-forms/uploads/php/files/ei8ljvbmmfvdohcc6d9j3tlkkr/zujisanoxuporuvonidef.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607233ac699c6---68011949059.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608d3cba4546f---22562386761.pdf
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160824b0b881a1---4903279854.pdf
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/c650da3366890ef0721c9079364008b6/81952915748.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/b511f8a6575ffc304e545d72c8925392/fisesomukedo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=math+integrated+2+answers
- 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_off0000f828.bin34970f7a00016b335b9e4ffac63a41d3648707258bcfc011f6177a87b3dc3ed7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF828 | 17360 bytes |
font_01_sfnt_off000125d8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125D8 | 16792 bytes |
font_02_sfnt_off00013def.bin1ef40579c8d8462f7f7dff2ee29a94feae76bd96c51437e148a461fbadb15e54 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DEF | 10560 bytes |
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