MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised or disposable domains, suggesting a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of URLs with 'utm_term' parameters indicate a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://catamma.ru/uplcv?utm_term=pdf+viewer+for+windows+8.1 PDF link annotation
- http://oreoltour.ru/sites/default/files/file/68845376804.pdfIn PDF document text
- https://gastriklandsbf.se/UserFiles/files/rurusez.pdfIn PDF document text
- http://ckud.handysociality.com/upload/files/wemevevimemaxumewuregaz.pdfIn PDF document text
- http://elektro-galerie-hamburg.de/userfiles/file/punuwef.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb9ccc3cb8---9084153468.pdfIn PDF document text
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc78a3967c---3726029138.pdfIn PDF document text
- https://marlin-aquarium.ru/ckfinder/userfiles/files/13729563130.pdfIn PDF document text
- http://capital96.com/userfiles/file/6403933280.pdfIn PDF document text
- http://murzilka.biz/images/uploads/file/poguvudujokitutawejumir.pdfIn PDF document text
- http://abacusnancy.com/userfiles/file/76056177426.pdfIn PDF document text
- https://pushtypathshala.com/demo/aims/files/images/files/xunogiz.pdfIn PDF document text
- http://fantasymusic.it/userfiles/files/genewuwakidomopezofejig.pdfIn PDF document text
- http://www.rify.us/cms-uploads/files/donujiditiduganus.pdfIn PDF document text
- https://zhbiotech.com/CKEdit/upload/files/nedopivegelaxujofegokar.pdfIn PDF document text
- https://ewastexperts.com/userfiles/files/xuxokadepu.pdfIn PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/9tlejksd7a39db7qfs5rt7qvj7/wotadopunepufufib.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/f783fafcb2fe833c1160311c930723f8/nifunuziruxetifil.pdfIn PDF document text
- http://scandirent-new.ru/uploads/assets/file/74112949785.pdfIn PDF document text
- https://lucky-erotic-massage-bucharest.ro/ckfinder/userfiles/files/92928857547.pdfIn PDF document text
- http://dinskayarealty.ru/media/file/vekapepowej.pdfIn PDF document text
- https://groupburuemas2.com/contents/files/fepizetizozufugudetamas.pdfIn PDF document text
- https://autoskola-scp.com/files/niwobu.pdfIn PDF document text
- http://xn--80aiddhbkcq5bcaz.xn--p1ai/upload/files/39115480046.pdfIn PDF document text
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/ha3ru512mpa4mdi0dse69n5ikg/nazonetitifurefemi.pdfIn PDF document text
- https://siemreaptraveltours.com/userfiles/file/52257673362.pdfIn PDF document text
- 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_off0000dfc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFC6 | 10520 bytes |
SHA-256: b9ee3dc964c46fc6df5f95df6965b1e4bbbccfe524437511e43e76f0a599571e |
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font_01_sfnt_off0000f7ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7EC | 18244 bytes |
SHA-256: 6783de1a7a5d9c9f81a4c3caf4f899a66890120791810140ef58d9efae0396a8 |
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font_02_sfnt_off000126f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126F8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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