Malicious PDF — malware analysis report

Static analysis result for SHA-256 98fa86df75bb89ff…

MALICIOUS

PDF

450.1 KB Created: 2022-02-02 14:18:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: 01a3c3f814707f0fafa7a662a7a1c1ea SHA-1: a5fab27eb5ed5ddc1667feb5d8ac798a857fcc69 SHA-256: 98fa86df75bb89ff5830480db90482af7c84d53dfcc7b99568d4b3da22473bd8
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5711

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://yubit.co.za/XSRYdR1H?utm_term=odia+film+ajatshatru+song PDF link annotation
    • http://damutech.kz/upload/2021/12files/2112100518483558791ip75.pdfIn PDF document text
    • http://hamdannepal.com/userfiles/file/pususeziwobijovipanafuvo.pdfIn PDF document text
    • http://jingyitech.com/uploadfile/33230129130.pdfIn PDF document text
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/063d29d13af774c1645c130590319c6b/82828477573.pdfIn PDF document text
    • http://oppedisanorobertosrl.com/userfiles/files/xulebi.pdfIn PDF document text
    • http://jcmb.gris-de-payne.fr/app/webroot/kcfinder/files/zibokataxuwetidugar.pdfIn PDF document text
    • http://growlink.biz/userfiles/file/49108325809.pdfIn PDF document text
    • https://mycultureis.com/FileData/ckfinder/files/20211023_5ACBCF776DD801FF.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b9b12f59cba---wotimopojone.pdfIn PDF document text
    • https://valubil.com/public/uploads/cms_file/cms_files/gifimepejozejobuliniv.pdfIn PDF document text
    • http://geoman.cz/data/file/5751326369.pdfIn PDF document text
    • http://www.sunriseacademy.in/ckfinder/userfiles/files/36152775260.pdfIn PDF document text
    • http://demo-jesma.shopcloud.es/ckfinder/userfiles/files/78693216204.pdfIn PDF document text
    • http://ivankotov.ru/img/lib/file/xasagelubiposebexi.pdfIn PDF document text
    • http://refmexgl.com/web/uploads/assets/userfiles/file/28695702796.pdfIn PDF document text
    • https://funstoreus.dialog.org/userfiles/file/59009431882.pdfIn PDF document text
    • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edf0416c20d---masanevejawogunima.pdfIn PDF document text
    • https://alcoquimicos.com/ckfinder/userfiles/files/tipirudipi.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/65831639adbd15f5737bc94444a36608/kepomuseririjaxokuxetegu.pdfIn PDF document text
    • http://tulga.ru/editor/files/60608241578.pdfIn PDF document text
    • http://safeabortionnepal.com/userfiles/file/notutirupabilexuba.pdfIn PDF document text
    • http://conomiya.com/images/uploadedimages/file/xonitubopaduj.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/01nappu5n404aqm4rud4l8ueg5/titifutenexosuwupawu.pdfIn PDF document text
    • http://www.zaluziemalina.cz/userfiles/file/3941692066.pdfIn PDF document text
    • http://ildong.org/sa_upload/userfiles/file/20210721053819.pdfIn PDF document text
    • http://www.ville-civaux.fr/admin/js/ckfinder/userfiles/files/junatimit.pdfIn PDF document text
    • https://divinenine.net/userfiles/file/kidopuxov.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_off00069e9d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00069e9d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00069e9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E9D 10924 bytes
SHA-256: 7d1558dc4c834f31c6d2669fccbfe35141937c221dc7d7394359890c890c8966
font_01_sfnt_off0006b775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B775 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006ce90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE90 16528 bytes
SHA-256: 9c4088688e4d69669dcdd724a679b33e6b6e76a4eda7620d8bd41fe74359497f