MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document identified as malicious by ML classifiers and ClamAV. It contains a link farm pointing to compromised WordPress upload directories, suggesting it's part of a phishing campaign to distribute further malicious content. The presence of invoice-related language further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609c7c3d3f322---zukuzazi.pdf
- https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082b37c3a1d5---tezedivo.pdf
- https://pmms-online.com/assets/file/jorazopo.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160866b158ea65---84122106025.pdf
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/1609203ce1ccb6---sebikikejoruvamex.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/v7hvocr8u0lokfgsv5m48k6pg2/31293003286.pdf
- http://alnoorcity.com/userfiles/file/fepixul.pdf
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/f1ef8b4eb4b17231ed759280dfba5d54/fimivununi.pdf
- http://extracam.es/app/webroot/arxius/file/25859742211.pdf
- http://hotelamadeustorino.com/userfiles/files/3533400305.pdf
- http://foto-klub.dk/userfiles/file/xubujewewa.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/d1cbaa721db987decfb9c068fe9579c5/jazunomujelejedabup.pdf
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/9ad6b3e60db2bdbd8bd6f769179285a8/58710215273.pdf
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/d15132371a7076565e131e1c9919f8f1/zojifizosekedotome.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/h1qjjbmnpjofcqneqr9gj84cf5/29456666423.pdf
- http://sjhrz.com/images/upload/File/69412108428.pdf
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/fd632c53f66964322aec6b6f985027b2/ragemaborumemoxipavafe.pdf
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/tbhi1veg5ucajrmrvlq5gn3ia0/65048246593.pdf
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/d99ddffc06714e25195ddac6c01bc8bf/85868422834.pdf
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/0205vaefsn0nlgvebiak8bjev0/36223589831.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160c0b5c3c2919---nijonitewupubosusanaxizik.pdf
- http://vizit-k.net/uploads/editor/files/88049839533.pdf
- http://siripanyalamphun.com/user_img/files/lokazokigo.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/11ca3c5287b17d028bc93564e799bd23/bejepowinede.pdf
- http://kryotherapie.net/neu/userfiles/file/fuwifejazivikenam.pdf
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160985608a8ac4---46661461011.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=the+order+in+which+financial+statements+should+be+prepared+is
- 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_off0000e7c2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7C2 | 16792 bytes |
font_01_sfnt_off0000ffd4.bin9bae29529e07dfd702319be9eb75dcccedd539ff0545f9b08ac90a90131351cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFD4 | 16176 bytes |
font_02_sfnt_off0001296b.bin373cdba72f4ab928c790f48c44be43ee873d415552790fd0d95d873ee7b2237d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1296B | 11172 bytes |
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