Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d3a06888936ce17…

MALICIOUS

PDF

339.6 KB Created: 2025-05-24 14:03:01 +03:00 Authoring application: 376377000w000k000h000t000m000l000t000o000p000d000f000 0000000.00010002000.0006 (via GPL Ghostscript 9.53.3) First seen: 2026-06-11
MD5: 9bf455f247e17a645dca737848050241 SHA-1: cd3a43a9350f4b175bc19a0551a1843c062f07a3 SHA-256: 1d3a06888936ce17e78f63e8e4186847e4c793d2fde58b98da7e9337273de89b
94 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0184

Heuristics 6

  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://a-kamen.com/userfiles/file/4e5d9270-3be7-48ca-85cd-c9c7309f9685.pdf In PDF document text
    • https://us-ultimate.com/userfiles/files/vunorepedidut.pdfIn PDF document text
    • http://njbrilliantsolar.com/userfiles/file/411ba83e-7766-43d2-898d-0b60e6b058cc.pdfIn PDF document text
    • https://estetycznastomatologia.pl/file/files/pizimekakomun_fozifev.pdfIn PDF document text
    • http://hadjtaharsteel.com/app/webroot/js/kcfinder/upload/files/28964684209.pdfIn PDF document text
    • http://deurenhanger.nl/userfiles/file/6c0db86d-3658-41d3-b347-c6ae2e26bf26.pdfIn PDF document text
    • https://technomedia.sk/files/images/editorfile/11b43df2-9f84-42b5-9cce-7445fb50558b.pdfIn PDF document text
    • https://nikolettacukraszda.hu/images/fck/files/87770241067.pdfIn PDF document text
    • https://pilot-market.ru/new/files/file/03e8d255-cdf1-47e4-b098-8ae09c8296fd.pdfIn PDF document text
    • http://ihnpharmabiotech.com/userfiles/file/92796094511.pdfIn PDF document text
    • https://pracharuamchai.org/Uploads/file/lelikek_vowisa.pdfIn PDF document text
    • http://keweifuwu.com/userfiles/file/20250522082238_163304348.pdfIn PDF document text
    • http://bymodamobilya.com/admin/upload/files/93819412885.pdfIn PDF document text
    • http://jierimeichen.com/userfiles/file/20250522065151_934427164.pdfIn PDF document text
    • http://gzcaifeilai.com/ckfinder/userfiles/files/202505220640593989.pdfIn PDF document text
    • https://gasid.nurepikis.com/125781296082424469768239747673296130266139?givoloxelodovamupekinabo=zejupijazawovexibiditanawovufawijevaxanexukexiwasapomavemadivepigasovonixigikemavowajizofimobegezixinilunotirupunegekalibadaluneluvivaxitibigofagizogaxuzeloluwosulamorisotarazevipowulitezogupujimofukil&utm_term=faire+parti+conjugaison&kovixojujaditematarexuzajagafudopidulawaniwugavufabatirokurela=wisekidurubuxalafepezegabimolifutanarivupuwizimanibilodowifizofegoboxiduwadubedebumuritizemurexinutudokiwifujepiwulibupajerivujenevukepuvejujularelaki)/Type/ActionIn PDF document text
    • https://a-kamen.com/userfiles/file/4e5d9270-3be7-48ca-85cd-c9c7309f9685.pdf)/Type/ActionIn PDF document text
    • https://us-ultimate.com/userfiles/files/vunorepedidut.pdf)/Type/ActionIn PDF document text
    • http://njbrilliantsolar.com/userfiles/file/411ba83e-7766-43d2-898d-0b60e6b058cc.pdf)/Type/ActionIn PDF document text
    • https://estetycznastomatologia.pl/file/files/pizimekakomun_fozifev.pdf)/Type/ActionIn PDF document text
    • http://hadjtaharsteel.com/app/webroot/js/kcfinder/upload/files/28964684209.pdf)/Type/ActionIn PDF document text
    • http://deurenhanger.nl/userfiles/file/6c0db86d-3658-41d3-b347-c6ae2e26bf26.pdf)/Type/ActionIn PDF document text
    • https://technomedia.sk/files/images/editorfile/11b43df2-9f84-42b5-9cce-7445fb50558b.pdf)/Type/ActionIn PDF document text
    • https://nikolettacukraszda.hu/images/fck/files/87770241067.pdf)/Type/ActionIn PDF document text
    • https://pilot-market.ru/new/files/file/03e8d255-cdf1-47e4-b098-8ae09c8296fd.pdf)/Type/ActionIn PDF document text
    • http://ihnpharmabiotech.com/userfiles/file/92796094511.pdf)/Type/ActionIn PDF document text
    • https://pracharuamchai.org/Uploads/file/lelikek_vowisa.pdf)/Type/ActionIn PDF document text
    • http://keweifuwu.com/userfiles/file/20250522082238_163304348.pdf)/Type/ActionIn PDF document text
    • http://bymodamobilya.com/admin/upload/files/93819412885.pdf)/Type/ActionIn PDF document text
    • http://jierimeichen.com/userfiles/file/20250522065151_934427164.pdf)/Type/ActionIn PDF document text
    • http://gzcaifeilai.com/ckfinder/userfiles/files/202505220640593989.pdf)/Type/ActionIn PDF document text
    • https://gasid.nurepikis.com/125781296082424469768239747673296130266139?givoloxelodovamupekinabo=zejupijazawovexibiditanawovufawijevaxanexukexiwasapomavemadivepigasovonixigikemavowajizofimobegezixinilunotirupunegekalibadaluneluvivaxitibigofagizogaxuzeloluwosulamorisotarazevipowulitezogupujimofukil&utPDF link annotation
    • https://gasid.nurepikis.com/125781296082424469768239747673296130266139?givoloxelodovamupekinabo=zejupijazawovexibiditanawovufawijevaxanexukexiwasapomavemadivepigasovonixigikemavowajizofimobegezixinilunotirupunegekalibadaluneluvivaxitibigofagizogaxuzeloluwosulamorisotarazevipowulitezogupujimofukil&utm_term=faire+parti+conjugaison&kovixojujaditematarexuzajagafudopidulawaniwugavufabatirokurela=wisekidurubuxalafepezegabimolifutanarivupuwizimanibilodowifizofegoboxiduwadubedebumuritizemurexinutudokiwiPDF link annotation
    • https://gasid.nurepikis.com/125781296082424469768239747673296130266139?givoloxelodovamupekinabo=zejupijazawovexibiditanawovufawijevaxanexukexiwasapomavemadivepigasovonixigikemavowajizofimobegezixinilunotirupunegekalibadaluneluvivaxitibigofagizogaxuzeloluwosulamorisotarazevipowulitezogupujimofukil&utm_term=faire+parti+conjugaison&kovixojujaditematarexuzajagafudopidulawaniwugavufabatirokurela=wisekidurubuxalafepezegabimolifutanarivupuwizimanibilodowifizofegoboxiduwadubedebumuritizemurexinutudokiwifujepiwulibupajerivujenevukepuvejujularelakiIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/iX/1.0/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://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00051942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51942 2012 bytes
SHA-256: 616fa388bc7d6cce93ef32a7bfbbfbc184e2826580cffd2d2c697457c9bdcf86
font_01_sfnt_off000520e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x520E4 11092 bytes
SHA-256: b8ef7de065a83e872448cdf9087ecb8026d20edccd7dbf09cc39a8c6c6d9752f

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