MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains a large number of links, many pointing to compromised WordPress upload directories, suggesting it functions as a link farm to distribute malicious content or phish users. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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 http://onlineticketreview.com/images/file/71671850976.pdf
- https://amenajarisiconstructii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607cfad16c88c---febigikeborejoxuj.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b23269a141f---rutiwav.pdf
- http://omonetach.pl/foto/ilustracje/file/karudukoliwiparowuso.pdf
- http://s8radziejowice-paszkow.pl/userfiles/file/gufetusiwexavavuwuxu.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087101a4c929---xiparanuwazujoxowe.pdf
- http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098b5bd314d5---bumajurolilugolajun.pdf
- http://www.bordadoindustrial.com/ckfinder/userfiles/files/nozamola.pdf
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/6135fc30c9050b15a12fb1c8d4f39866/99357149200.pdf
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1607c1e726a17b---wivedis.pdf
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160994aba9fa0f---komugixupediwifibopizu.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8303e4818---84552918206.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160836310a9778---64627018243.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c4bf26326a4---15844921982.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609811aee4d16---15118473757.pdf
- http://work4shop.cz/userfiles/file/6619343026.pdf
- http://www.aadhar-interior.com/userfiles/file/94046788319.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/8dcaaf024c77cb88121c0ee39f434006/tazodimaxeguwom.pdf
- http://bafiti.com/sklep/userfiles/file/mivewemavolaz.pdf
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f05cf55718---24594806370.pdf
- http://reicar.dk/userfiles/file/pulabuxaz.pdf
- https://rajatotogroup3.com/contents//files/latojiwuwagejadu.pdf
- https://szallas-karpatalja.net/upload/pixipawurodi.pdf
- http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202105272144441969.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1607edcb2b1296---14611404317.pdf
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077554ced455---wufulavabaxapun.pdf
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/3bdf25be787120716c9806144427bc88/95887194467.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=50+cent+we+gonna+party+like+it%27s+your+birthday
- 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_off00010dff.bina1f9a747ab65b2cbb29a3501495031b3cf7579ed94606c88fb6bb8a3d8b3a40f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DFF | 11520 bytes |
font_01_sfnt_off000128f3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128F3 | 16792 bytes |
font_02_sfnt_off00014105.bin24066ba2f3d093015aba54f6933a3724286699b686123bbd6c8c38fb5b324a77 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14105 | 17604 bytes |
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