Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2bae82abf27659…

MALICIOUS

PDF

82.6 KB Created: 2021-09-21 04:44:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 0bc562d56697bcff83370435c751212d SHA-1: dae18fb9e7f7668ad3f3f9f2f9e6440646254153 SHA-256: af2bae82abf27659d2c88cb73205e5f221a9689c2a195a1038dcc889b0f974e3
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://coretry.ru/uplcv?utm_term=minecraft+pe+lite+apk PDF link annotation
    • http://zit-tech.com/userfiles/files/18562260421.pdfIn PDF document text
    • https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/e8eaa0b08a5a9553c81a54959785c156/66822823085.pdfIn PDF document text
    • https://agatanorek.com/files/file/zowemobebaxoz.pdfIn PDF document text
    • http://castrolmintabolt.hu/images/upload/file/72493189328.pdfIn PDF document text
    • https://thic.muki001.com/plugin/ce1/ckfinder/userfiles/files/borosotir.pdfIn PDF document text
    • http://chukguwang.com/files/fckeditor/file/4771078216.pdfIn PDF document text
    • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/xonep.pdfIn PDF document text
    • http://unseenadventure.com/userfiles/file/girutokonuxet.pdfIn PDF document text
    • https://ooo-kenk.ru/userfiles/file/79444038917.pdfIn PDF document text
    • http://dj-maily.com/uploads/pages/files/napiwufuf.pdfIn PDF document text
    • https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/94389395963.pdfIn PDF document text
    • https://macauroommate.com/ckfinder/userfiles/files/revarokawawinogakamejigef.pdfIn PDF document text
    • http://batistar.fr/userfiles/file/27214836855.pdfIn PDF document text
    • https://orsam.org.tr/paketler/ckfinder/dosyalar/files/zomewo.pdfIn PDF document text
    • https://truongthanhco.vn/webroot/img/files/28618842148.pdfIn PDF document text
    • http://zhhyhb.com/uploadfiles/files/talek.pdfIn PDF document text
    • https://braindevelopmentmaps-org.neurondevelopment.org/userfiles/files/22776824522.pdfIn PDF document text
    • http://gardena.crazyrockinsushi.com/uploads/files/numanutes.pdfIn PDF document text
    • https://rpaxis.net/userfiles/file/jumaxi.pdfIn PDF document text
    • http://www.gieskestukadoors.nl/ckfinder/files/files/38854401081.pdfIn PDF document text
    • https://pirkitpadangas.lt/ckfinder/userfiles/files/56291911272.pdfIn PDF document text
    • http://jfe.hk/userfiles/6860912246.pdfIn PDF document text
    • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614165ebac8e3---neforate.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_off0000e031.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE031 10272 bytes
SHA-256: afe45fc4d2509faeb1bf8c5e8560597d84b7239431503e57fd68e14c16f05b6e
font_01_sfnt_off0000f766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF766 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F78 17656 bytes
SHA-256: d6b24894405db8e11a354dad09080ed86828f15facb0064aabe1945359b02bf1