Malicious PDF — malware analysis report

Static analysis result for SHA-256 18ab4c3ffc41832b…

MALICIOUS

PDF

354.3 KB Created: 2022-05-07 02:55:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 8db9c302fd21014327f6d3dd1d7da7c0 SHA-1: 2359e51821265e8be1210fd35ac4910b2529b714 SHA-256: 18ab4c3ffc41832b636c0ff2c83037f0bf62fac011af3dd46b033df2331c9831
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7397

Heuristics 6

  • 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.
  • 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://lazav.co.za/XSRYdR1H?utm_term=dragon+city+guide+community+treasure+island+map+pdf+free+printable PDF link annotation
    • https://www.takaotakano.com/kcfinder/upload/files/37026056452.pdfIn PDF document text
    • http://balie.overeembv-profielen.nl/upload/files/wokonuzugovupabipolivef.pdfIn PDF document text
    • https://campestrechihuahua.com.mx/kcfinder/upload/files/92566154848.pdfIn PDF document text
    • http://maroba-zirndorf.de/file/40543485613.pdfIn PDF document text
    • http://xn--9d0bk1sn6gncq95flql.com/user_data/kcfinder/files/55719012125.pdfIn PDF document text
    • https://kibledergisi.net/resimler/files/74276918306.pdfIn PDF document text
    • http://sprinter-lab.ru/content/File/kewoxebivofanixubujilex.pdfIn PDF document text
    • http://hoangminhsaigon.vn/@dmin/js/ckfinder/userfiles/files/rujujijawenugufoxovok.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/162057c6972a5f---mavokovon.pdfIn PDF document text
    • http://thaihotelsale.com/FileData/ckfinder/files/20220422_3A9BC50730A109EF.pdfIn PDF document text
    • http://hoteldanang.com/uploads/images/files/58493363060.pdfIn PDF document text
    • https://amgab.se/wp-content/plugins/formcraft/file-upload/server/content/files/1624621bb9bf7a---vapemuzofis.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623b2dfa62c1e---46014280221.pdfIn PDF document text
    • https://zemiigori.com/uploads/file/voduwidixitejut.pdfIn PDF document text
    • http://constantemails.com/userfiles/file/164422929778279524281.pdfIn PDF document text
    • https://giriconsultancy.com/content_files/files/721340875.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/162056bd8c90b2---52879361740.pdfIn PDF document text
    • http://simonide.org/userfiles/file/neloke.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1626f1caa3942f---fobut.pdfIn PDF document text
    • http://orgue-chantepie.info/FCKeditor/upload/file/fonuvurat.pdfIn PDF document text
    • http://krdkraski.ru/public/file/50355193036.pdfIn PDF document text
    • http://photou.cc/ckfinder/userfiles/files/tadoxaxufixokotoragisedun.pdfIn PDF document text
    • http://sarigol.kr/userData/ebizro_board/file/latisotatobevatukufuje.pdfIn PDF document text
    • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16200e53878864---71032884224.pdfIn PDF document text
    • https://kaginugopaz.weebly.com/uploads/1/3/4/3/134310825/zajivitoj.pdfIn PDF document text
    • https://kipopedetazezu.weebly.com/uploads/1/3/0/7/130775623/kinuzat.pdfIn PDF document text
    • http://narnivet.com/userfiles/files/75108734255.pdfIn PDF document text
    • http://vivo-mebel.ru/upload/file/95336814950.pdfIn PDF document text
    • http://kaica.org.sa/ckeditor/kcfinder/upload/files/56195976460.pdfIn PDF document text
    • http://daindnc.com/fckeditor/userfiles/file/33675378227.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_off0005187c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005187c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005187c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5187C 11316 bytes
SHA-256: 4fc76af9b1786a74ac87112853ab2795f505b534d21a0cee255e413b94a9a51b
font_01_sfnt_off000532a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x532A9 17920 bytes
SHA-256: e11e0960ca835afc320a545c82a75a3fb9849729106c3f667007cd657c71f501
font_02_sfnt_off000561cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x561CD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1