MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the structure and URL patterns are indicative of a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://allytemp.ru/uplcv?utm_term=brain+teasers+for+high+school+students+worksheets PDF link annotation
- http://xn----itbbfrdrdbd4bgy6gi.xn--p1ai/webroot/files/files/72406050888.pdfIn PDF document text
- http://wjvanderheidedienstverlening.nl/uploads/file/5561759321.pdfIn PDF document text
- http://markone-tools.com/upload/files/tibukimugerojumema.pdfIn PDF document text
- https://cambodiaangkorhomestay.com/userfiles/file/38387127234.pdfIn PDF document text
- http://cosmoscm.com/contents/files/13254759145.pdfIn PDF document text
- http://mazurubezpieczenia.pl/zdjecia/fck/file/pupemenozuwewedorinedozuj.pdfIn PDF document text
- http://www.andreapondika.cz/file/16362972144.pdfIn PDF document text
- https://speculatio.in/ci/userfiles/files/sezak.pdfIn PDF document text
- http://notar-frings.de/userfiles/file/36070752339.pdfIn PDF document text
- https://kimcert.net/E/file/51965564184.pdfIn PDF document text
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138c884e3e25---48683374196.pdfIn PDF document text
- http://cloverdiamond.com/file/vuwinirasewupuzuzivi.pdfIn PDF document text
- http://oishisushigd.com/uploads/files/zisuborevonuz.pdfIn PDF document text
- https://equantumconsulting.com/files/files/5472515533.pdfIn PDF document text
- http://shortguycentral.com/ck_uploads/files/13722582618.pdfIn PDF document text
- http://clinton.abwingsmd.com/uploads/files/vepoxelafuxi.pdfIn PDF document text
- http://anpharma.net/upload/files/vobemerafaduwipefotabin.pdfIn PDF document text
- http://ichieh.tw/uploads/files/202109032328302730.pdfIn PDF document text
- https://bdprescription.com/ci/userfiles/files/xagaligenenabelatuvofonu.pdfIn PDF document text
- https://nezrenweb.com/calisma2/files/uploads/kixax.pdfIn PDF document text
- https://fratellifurloni.it/file/vojivebodaxakodorebos.pdfIn PDF document text
- http://dok-vo.ru/userfiles/file/29012177841.pdfIn PDF document text
- http://safarang.com/basefile/files/67498158089.pdfIn PDF document text
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/8f006296a198fdf0f743011c3ddee74e/nelujisix.pdfIn PDF document text
- http://suamayin.biz/userfiles/file/dumatiminizogozotetosod.pdfIn PDF document text
- http://kasaitogo.com/uploads/files/1925947045.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_off0000d304.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD304 | 11088 bytes |
SHA-256: 52e8577035766ff04b56c03e27710bc33d61c1bf43c77238a61fdd642d818327 |
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font_01_sfnt_off0000ecac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECAC | 18200 bytes |
SHA-256: 4b1687b0b565624de4be7fe9e9366ee56eb06ace0401c11b09d70e3bd79c4b7a |
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font_02_sfnt_off00011bf9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BF9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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