MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of numerous external URIs, many pointing to disposable hosting and employing UTM parameters, strongly suggests a phishing or link-farming operation. Although no scripts were explicitly extracted, the PDF structure and URI patterns are consistent with techniques used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://synerhu.ru/uplcv?utm_term=o+yinlar+android PDF link annotation
- https://soi.icami.mx/ckfinder/userfiles/files/sorutobevudukazujitajok.pdfIn PDF document text
- http://americandeliorder.com/uploads/files/ritegumeforawuxasag.pdfIn PDF document text
- http://pay2pay.net/upload/file/84997064374.pdfIn PDF document text
- http://kesherisrael.com/uploadEditor/files/gagibizid.pdfIn PDF document text
- http://jszl-rolls.com/filespath/files/20210912121159.pdfIn PDF document text
- https://qfse.co/images/uploaded_files/ckfinder/files/1632543590_b0b6c78acc.pdfIn PDF document text
- http://skupka54.ru/upload/m/taxamuluperuk.pdfIn PDF document text
- http://sbsinternationalschool.org/userfiles/file/kogug.pdfIn PDF document text
- http://manuale.aziendasulweb.it/userfiles/files/gilixatigetusizokiketapa.pdfIn PDF document text
- http://lamekatus.ee/uploads/ckeditor/files/17148595332.pdfIn PDF document text
- http://xn--42cfa4ewb0a0b3fwh.com/imageupload/files/97648679093.pdfIn PDF document text
- https://ms1oke.com/contents/files/34056534597.pdfIn PDF document text
- http://ozcetinler.com/userfiles/file/pafuzuzomoxovugabidub.pdfIn PDF document text
- https://partnyor.az/userfiles/file/50964468744.pdfIn PDF document text
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/161515628b82d9---zuzomugogidejuwumu.pdfIn PDF document text
- http://gjbbang.com/userData/board/file/videpakajelupapizajox.pdfIn PDF document text
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/52f21aa16b3cd015d5c9a2d594c33a23/93874584176.pdfIn PDF document text
- http://stagelight.pl/userfiles/files/winagudise.pdfIn PDF document text
- https://studiovizia.com/webroot/img/content/files/lofuvufojukibilojafezaf.pdfIn PDF document text
- https://retta-bg.com/userfiles/31215357172.pdfIn PDF document text
- http://castrolmintabolt.hu/images/upload/file/mokozadesaxoropif.pdfIn PDF document text
- http://gesundezellen.com/neu/userfiles/file/jopepivekunepeloruxez.pdfIn PDF document text
- http://luberoff.com/userfiles/file/53526728439.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_off0000b01c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB01C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c82e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC82E | 17440 bytes |
SHA-256: e5c2fecc1e2bc53279c2e1ec7cf3c9dd11de85f2d709d5379cd9f91de142c034 |
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font_02_sfnt_off0000f4c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4C8 | 9980 bytes |
SHA-256: ad352ea3fcc5c857b5397d6f48570c60f62297f49bbb00d0e9fd401d82b12bb0 |
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