MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. The presence of numerous embedded URLs, many pointing to disposable hosting and employing UTM parameters, strongly suggests a phishing or link-farming attack pattern. The document body is unreadable, but the heuristics and URLs indicate the primary function is to redirect users to external, potentially malicious, sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://krisoc.ru/uplcv?utm_term=how+to+draw+manga+arms PDF link annotation
- https://aksukartela.com/images_upload/files/29980192998.pdfIn PDF document text
- http://lab4050.com/upload/editor/file/jukemukuwagumeg.pdfIn PDF document text
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147a4eceff65---dogikojonijesebedalaz.pdfIn PDF document text
- http://amblesidewindermere.ca/fckuploads/images/file/rivejewe.pdfIn PDF document text
- http://srihemkuntschoolint.com/slbdavbatala/userfiles/file/sabuwexuwozosovalujibil.pdfIn PDF document text
- http://gidaero.com/upload/fckeditor/file/8633701273.pdfIn PDF document text
- http://gaongonmaiphuong.vn/webroot/img/files/rivered.pdfIn PDF document text
- http://www.koeru.eu/failid/file/35827069443.pdfIn PDF document text
- http://e-junghan.com/userData/board/file/60348434942.pdfIn PDF document text
- https://managedentalclinic.com/ckfinder/userfiles/files/8542733869.pdfIn PDF document text
- http://pokrowce-ochronne.pl/Upload/file/zonerilul.pdfIn PDF document text
- http://letnipohar.cz/upload/file/59793140418.pdfIn PDF document text
- https://pankajplast.com/ckfinder/userfiles/files/6646513879.pdfIn PDF document text
- https://hurghadalife.net/userfiles/files/zidefebukopuluf.pdfIn PDF document text
- http://intranet.uts.edu.co/portal/app/ckfinder/userfiles/files/gemepesululimabamuni.pdfIn PDF document text
- https://mysilo.com/upload/ckfinder/files/guwojaxiz.pdfIn PDF document text
- https://landtop.com/filespath/files/20210904020753.pdfIn PDF document text
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d06c2e35a7---32208952966.pdfIn PDF document text
- https://homestayhoian.vn/uploads/image/files/12640737887.pdfIn PDF document text
- http://veitali.com/upload/files/32107606901.pdfIn PDF document text
- http://rogersdesignhouse.com/uploads/files/xesaloripuzuj.pdfIn PDF document text
- http://cityclick.it/userfiles/files/dozejebenufamuxudabupit.pdfIn PDF document text
- https://stl-log.com/htdocs/cljr/data/files/davanugemumowavofi.pdfIn PDF document text
- http://aldobini.it/userfiles/files/puxebikesumenujimutigi.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_off0000e703.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE703 | 10396 bytes |
SHA-256: 253f0296c035f30ff1ae5b0a166ae03374cbe984891f8e4e70482358528c1134 |
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font_01_sfnt_off0000fe4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE4A | 19952 bytes |
SHA-256: f2d1954b7c29ba83b55de9ad6e17b4286c809537117d6173c82f60e0e064f858 |
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font_02_sfnt_off0001322c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1322C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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