Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0a9b474c8a4c24b…

MALICIOUS

PDF

74.1 KB Created: 2021-09-19 12:00:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 8a9ec29da163df34ba10ec3e0792ccb1 SHA-1: ac541a89ca34bbd84ff46a054ac5f0fc1e3d34be SHA-256: f0a9b474c8a4c24b3e3f8d6a062eb4c3f2280b8ed7e36f0cb707687538273004
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://philabc.ru/uplcv?utm_term=meme+creator+apk+download PDF link annotation
    • http://agcslohian.com/userfiles/file/repifepukovo.pdfIn PDF document text
    • http://www.hermosabeachbungalows.com/userfiles/files/56119194360.pdfIn PDF document text
    • http://sherwoodonionfestival.com/ckfinder/userfiles/files/bojolasonumopiwadebifu.pdfIn PDF document text
    • https://nomortiga.com/contents/files/gamudexowesiselipajivige.pdfIn PDF document text
    • http://menifee.hanasushichoice.com/uploads/files/xetidejobe.pdfIn PDF document text
    • http://amandamaitland.com/images/file/kepenu.pdfIn PDF document text
    • https://salvamontbihor.ro/app/webroot/files/userfiles/files/79193446202.pdfIn PDF document text
    • http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/11001499159.pdfIn PDF document text
    • http://goldartline.ua/userfiles/file/mebiridasuxofi.pdfIn PDF document text
    • http://hanarotalk.com/userfiles/file///81989745685.pdfIn PDF document text
    • https://dogathermalhotel.com/resimler/files/dolosipekonix.pdfIn PDF document text
    • http://xn--oy2b9bv81anouola.com/upload/file/202109072210513959.pdfIn PDF document text
    • http://eqletstalk.com/uploads/files/202109131710425906.pdfIn PDF document text
    • https://ourcampuswindow.com/ckfinder/userfiles/files/jofixul.pdfIn PDF document text
    • https://clap-bas.com/userfiles/file/67082221307.pdfIn PDF document text
    • https://sentinels.ro/userfiles/file/94223414351.pdfIn PDF document text
    • http://chelseafoodmart.com/uploads/files/23064021779.pdfIn PDF document text
    • http://h-n-s.net/userfiles/file/28540651430.pdfIn PDF document text
    • https://gretajensen.com/ckfinder/userfiles/files/bupiparipeben.pdfIn PDF document text
    • https://tranthachcaodanang.com/uploads/image/files/sufamelesoxigapokegoz.pdfIn PDF document text
    • http://milwaukee.center/userfiles/file/30540463512.pdfIn PDF document text
    • http://ceramvetro.net/userfiles/file/16987246404.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1613d69bfd4a84---jafuva.pdfIn PDF document text
    • http://slhospital.com/upload/fckeditor/file/39765072230.pdfIn PDF document text
    • http://aumnat2car.com/ckfinder/core/connector/php/upload/files/40795592070.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_off0000bb8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB8E 10588 bytes
SHA-256: 844a0dde9fdbd0fbdca61604a06335ea758c5405b4e3f147f4fc9cc7a68b7552
font_01_sfnt_off0000d3ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3CA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000ebdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBDC 17880 bytes
SHA-256: 46d54ff96e7c6f51ee2ec3fa6aca49f83cc1824115f9d1da5216864c99e01929

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