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 embedded URLs, many pointing to disposable hosting and using UTM parameters, strongly suggests a phishing or malware distribution campaign. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with techniques used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://queure.ru/uplcv?utm_term=chapter+10+anatomy+and+physiology+test PDF link annotation
- http://abwvictory.com/uploads/files/26257753833.pdfIn PDF document text
- http://bolt-go77.com/fckeditor/userfiles/file/tizeralanutesanufale.pdfIn PDF document text
- http://praxis-greve-polley.de/web/editor/files/fowuzirod.pdfIn PDF document text
- https://healthtecindia.com/userfiles/file/81369124088.pdfIn PDF document text
- http://xn--brneneskontor-landsforening-b0c.dk/userfiles/file/dolat.pdfIn PDF document text
- http://andrelandberg.com/userfiles/file/86043153681.pdfIn PDF document text
- https://prtl.pl/userfiles/file/23844282184.pdfIn PDF document text
- http://countryclaim.cz/userfiles/file/penasubomokunugubipigasu.pdfIn PDF document text
- http://health-bridge.in/upload/file/levog.pdfIn PDF document text
- http://ainut.fi/userfiles/file/gusefubibefonizuf.pdfIn PDF document text
- http://studioiulianella.it/userfiles/files/57382411425.pdfIn PDF document text
- http://9275522-travel.com/userfiles/file/vejemavubujozidanipufoku.pdfIn PDF document text
- http://munnarteabungalows.com/userfiles/file/2727129708.pdfIn PDF document text
- http://dekoblickfang.de/userfiles/file/96314220631.pdfIn PDF document text
- https://www.antoniopopolizio.it/ckfinder/userfiles/files/nadutilekuxixuk.pdfIn PDF document text
- http://kraski-chernila.ru/resources/file/56207977066.pdfIn PDF document text
- http://pastadimatteo.com/ckfinder/userfiles/files/dojoxisakogado.pdfIn PDF document text
- http://www.sictombbi.fr/ckfinder/userfiles/files/mubavopumudarurugemek.pdfIn PDF document text
- https://keralatemples.info/ckfinder/userfiles/files/14718661150.pdfIn PDF document text
- http://sk4education.com/ckfinder/userfiles/files/12341863829.pdfIn PDF document text
- http://hdg-gmuend.de/userfiles/files/6593479880.pdfIn PDF document text
- http://netichikawaya.com/userfiles/file/81782815696.pdfIn PDF document text
- https://ptkas.com/kingkong/userfiles/files/10602710790.pdfIn PDF document text
- https://sunnyrosesschool.com/userfiles/file/61407466210.pdfIn PDF document text
- https://rt9.rspo.org/ckfinder/userfiles/files/46377834601.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_off0000d0fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0FE | 19700 bytes |
SHA-256: dfd9116cbbfaafa44ca0d7e8a15e6164f243aa7a43c76444805969e3248ffe14 |
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font_01_sfnt_off0001044e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1044E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011c65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C65 | 11160 bytes |
SHA-256: 69e3f9e1d2b82d613c37ce496074b98d3e9244a4793092fdc3c00bb4ce6d3018 |
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