Malicious PDF — malware analysis report

Static analysis result for SHA-256 624ada00a3e683a3…

MALICIOUS

PDF

382.3 KB Created: 2022-02-15 01:43:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-28
MD5: 363bc08240189ea1861ecb0fa1e633ba SHA-1: b6b4efa02a1eafc0a4d24745e8b6ea861ffa03b9 SHA-256: 624ada00a3e683a33bed1648479f09d13d106a3c36a4f02dba0bd5a24dc51e42
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6428

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
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.
  • 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://mifuj.co.za/XSRYdR1H?utm_term=food+sensory+evaluation+pdf PDF link annotation
    • http://vyveva.eu/UserFiles/File/vukefudufuk.pdfIn PDF document text
    • https://cometsecurity.in/admin/userfiles/file/25489164805.pdfIn PDF document text
    • http://tns-china.cn/editor_upload_image/file/revetoduduxe.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/3025bad80a982d96d6986b3584b959ba/joxarinavomatagegorijok.pdfIn PDF document text
    • http://iproperty.ae/userfiles/file/kufenojigebevab.pdfIn PDF document text
    • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615226399cf9a---48069423095.pdfIn PDF document text
    • https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/dcf4c73a4301645616c004a8a5d6eb27/zakunusofebuteboseb.pdfIn PDF document text
    • http://sport-zavora.cz/data/file/sedukefipuxigigadobafid.pdfIn PDF document text
    • http://kbchina.de/upload/58358993622.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614789e69060d---newugolupogo.pdfIn PDF document text
    • http://ciaomamma.hu/editor_up/74302721931.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1610018f45a663---78151594087.pdfIn PDF document text
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161823acea3fa0---jibekebopinamaneneridur.pdfIn PDF document text
    • http://tinhdauvietnam.vn/upload/files/fatenafasixipopazabajevo.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/34ceacc1028c677510f69184dc991570/11807659627.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/161292775e3eef---3829157030.pdfIn PDF document text
    • http://businessvaluationapp.com/fck_files/file/89206364421.pdfIn PDF document text
    • http://parquessolaresdenavarra.com/userfiles/files/41682050087.pdfIn PDF document text
    • http://nomorecpapmachine.com/userfiles/files/lafuxoneked.pdfIn PDF document text
    • https://tyko.pl/userfiles/file/keverip.pdfIn PDF document text
    • https://yellowmangocafe.com/userfiles/file/kemafagitanepoxolejaw.pdfIn PDF document text
    • http://qiuyutv.com/userfiles/files/20210730092111.pdfIn PDF document text
    • https://nhatngudongkinh.com/upload/ckupload/files/97653389930.pdfIn PDF document text
    • https://kalashad.com/userfiles/file/tofuguwivemuvejofop.pdfIn PDF document text
    • http://shinyoungvalve.com/userData/board/file/81142590614.pdfIn PDF document text
    • http://acecaalcoy.com/userfiles/file/kekuxuxexesogesegatatano.pdfIn PDF document text
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1620ae5bec193f---56303724396.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 extracted file (font_00_sfnt_off00058d43.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00058d43.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058d43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58D43 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005a463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A463 10748 bytes
SHA-256: 45df83431a63d30b76797c5ff07b2bb458e1abc093d85b058632cbee23c384fe
font_02_sfnt_off0005bd37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD37 17240 bytes
SHA-256: ebcef75f2aa95f6be5fc34aa1ed6dc8a8e015897505f1191e65d3dc7f44d120b