MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised websites, some of which are hosted on WordPress upload storage. This suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 https://www.marjojaspers.nl/ckfinder/userfiles/files/59160381065.pdf In PDF document text
- https://nepalmicrofinancesummit.org/userfiles/files/maxulobedis.pdfIn PDF document text
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1608bc614bee34---ritubufalimapotojimiko.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607013a650cf3---divakanefexuxalajojalun.pdfIn PDF document text
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/olagf1a55jlo89sf6ugh96r0e3/49790978073.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160a5184a3b98f---16956054284.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/161041db326feb---rixuxifofodeko.pdfIn PDF document text
- http://sungsam.net/userData/board/file/66467255792.pdfIn PDF document text
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160988e52a0d1d---18293195894.pdfIn PDF document text
- http://dichvu12h.net/userfiles/file/94455637709.pdfIn PDF document text
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/3f6f5ab791047dd761c8d90a1e9ac272/xevimofidupawo.pdfIn PDF document text
- http://railwaysrailroads.com/upload_files/files/20968325705.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/bn23os2fm18icosv3ipevbea4u/nabojiwajojudufilarebufa.pdfIn PDF document text
- https://electrodomesticaruano.com/images/ckfinder/files/851078151.pdfIn PDF document text
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5234f10ce---71458428193.pdfIn PDF document text
- http://alliance-ltd.com/userfiles/12885479820.pdfIn PDF document text
- http://bogieclassof67.com/clients/71235/File/kodafivodimow.pdfIn PDF document text
- http://www.psoevalledeabdalajis.es/ckfinder/userfiles/files/pejixolawiwexujazomapul.pdfIn PDF document text
- http://winso.tw/userfiles/file/dutosedisud.pdfIn PDF document text
- http://bajcsidavidfoto.com/_user/file/ruwividijibebimu.pdfIn PDF document text
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609866536d038---40836143720.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160e13319d0eff---zixerigakenonigaviraz.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/8003642f3b61924f54be78b24109f06f/nujakuna.pdfIn PDF document text
- http://2ds-creations.fr/userfiles/file/pibatimeduxobufuz.pdfIn PDF document text
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/57122a9022392fad5c56dc1e1dd0a1e9/ramitezumipisimufavoz.pdfIn PDF document text
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160d2eff36cc55---sujusefirakapebu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=scholarship+for+students+2020PDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f33d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF33D | 11136 bytes |
SHA-256: 14121e134daa0e6d29afc9add226a5d4c918ec87015a47a9bba199cd814bc913 |
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font_01_sfnt_off00010d32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D32 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012544.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12544 | 18388 bytes |
SHA-256: b8b280a910087d205a116e97bdedba9252f305d5b2dee6835d33590cb332feac |
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