MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains numerous embedded links, many pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or link-farming campaign. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a phishing lure, likely intended to lead users to malicious websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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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://synerhu.ru/uplcv?utm_term=how+to+download+android+emulator PDF link annotation
- http://takramaipai.com/mypicture/file/zukegarubudu.pdfIn PDF document text
- https://cambodiaangkorhomestay.com/userfiles/file/79794768769.pdfIn PDF document text
- http://genbreedpublisher.com/files/upfiles/file/dapinefudi.pdfIn PDF document text
- https://szallas-karpatalja.hu/upload/fenuzajuviwasizenorivev.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/8a0e14fbbf9e5c944aca7335f5dd50a0/13515757075.pdfIn PDF document text
- https://mariapolis.es/ckfinder/userfiles/files/29307232194.pdfIn PDF document text
- http://npcbalkan.net/ckeditor/ckfinder/userfiles/files/nelakabo.pdfIn PDF document text
- http://chekeeh.ir/basefile/chekeehir/files/59079919561.pdfIn PDF document text
- https://bnbtravels.com/ckfinder/userfiles/files/wesufoduve.pdfIn PDF document text
- https://poganyvolgyi.hu/userfiles/file/dodozudojinewivujakasow.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613d1a9ae0cf8---65468491033.pdfIn PDF document text
- http://karmakonnect.org/DrumiBhatt/karmakonnect.org/Final/ckeditorimage/files/sifetokafoxaxukewaforub.pdfIn PDF document text
- http://xn--365-pn7mwb654m2qn.com/ckupload/files/9046348102.pdfIn PDF document text
- http://sochisushi.nl/survey/userfiles/files/kuvepenisowezu.pdfIn PDF document text
- https://www.auto-ecole-rive-droite.fr/ckfinder/userfiles/files/58154933304.pdfIn PDF document text
- http://pujcovnanaradi-tvarozna.cz/userfiles/files/fowiwipaloforamoguvuleba.pdfIn PDF document text
- http://retrofotr.cz/files/file/82447611840.pdfIn PDF document text
- https://www.corpeverest.com/ckfinder/userfiles/files/govole.pdfIn PDF document text
- http://80tner.friend-match.com/upload/files/9178528507.pdfIn PDF document text
- http://aiswaryamatrimonials.com/fck_uploads/file/vavenelovamu.pdfIn PDF document text
- http://le-nora.com/userfiles/file/vapigow.pdfIn PDF document text
- http://nbmounts.com/userfiles/file/1630536776.pdfIn PDF document text
- http://doanandieuduong295doson.vn/namthuan/images/news/files/24265614787.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c76ebb7fb3---pakugolixunidojamela.pdfIn PDF document text
- http://landonintergroup.com/ckfinder/userfiles/files/61188775058.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_off0000b50a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB50A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD1C | 14148 bytes |
SHA-256: 0929b5c9a22ec2a8ed795150d302ee9df8d3b73e2b79ed8d8649b3b64117aa00 |
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font_02_sfnt_off0000f05f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF05F | 10416 bytes |
SHA-256: 4a78e8d9a2a0e72943bf56ce9d0f067592d48e183f42f796267c19d260234f2e |
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