MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV and an ML classifier as malicious, with heuristics indicating it functions as a link farm on disposable hosting. The embedded URLs, such as https://coretry.ru/uplcv?utm_term=dr+who+vampires+of+venice, likely serve as lures for phishing or to distribute further malware. No scripts were extracted, but the structure and URL patterns are consistent with malicious PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9893
Heuristics 5
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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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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://coretry.ru/uplcv?utm_term=dr+who+vampires+of+venice PDF link annotation
- http://yuhenganquan.com/userfiles/file/20210902092016_1204764231.pdfIn PDF document text
- https://aquarell.ro/userfiles/file/kolavolufodezurutumopodo.pdfIn PDF document text
- http://style4.allwebeasy.com/userfiles/files/20959579984.pdfIn PDF document text
- http://markjfox.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fazikezabepanas.pdfIn PDF document text
- http://instit.ac/ckfinder/userfiles/files/31062746535.pdfIn PDF document text
- https://www.meditech.cz/ckfinder/userfiles/files/11018851063.pdfIn PDF document text
- http://levakov132.ru/userfiles/file/4311313785.pdfIn PDF document text
- http://www.mostenpo.jp/userfiles/files/28978884202.pdfIn PDF document text
- http://nocleginaplus.pl/uploads/userfiles/files/najidewijaso.pdfIn PDF document text
- http://a-daily.jp/app/webroot/contents_img/files/sogera.pdfIn PDF document text
- https://giverny-bkk.com/upload/files/85152820184.pdfIn PDF document text
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/6c4c47edb46d3162ed567957d44ef721/gujevul.pdfIn PDF document text
- http://paykaaluminiya.ru/ckfinder/userfiles/files/ponijose.pdfIn PDF document text
- http://ttccid.com/userfiles/file/xavejawitud.pdfIn PDF document text
- http://menifee.hanasushichoice.com/uploads/files/zaxevis.pdfIn PDF document text
- http://mclarenquartz.in/ci/userfiles/files/15809539868.pdfIn PDF document text
- http://vinczeandlaszlo.com/upload/vutevokirafafegaworo.pdfIn PDF document text
- http://richardchong.com/userfiles/files/vuvat.pdfIn PDF document text
- https://nnt52.ru/userfiles/file/26315509172.pdfIn PDF document text
- https://b7b.reviewz.eu/app/webroot/files/userfiles/files/pifisotexu.pdfIn PDF document text
- http://maslatalaia.com/userfiles/file/nufilewub.pdfIn PDF document text
- https://tp-pos.com/uploads/image/files/73914583739.pdfIn PDF document text
- https://tlkingatlan.hu/kepek/other/file/noneduta.pdfIn PDF document text
- https://aalatour.com/basefile/b2caalatourcom/files/xosovovuvozob.pdfIn PDF document text
- https://roshnaai.com/ckfinder/userfiles/files/dofevuwos.pdfIn PDF document text
- http://ccadl.com/files/20210926071758.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_off0000b01f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB01F | 10752 bytes |
SHA-256: 4a5c96ff626ff2cb6ba0738737bc29ccb314a6e7afb99ed8f9439f7e5ef7069d |
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font_01_sfnt_off0000c8bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8BB | 14548 bytes |
SHA-256: 5d7f921ad7d55985dea86213f72864448ef34477d0fd9317e7e78454d064efa2 |
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font_02_sfnt_off0000ecf1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECF1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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