MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to multiple compromised WordPress sites and other domains, with many URLs leading to other PDF files. This behavior is indicative of a phishing or malware distribution campaign, likely using spearphishing as an initial access vector. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/st0rk3657q1lc568duv4olengs/81652489166.pdf In PDF document text
- https://aordonez.com/images/contenidos/files/noxefobolafafes.pdfIn PDF document text
- http://bifruit.mk/ckfinder/userfiles/files/mibivuraxerefupepevi.pdfIn PDF document text
- http://pngroup.pl/ckfinder/userfiles/files/37448923244.pdfIn PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613415043176c---mivikodafesu.pdfIn PDF document text
- http://webcertain.net/contentupload/fckeditorUploads/organization_/file/57391802972.pdfIn PDF document text
- http://awfiowv.love-mrt.com/upload/files/64254549256.pdfIn PDF document text
- http://superazs.ru/images/news/file/19884998994.pdfIn PDF document text
- http://100gastro.cz/soubory/files/44451772391.pdfIn PDF document text
- http://kawana.tech/userfiles/file/wemejavapepo.pdfIn PDF document text
- http://gymostrov.eu/gymostrov/userfiles/file/ruxojabojatukopajesogip.pdfIn PDF document text
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/pta9nrsajgucq1lbjr7ssa3ru8/megetukafafe.pdfIn PDF document text
- https://ferropula.hr/files/53846147973.pdfIn PDF document text
- https://mamalight.net/business_school/uploads/file/tamemowesojulu.pdfIn PDF document text
- https://sreekanakananda.com/ckfinder/userfiles/files/32942085513.pdfIn PDF document text
- https://biothiennam.com/media/ftp/file/93446371192.pdfIn PDF document text
- https://camelcarpet.org/d/files/75310893792.pdfIn PDF document text
- http://burmeseburmilla-allevamento.com/userfiles/files/83722340765.pdfIn PDF document text
- http://www.tiendadelbordado.com/ckfinder/userfiles/files/giruzokufifewonul.pdfIn PDF document text
- http://ziconiavip.com/uploadfck/file/98022314038.pdfIn PDF document text
- http://portamarioarchitetto.eu/userfiles/files/71953626979.pdfIn PDF document text
- https://coil.hk/upload/files/nizejekakezoruxafunufav.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=graphs+in+data+structures+pptPDF 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_off0000bda4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDA4 | 10584 bytes |
SHA-256: bd7f5300f7eace06fc1f1f9055b944850f8bc243c020356ffa14f57e33cb062e |
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font_01_sfnt_off0000d5c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5C3 | 18356 bytes |
SHA-256: b5b2f2c7c0e28c4db278ff1b4314148fb24186f20455e178cd8fa2eb0768de79 |
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font_02_sfnt_off00010553.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10553 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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