Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bc2f271f8ea9bf…

MALICIOUS

PDF

99.4 KB Created: 2022-01-28 17:44:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 7649a297fe6f9fed02bdb7c172f81c18 SHA-1: 34347f62dc1317c2e9ae9dbaa1431a80fd0f7d5c SHA-256: 72bc2f271f8ea9bf3a7f86262fa05ed1231d34a31f377a7f0d018bfab8ad98e5
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9834

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.
  • 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://norin.co.za/XSRYdR1H?utm_term=angular+form+validation+after+blur PDF link annotation
    • http://edilgroupdigiovanni.it/userfiles/files/nemepegodof.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/h6c9imlr25i6bdd8c7oh65j1cb/gujamegajunebowavoduvam.pdfIn PDF document text
    • http://eoto.org/assets/kcfinder/upload/files/sakitarotizogera.pdfIn PDF document text
    • https://alfamar.travelshops.pl/userfiles/file/67124895262.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161a636f1ee597---jesigogusumukilixaj.pdfIn PDF document text
    • https://eurochen.com/UpFiles/WebEditorFiles/file/91203601341.pdfIn PDF document text
    • http://abwninemile.com/uploads/files/momowige.pdfIn PDF document text
    • https://joebalogh.ro/imagini_ws/47059649609.pdfIn PDF document text
    • http://yousefmaktabi.com/ckfinder/userfiles/files/75574179246.pdfIn PDF document text
    • http://smartvoicesys.com/userfiles/momata.pdfIn PDF document text
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/cd2f003ba54442a07e0055cb61c99e8f/kajedajosunomazuwimerana.pdfIn PDF document text
    • https://myvideoclasses.com/ci/userfiles/files/fofewe.pdfIn PDF document text
    • http://irk-yoga.ru/upload/files/14798515081.pdfIn PDF document text
    • http://slovoveri.org/userfiles/pafegi.pdfIn PDF document text
    • http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/sumotetoruz.pdfIn PDF document text
    • http://www.stadion-zarya.ru/ckfinder/userfiles/files/nofepewesuri.pdfIn PDF document text
    • http://birkhoffhi.com/userfiles/files/kuwigabowesazejonelon.pdfIn PDF document text
    • https://impulsa.mantareys.net/uploads/plantillas/files/subomuxamevuvopavipomux.pdfIn PDF document text
    • http://wogo.net/data/wogo.net/uploadfiles/file/28918712529.pdfIn PDF document text
    • http://pc580.cn/upload_fck/file/2021-9-14/20210914021236348619.pdfIn PDF document text
    • https://www.travelknowhowscotland.co.uk/assets/js/ckfinder/userfiles/files/75196359024.pdfIn PDF document text
    • http://www.keizerco.nl/userFiles/file/85748398213.pdfIn PDF document text
    • http://bscartridge.com/pic/pisawavavirop.pdfIn PDF document text
    • http://kd-council.com/upfile/files/lamijazaxa.pdfIn PDF document text
    • http://webcertain.ca/contentupload/fckeditorUploads/organization_/file/rotefofir.pdfIn PDF document text
    • http://minisadik-margaritka.ru/admin/ckfinder/userfiles/files/91722998952.pdfIn PDF document text
    • http://botosani.ro/img/uploads/file/lajifamorasobadib.pdfIn PDF document text
    • https://gebzecelik.com/userfiles/file/57830129795.pdfIn PDF document text
    • http://mazurubezpieczenia.pl/zdjecia/fck/file/7230915348.pdfIn PDF document text
    • https://kluchar.net/klucharnet/images/file/rozakulosanezopige.pdfIn PDF document text
    • http://magicfood-cn.com/files/20211104124708.pdfIn PDF document text
    • http://kmjmt.com/news/upload/file/211101092557129811arcszk.pdfIn PDF document text
    • https://rioclaro.com.co/kcfinder/upload/files/31950562741.pdfIn PDF document text
    • http://denda.co.kr/ckfinder/userfiles/files/puxatabitiramikovifulajaf.pdfIn PDF document text
    • http://xn--90aoa5aj.xn--p1ai/ckfinder/userfiles/files/nuferefebekamawe.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_off0001210a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1210A 17620 bytes
SHA-256: 299f4a9d2ef3fdcc657b1b75c8c3d3ba4badeb45d7adaa54e45a50d03b25a112
font_01_sfnt_off00014f6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14F6F 10816 bytes
SHA-256: d8543e8325b443a7e5ec567c0a03486023d74b81a6ac5bd0778549f3ea90b429
font_02_sfnt_off00016835.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16835 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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