Malicious PDF — malware analysis report

Static analysis result for SHA-256 82a4a720309e1d33…

MALICIOUS

PDF

150.6 KB Created: 2025-11-29 02:30:27 +02:00 Authoring application: 376377000w000k000h000t000m000l000t000o000p000d000f000 0000000.00010002000.0006 (via GPL Ghostscript 9.53.3) First seen: 2026-06-11
MD5: b3a8b0fa7d9304b83a99bc89ac6a7066 SHA-1: bfa0d5ba5806abc0ef1a64f851832f2256c07b4d SHA-256: 82a4a720309e1d334e092cda25a2c8664ae860b5eb7cd8138a1c9a6cf0c4e2b3
86 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0013

Heuristics 5

  • 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.
  • 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://globalcircle.club/userfiles/file/ziwizewafepija-jasudotixalebis-bodoselu-gadedalex-mumigibisas.pdf In PDF document text
    • http://zdk-engels.ru/upload3/files/eea15e69-4324-4af8-9334-0f7be2b7a00b.pdfIn PDF document text
    • http://kwartetproforma.com/userfiles/file/didozexi-nopeb-gixawazut.pdfIn PDF document text
    • http://mastersnab.pro/upload/files/03b47a15-3806-4d35-86d8-08f4bec59245.pdfIn PDF document text
    • http://mssuchdol.cz/files/toxebijuzarowub-falemume-dugijaso.pdfIn PDF document text
    • https://vugexexuvazow.tugoduzak.com/856079253996207231631596207904044156360176?nimakixabajulewekuridevisavenelivabufaxudomewiropulekumejewetudivifidikavamibugolemetamana=pebazavugikerewonipijusalegugufetatumivexusirokurimujarejukiwosajutakezosomekulututosefapumibubutepoburatiludepewuwolerabazokedobixixevumejegerelavizitelidagonivabaxosepiwojadepofejubawipadivafuwalisaze&utm_term=pokemon+mega+evolution+gba+download+pt-br&zewidifuworajasekiwesivudikilazeliweduwozajageredegu=bowazipiwotegisorijiwadibasoxaloxekajotisubonezozulekologaxewaxipaxolituvifetowekuvivuvumiviziripomozorolalixidenopokabovifopurafexotusiga)/Type/ActionIn PDF document text
    • https://globalcircle.club/userfiles/file/ziwizewafepija-jasudotixalebis-bodoselu-gadedalex-mumigibisas.pdf)/Type/ActionIn PDF document text
    • http://zdk-engels.ru/upload3/files/eea15e69-4324-4af8-9334-0f7be2b7a00b.pdf)/Type/ActionIn PDF document text
    • http://kwartetproforma.com/userfiles/file/didozexi-nopeb-gixawazut.pdf)/Type/ActionIn PDF document text
    • http://mastersnab.pro/upload/files/03b47a15-3806-4d35-86d8-08f4bec59245.pdf)/Type/ActionIn PDF document text
    • http://mssuchdol.cz/files/toxebijuzarowub-falemume-dugijaso.pdf)/Type/ActionIn PDF document text
    • https://vugexexuvazow.tugoduzak.com/856079253996207231631596207904044156360176?nimakixabajulewekuridevisavenelivabufaxudomewiropulekumejewetudivifidikavamibugolemetamana=pebazavugikerewonipijusalegugufetatumivexusirokurimujarejukiwosajutakezosomekulututosefapumibubutepoburatiludepewuwolerabazokedobiPDF link annotation
    • https://vugexexuvazow.tugoduzak.com/856079253996207231631596207904044156360176?nimakixabajulewekuridevisavenelivabufaxudomewiropulekumejewetudivifidikavamibugolemetamana=pebazavugikerewonipijusalegugufetatumivexusirokurimujarejukiwosajutakezosomekulututosefapumibubutepoburatiludepewuwolerabazokedobixixevumejegerelavizitelidagonivabaxosepiwojadepofejubawipadivafuwalisaze&utm_term=pokemon+mega+evolution+gba+download+pt-br&zewidifuworajasekiwesivudikilazeliweduwozajageredegu=bowazipiwotegisorijiwadPDF link annotation
    • https://vugexexuvazow.tugoduzak.com/856079253996207231631596207904044156360176?nimakixabajulewekuridevisavenelivabufaxudomewiropulekumejewetudivifidikavamibugolemetamana=pebazavugikerewonipijusalegugufetatumivexusirokurimujarejukiwosajutakezosomekulututosefapumibubutepoburatiludepewuwolerabazokedobixixevumejegerelavizitelidagonivabaxosepiwojadepofejubawipadivafuwalisaze&utm_term=pokemon+mega+evolution+gba+download+pt-br&zewidifuworajasekiwesivudikilazeliweduwozajageredegu=bowazipiwotegisorijiwadibasoxaloxekajotisubonezozulekologaxewaxipaxolituvifetowekuvivuvumiviziripomozorolalixidenopokabovifopurafexotusigaIn 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00022ffb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22FFB 8684 bytes
SHA-256: f908b66a9f528c12139250d60437e6d1ea748949adad90f7543cbc55102c2997

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