MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a network of links, likely to distribute malicious content or conduct phishing. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://drafthe.ru/uplcv?utm_term=paranoid+delusions+definition PDF link annotation
- http://yhbinternational.com/userfiles/file/50128192667.pdfIn PDF document text
- http://sissonne.hu/editor_up/sivowikimunosubupibug.pdfIn PDF document text
- https://aluvioneschicamocha.sinecsas.com/ckfinder/userfiles/files/sagasojogijiritukunulexoj.pdfIn PDF document text
- http://zzfcw.com/file/fkimg/file/65391086442.pdfIn PDF document text
- http://dgone.kr/userfiles/file/20210906160826.pdfIn PDF document text
- https://888nv.ru/userfiles/file/8591069148.pdfIn PDF document text
- http://seoaudytor.pl/userfiles/file/lejajezawagotaf.pdfIn PDF document text
- http://mobilni-kadernictvi.cz/files/file/3171732614.pdfIn PDF document text
- http://aliguoriarchitetto.eu/userfiles/files/zekimifipuvu.pdfIn PDF document text
- https://aradmissions.com/ci/userfiles/files/4596075730.pdfIn PDF document text
- http://3dprofi.net/images/uploads/file/livujotoxipeve.pdfIn PDF document text
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161356014bc052---63298498618.pdfIn PDF document text
- http://przystaneknida.pl/data/aktualnosci_imgs/file/59445180005.pdfIn PDF document text
- http://komodovo.ru/upload_picture/fogugomepod.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132296ed0f53---85055602268.pdfIn PDF document text
- http://2015.letnifestiwal.pl/ckfinder/userfiles/files/pavafilimi.pdfIn PDF document text
- https://cqc-material.com/app/webroot/userfiles/files/dekapezeveja.pdfIn PDF document text
- http://amandatour.ru/js/ckfinder/userfiles/files/woxig.pdfIn PDF document text
- http://trieuduong.com/images/Download/wegavekakiwa.pdfIn PDF document text
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/161344e1728ba5---56843826912.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_off0000d2f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2F4 | 17840 bytes |
SHA-256: b3b22c631850c3ee469c38319d4dad3e4524b513c54ef7cf53ea3748efe0b201 |
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font_01_sfnt_off00010050.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10050 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011867.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11867 | 10448 bytes |
SHA-256: 75b805358e1e26ba6100a789fc6dd432e06d2003481b60d1086ff268440d7352 |
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