MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to external domains, many of which are associated with link farms on disposable hosting, suggesting a phishing or malware distribution scheme. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating the PDF's structure is designed to redirect users through multiple low-reputation sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 5
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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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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=calculus+early+transcendental+functions+6th+edition+pdf PDF link annotation
- http://www.shjkyq.com/up_files/FCK/file/12871590945.pdfIn PDF document text
- https://3eyamaichi.com/upload/ckfinder_temp/files/20210917055406.pdfIn PDF document text
- http://piemonteforyou.it/userfiles/file/xobuxubaruz.pdfIn PDF document text
- https://wheelmartthailand.com/image/upload/File/wujamujusefilawumapafujo.pdfIn PDF document text
- http://www.og2c.com/images/file/letuwe.pdfIn PDF document text
- https://torgradio.ru/new/files/file/rijoga.pdfIn PDF document text
- http://pumarecovery.com/userfiles/files/tajowebolepubaru.pdfIn PDF document text
- http://atomicattack.com/atomic/fckimages/file/65942752752.pdfIn PDF document text
- https://2b3la571ga-70p.com/contents/files/87376854165.pdfIn PDF document text
- http://hoangnampte.vn/quangbasanpham/app/webroot/upload/image/files/sobanotediwapasukawesefob.pdfIn PDF document text
- https://kaunas.cvzona.lt/resources/img/files/61642305834.pdfIn PDF document text
- http://bbfederico2.net/userfiles/file/pumexinivuvuzofazikam.pdfIn PDF document text
- http://bsa-billiard.by/images_from_html_editor/file/bagupakarex.pdfIn PDF document text
- http://baove24h.info/upload/files/bewowuwo.pdfIn PDF document text
- http://ankaser.com/userfiles/file/55554118580.pdfIn PDF document text
- https://infotechb2blite.com/bot/ckfinder/uf/files/58356394987.pdfIn PDF document text
- http://xy-interior.com/uploads/files/202109120323395071.pdfIn PDF document text
- https://gtselect.fr/ckfinder/userfiles/files/72915567661.pdfIn PDF document text
- http://automyjka.pl/automyjka.pl/userfiles/file/39428839811.pdfIn PDF document text
- http://namjapizza.com/app/webroot/files/xenuvijexidakomijepulew.pdfIn PDF document text
- http://aostavet.it/userfiles/files/52492881706.pdfIn PDF document text
- http://ubytovna-krumlov.cz/userfiles/file/ravexozobamuvi.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161361d513d94f---70654268973.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e4547751e3---pipidowoluworigajuwidife.pdfIn PDF document text
- http://liveranigioielli.it/userfiles/files/52699549157.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_off0000b384.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB384 | 11132 bytes |
SHA-256: 53e4d17026ba9c294da39a53ff1ded50578edabfb248b5ce3df7916df842a3a6 |
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font_01_sfnt_off0000cd7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD7C | 15816 bytes |
SHA-256: afd394abe9a851c9ca91142c234fd2dafe8ff3ef4d648b81417d48510e2fcdd7 |
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font_02_sfnt_off0000f5f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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