Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa83ad412aa83ecb…

MALICIOUS

PDF

69.7 KB Created: 2021-09-25 10:07:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: a5207851595a72be27908a2b848a8e2c SHA-1: 95fdd4562f54f32097021da1708e6c8d97388edc SHA-256: aa83ad412aa83ecb16ad00ec4eeaa579f16eaa9f706c4e8486b678e75e1c55c3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • 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://pixomot.ru/uplcv?utm_term=porn+games+for+cellphone PDF link annotation
    • http://energyexcess.com/userfiles/file/tasufarexevonazapavi.pdfIn PDF document text
    • http://hk888.edo2008.com/com/comimg/file/20210911_034454_114.pdfIn PDF document text
    • http://skidubravy.sk/spravca/ckfinder/userfiles/files/povop.pdfIn PDF document text
    • http://ilturismoinitalia.it/userfiles/files/51862176820.pdfIn PDF document text
    • http://www.saaegfpolis.org.br/ckfinder/userfiles/files/ximedajesovalafusezem.pdfIn PDF document text
    • http://www.gesas.it/media/mailinglist/file/26183087042.pdfIn PDF document text
    • http://artiguardia.pl/userfiles/file/87994730532.pdfIn PDF document text
    • http://lamekatus.com/uploads/ckeditor/files/mivimuxubasomiwuso.pdfIn PDF document text
    • http://wine-paraphernalia.com/files/winep/_repo/file/vafev.pdfIn PDF document text
    • https://lyna-garage.com/htdocs/cljr/data/files/xajedopulogezebiv.pdfIn PDF document text
    • http://bhhangkhong.com/upload/images/files/42643859276.pdfIn PDF document text
    • http://historico.uts.edu.co/portal/app/ckfinder/userfiles/files/85557883026.pdfIn PDF document text
    • http://asr-net.ru/uploads/files/33527127082.pdfIn PDF document text
    • http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/jajidunevorinezofavoved.pdfIn PDF document text
    • http://polipadel.com/userfiles/file/darovasubepasa.pdfIn PDF document text
    • https://egokituz.eus/files/galeria/files/80854784030.pdfIn PDF document text
    • http://nofatrans-int.com/userfiles/file/xomovofuluwuduzasoxuso.pdfIn PDF document text
    • http://keyday.ru/files/files/xesefosuripubewux.pdfIn PDF document text
    • http://montpellier-businessplan.eu/mbp/upload/images/images/upload/ckfinder/87029194808.pdfIn PDF document text
    • http://15449010.com/FileData/ckfinder/files/20210925_D02B644269684971.pdfIn PDF document text
    • http://kencert.vn/uploads/image/files/32062034838.pdfIn PDF document text
    • http://lifeline-sports.com/files/file/23639191885.pdfIn PDF document text
    • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/161443211921fa---55015490661.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.

FilenameKindSourceSize
font_00_sfnt_off0000addc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADDC 10740 bytes
SHA-256: 1d74bfa06741e98596e4db117bc1f56785bd8f75261f10b29acc0c7396e04785
font_01_sfnt_off0000c665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC665 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000de77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE77 16380 bytes
SHA-256: f30dd73925213bc5b97a1d07cddc7826c1d7137b81c2c2e4c233d9f6dd69bbce

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