MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to external websites, many of which are hosted on disposable domains and appear to be part of a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically phishing or malware distribution. While no scripts were directly extracted, the heuristic 'PDF_RANDOM_URL_LINK' suggests the embedded links are designed to lead users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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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://medvor.ru/uplcv?utm_term=do+you+need+antivirus+on+android+phone PDF link annotation
- https://vieclamday.com/userfiles/file/daxemepaveporop.pdfIn PDF document text
- http://kolkandkolkdesign.com/site/data/ws/files/38333378633.pdfIn PDF document text
- http://goforthegreengolfpools.com/userfiles/file/fetalajasoduf.pdfIn PDF document text
- http://eachfun.com/ckfinder/userfiles/site_eachfun_com/files/kanuwetinujosadupakegatog.pdfIn PDF document text
- http://vektor28.ru/userfiles/file/44779367613.pdfIn PDF document text
- https://fivetc.net/uploads/files/24768535766.pdfIn PDF document text
- http://fazendasaojudastadeu.net/fotosempresa/files/tadakipusotipiz.pdfIn PDF document text
- http://hotelbasantresidency.com/uploads/botavubafejubenejip.pdfIn PDF document text
- http://loaamtran.com/files/usersfiles/files/lekozekagiromoxilal.pdfIn PDF document text
- http://woori-tour.kr/FileData/ckfinder/files/20210928_78B5149D88E400AC.pdfIn PDF document text
- https://stalbeckers.nl/userfiles/image/file/vitujopo.pdfIn PDF document text
- http://sictombbi.fr/ckfinder/userfiles/files/37242017254.pdfIn PDF document text
- http://madurastones.com/userfiles/file/29502139892.pdfIn PDF document text
- http://toptoptraining.ru/img/upload/file/fuxinufomisiselusemaki.pdfIn PDF document text
- http://engroupe.ca/aym_image/files/tadinezaduba.pdfIn PDF document text
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/161425405e10b8---fobaruxurefegolurubofepi.pdfIn PDF document text
- http://csc0451.com/userfiles/file/20210927132534_bap6nf.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/53728433890.pdfIn PDF document text
- https://cantellodetersiviprofessionali.it/uploads/file/42208933492.pdfIn PDF document text
- http://jedzenie365.pl/ckfinder/userfiles/files/midijaw.pdfIn PDF document text
- https://stephankeppel.com/userfiles/file/gelune.pdfIn PDF document text
- http://hb-hospital.com/file_upload/fck_upfile/file/8124918696.pdfIn PDF document text
- https://ntc-container.com/upload/files/seredezidaxifirakipage.pdfIn PDF document text
- http://appli-veolia.net/ckfinder/userfiles/files/rajolavofoxikifakevano.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_off0000b1dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1DD | 14440 bytes |
SHA-256: 1243954b0c7fa6678eeb0f0c318ef8d0b85629923de90eed2e827d7d3633bf75 |
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font_01_sfnt_off0000d627.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD627 | 10724 bytes |
SHA-256: 74a0a0211bae3e86191181a407480a47aacb7d50770d47b6d8a8ff5fc9cffc8e |
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font_02_sfnt_off0000eecd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEECD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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