Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a763166330be40…

MALICIOUS

PDF

299.3 KB Created: 2022-03-09 03:00:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: b700e78989d2bc03acb3a4e208e06a23 SHA-1: 879ba0408c95e855fe12e4c717e7f744fd8a100f SHA-256: 18a763166330be402f9ba9bdc59353350df1b9d29b74585f8e368e077d2e9e5f
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6852

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://cafij.co.za/XSRYdR1H?utm_term=affidavit+of+personal+service+form+ny PDF link annotation
    • https://www.propertymegamart.in/admin/ckeditor/kcfinder/upload/files/3037933193.pdfIn PDF document text
    • https://nakipoglugroup.com/upload/ckfinder/files/87196187326.pdfIn PDF document text
    • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/46783ba1d7cf8c231fc99432dd283cbf/33396842095.pdfIn PDF document text
    • http://hfengly.dk/skoleportalen/userfiles/file/juzekideresesomonemisovi.pdfIn PDF document text
    • http://muralsdecoracio.com/ckeditor/kcfinder/upload/files/58497704705.pdfIn PDF document text
    • https://izometal.net/mm/file/ligipige.pdfIn PDF document text
    • https://drinkpoint.com/uploads/files/41779083119.pdfIn PDF document text
    • http://ume.civilkozpont.hu/uploads/file/81005501697.pdfIn PDF document text
    • http://afro-safari.com/upload/files/xabudirut.pdfIn PDF document text
    • http://elskup.pl/images/assets/file/gowaxapap.pdfIn PDF document text
    • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/scl4qkogarkclq14dp8bo8778v/poxebijojepi.pdfIn PDF document text
    • http://tvojashkola.ru/img/upload/files/40820514865.pdfIn PDF document text
    • https://ever.dacola.com/upload/files/fefupekutemof.pdfIn PDF document text
    • http://cecev.com/stockages/files/rowafolofutukotimasoreko.pdfIn PDF document text
    • http://submission.jpvm.kr/pds/userfiles/files/dokiwokebuserupagogi.pdfIn PDF document text
    • https://implant-drill.com/userfiles/file/72637702848.pdfIn PDF document text
    • https://receptabc.hu/images_banner/files/guxajo.pdfIn PDF document text
    • https://www.3zslitomysl.cz/admin/editor/kcfinder/upload/files/46561610900.pdfIn PDF document text
    • https://www.escolamacrobiotica.pt/backoffice/assets/js/kcfinder/upload/files/33490288805.pdfIn PDF document text
    • https://myleague.vn/uploadfiles/kcfinder/files/lazotidadixu.pdfIn PDF document text
    • http://www.casopisfolklor.sk/assets/kcfinder/upload/files/61136234269.pdfIn PDF document text
    • https://www.nysc.lk/dmin/include/ckeditor/kcfinder/upload/files/vexumu.pdfIn PDF document text
    • http://rigosarchitects.gr/userfiles/file/pexuregozefudofekili.pdfIn PDF document text
    • http://nanobubblevietnam.com/uploads/userfiles/file/16483396763.pdfIn PDF document text
    • http://kameleonhastanc.hu/files/file/pikapafigewijedusukupana.pdfIn PDF document text
    • https://baxsporthorses.com/userfiles/file/97889577024.pdfIn PDF document text
    • http://instalace-charvat.cz/userfiles/file/49979050192.pdfIn PDF document text
    • http://eintracht-bayreuth.de/kcfinder/upload/files/kezex.pdfIn PDF document text
    • http://stauarchitetti.eu/userfiles/files/46992129656.pdfIn PDF document text
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16207c7b2b94b7---83582731676.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_off00043bda.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00043bda.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00043bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43BDA 18636 bytes
SHA-256: 3b0df92fc2044d5084aaf39c56e862f680d472debd8213513c6363ad0c47a620
font_01_sfnt_off00046cf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46CF2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00048412.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48412 10940 bytes
SHA-256: e79144c30a0009b1c48041fcec6ac0f0ba664c6754192d7b7f40447e8bdea00f