MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded links, with many pointing to disposable domains, suggesting a link farm or phishing lure. While no scripts were explicitly extracted, the PDF structure and embedded links are consistent with techniques used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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 http://geobigoni.it/userfiles/files/45878560926.pdf In PDF document text
- http://rszm88.com/upfolder/e/files/20210905095924.pdfIn PDF document text
- http://balmybnb.com/t/tutorfirm/uploads/ck/files/65140366145.pdfIn PDF document text
- http://viquadro.com/userfiles/files/xinalebaterozorar.pdfIn PDF document text
- https://anglarill.net/userfiles/file/9414911662.pdfIn PDF document text
- http://svb-volleyball.de/userfiles/file/96343302750.pdfIn PDF document text
- http://studiofagiani.eu/userfiles/files/45064855244.pdfIn PDF document text
- https://hearing-outlet.com/uploads/files/202109171822265101.pdfIn PDF document text
- http://osstemcardiotec.com/files/fckeditor/file/80128216661463a75d5821.pdfIn PDF document text
- http://www.slenderclub.cz/ckfinder/userfiles/files/rulifolod.pdfIn PDF document text
- http://world-spa-resorts.com/dok/57718272469.pdfIn PDF document text
- http://maychebiengoduykhuong.com/media/ftp/file/28278679311.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4e89eca18---ganoviwubejatamagopiro.pdfIn PDF document text
- https://yantrasearch.com/ckfinder/userfiles/files/pesererizibozakit.pdfIn PDF document text
- http://tiquital.com/documentos/file/64680200383.pdfIn PDF document text
- http://talentfuturesservices.com/sharpinstitute/images/files/51660394639.pdfIn PDF document text
- https://tanthueviet.vn/img_data/files/41111043771.pdfIn PDF document text
- http://www.petersonassoc.com/emailimages/file/48776437252.pdfIn PDF document text
- http://lambanghieuquangcaogiare.net/vietkiendo/upload/file/71110446134.pdfIn PDF document text
- https://pfollowers.com/ci/userfiles/files/65878390513.pdfIn PDF document text
- http://marcelponjee.nl/ponjeefiles/file/bejujuxenevesegaba.pdfIn PDF document text
- https://ppntassone.it/dati/upload/file/zelijoxo.pdfIn PDF document text
- http://eptesteplelek.com/uploads/file/bonapimokimagiv.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613635c1bc5db---23176875384.pdfIn PDF document text
- http://testsitehq.com/ckeditor-ckfinder-integration/uploads/files/gukiregasefiso.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=endothermic+and+exothermic+reactions+answer+keyPDF link annotation
- 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_off0000b036.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB036 | 14780 bytes |
SHA-256: 55f824883baeab91476889b4b4012e6a16882544845d467548872745cab457f2 |
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font_01_sfnt_off0000d522.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD522 | 10964 bytes |
SHA-256: 06bcdd8151684e82462d12a8b5a88dba6c6927b7ab1f1ef20eb76a09107d4360 |
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font_02_sfnt_off0000ee73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE73 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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