MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, with a high-confidence heuristic identifying it as a link farm hosted on disposable domains. One link, in particular, points to a suspicious URL that is likely intended to host a malicious payload or facilitate phishing. The ClamAV detection and ML classifier further support its malicious nature, indicating it's a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9915
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://crewmak.ru/uplcv?utm_term=doppler+effect+equation+wavelength PDF link annotation
- https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613075c5479f2---75372482491.pdfIn PDF document text
- https://sogelec-eng.com/files/ckfinder/files/44534403583.pdfIn PDF document text
- https://innovaciones-plasticas.com/imagenes_cont/sitio/documentos/zagunuwememitozozive.pdfIn PDF document text
- http://uchid.com/uploads/file/lasem.pdfIn PDF document text
- http://abcbyspu.net/ckfinder/images_store/files/romevoroketubabogix.pdfIn PDF document text
- http://pet.nfe.go.th/m_site/ckfinder/userfiles/files/vowizedexijinofizoj.pdfIn PDF document text
- http://metafelix.it/userfiles/files/31807490956.pdfIn PDF document text
- http://inphilong.com/upload/files/wenepusisemedowot.pdfIn PDF document text
- https://giriconsultancy.com/content_files/files/97259726889.pdfIn PDF document text
- https://skvely-kup.cz/files/file/95757275934.pdfIn PDF document text
- https://aymsoft.us/aym_image/files/bajatoxazukadipagadaxa.pdfIn PDF document text
- http://home-plast.ru/foto/files/tagesufemudakurotu.pdfIn PDF document text
- http://ecole.ru/text/images/file/28726582363.pdfIn PDF document text
- http://kursverwaltung.fit-n-essen.ch/ckfinder/userfiles/files/61184877285.pdfIn PDF document text
- https://gbp.dropship-online.com/userfiles/files/30340687268.pdfIn PDF document text
- https://vidaleve.net/ckfinder/userfiles/files/sisejoviwekezekiraxilup.pdfIn PDF document text
- http://lishasurgical.in/ckeditor/ckfinder/userfiles/files/wifuzixofixuvase.pdfIn PDF document text
- http://dragonera.cn/admin/userfiles/file/97318420775.pdfIn PDF document text
- https://groupits.cm/uploads/fck/file/19166907728.pdfIn PDF document text
- https://ceccarbotosani.ro/userfiles/file/gamezefewuzitubomata.pdfIn PDF document text
- https://siriusdynamics.com/assets/uploads/files/ponazep.pdfIn PDF document text
- https://noursportevents.com/wheelmarine/userfiles/file/5939279985.pdfIn PDF document text
- http://lighthouse-connection.at/myPix/file/52660634920.pdfIn PDF document text
- https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/vaverukegif.pdfIn PDF document text
- https://pointwebhost.com/calisma2/files/uploads/kademi.pdfIn PDF document text
- http://tienhasteel.com/app/webroot/upload/files/53031503573.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_off0000b579.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB579 | 17988 bytes |
SHA-256: 63e8666f4beda7539259ce74f782eb3408df55375876d0db2e028c8e26af55d9 |
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font_01_sfnt_off0000e343.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE343 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fb5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB5A | 10992 bytes |
SHA-256: f13ccf4f849a7686f10bbada8e82ec77146a6741d8080161f8f04afb525cd160 |
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