MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains multiple links to external PDFs hosted on various domains, suggesting it acts as a downloader or redirector. The presence of a 'download button' heuristic further supports the attack pattern of luring users into downloading a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://alarm.pl/userfiles/file/mufozifuxumu.pdf In PDF document text
- https://mebelihome.ru/upload_picture/digimimoto.pdfIn PDF document text
- http://ramenzoni.eu/userfiles/files/56231721836.pdfIn PDF document text
- http://vietdubai.com/userfiles/file/vugir.pdfIn PDF document text
- https://bi-kiesabbau.de/cmsimple/images/file/rotikebafomufekivubim.pdfIn PDF document text
- https://tw-itemaos.com/ckfinder/userfiles/files/judarujaruno.pdfIn PDF document text
- http://redigonda.it/userfiles/files/gupinokugomedavab.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139f10ed401b---25473753872.pdfIn PDF document text
- http://szyoujin.com/UploadFile/file/20210909183316054.pdfIn PDF document text
- https://2ruoteexpo.it/ckfinder/userfiles/files/98606283060.pdfIn PDF document text
- http://escuelasfutbol8.com/docs/files/werovopezusevobero.pdfIn PDF document text
- http://refinerlink.com/userfiles/file/21682345517.pdfIn PDF document text
- https://boucherienabli.com/uploads/FCK_files/file/kemaniwomu.pdfIn PDF document text
- https://riwg.in/userfiles/file/5061684155.pdfIn PDF document text
- https://o2opr.co/userfiles/files/beragavokipixerigitak.pdfIn PDF document text
- http://eyela.kr/uploadfile/fckeditor/file/49510962960.pdfIn PDF document text
- http://homeloanz.net/images/e/file/wosibizogexopupijuzul.pdfIn PDF document text
- http://ambulatorioveterinariocigliano.com/userfiles/files/80115878352.pdfIn PDF document text
- https://albertoangel.sinecsas.com/ckfinder/userfiles/files/bodafinewabosofetoledot.pdfIn PDF document text
- http://veterinariacasettamattei.it/userfiles/files/11757535033.pdfIn PDF document text
- http://adec-interiors.net/Uploads/file/96337659308.pdfIn PDF document text
- http://metallpress.info/files/kuwanomafadet.pdfIn PDF document text
- http://shortguycentral.com/ck_uploads/files/dazelumatimirufuw.pdfIn PDF document text
- http://aapltd.net/userfiles/file/togirarabasavosubepozaf.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=madout+car+parking+mod+apkPDF 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_off0000d235.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD235 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ea4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA4C | 10696 bytes |
SHA-256: ea41c85ad2b5f31add46dd48731ee57134d6dc5143cb22e8a60e718ce575d029 |
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font_02_sfnt_off00010293.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10293 | 19772 bytes |
SHA-256: 24a10f7946c30f5c258a72271326ded9104e97f2e097e03b1e1a6229c39a6d1b |
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