Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc72cec74d3832e…

MALICIOUS

PDF

329.5 KB Created: 2022-03-16 20:45:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 928ebcb226923733f95ee707fece0522 SHA-1: b989a6358841d6b54fe1001eb69ca696b57594e5 SHA-256: 1dc72cec74d3832e0165b52baf6b8caab01501a5294a419885c7c6ec759ff835
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6388

Heuristics 5

  • 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.
  • 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=offline+calling+apps+for+android PDF link annotation
    • http://www.ddu-hk.cz/ckfinder/userfiles/files/pizeperoxanazilejimule.pdfIn PDF document text
    • http://geredekombiservisi.com/userfiles/file/venunagenaxa.pdfIn PDF document text
    • http://tlbafw.com/upload/maxapagob.pdfIn PDF document text
    • https://fcefrance.com/kcfinder/upload/files/girezo.pdfIn PDF document text
    • http://mms.vru.ac.th/kcfinder/upload_new/files/gewozelobigifetujejuboram.pdfIn PDF document text
    • http://imi.vc/upload/files/sigiwirasozosud.pdfIn PDF document text
    • https://dom4m.de/userfiles/files/15511967830.pdfIn PDF document text
    • https://mastirz.com/userfiles/files/87671760205.pdfIn PDF document text
    • https://www.voctestbursa.org/editconsole/kcfinder/upload/files/1343131995.pdfIn PDF document text
    • https://kurtoglumob.com/upload/file/nexatonuk.pdfIn PDF document text
    • http://papianiarch.it/userfiles/files/22003070685.pdfIn PDF document text
    • https://pod-jaskolka.pl/files/files/65065995861.pdfIn PDF document text
    • http://sklenicky-obchod.cz/web/admin/fckeditor/userfiles/file/xoretoxesoxapekuxixal.pdfIn PDF document text
    • http://umffz21.ru/admin/ckfinder/userfiles/files/90292756297.pdfIn PDF document text
    • http://yjbiotech.cn/upload/files/71551709827.pdfIn PDF document text
    • http://1night2day.com/ckupload/files/37564403138.pdfIn PDF document text
    • http://hondatayho.vn/images/ckeditor/files/zipovotafoseleferemapasak.pdfIn PDF document text
    • http://turbotechnik24.de/userfiles/file/15789549911.pdfIn PDF document text
    • http://karunb.com/UpLoads/files/xirogirexija.pdfIn PDF document text
    • https://tahitotfaluovodak.hu/ckfinder/userfiles/files/juvosezatekuritozo.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fd808cd0a06---38645150148.pdfIn PDF document text
    • http://yigang-lin.com/uploads/files/202203091015385899.pdfIn PDF document text
    • http://miminku2.com/contents/files/dutidawonefumuteg.pdfIn PDF document text
    • https://gertiesbloomers.com/kousumi/nulook/upload/fckimages/file/puwuratub.pdfIn PDF document text
    • http://toroisg.com/public/images/files/42485336295.pdfIn PDF document text
    • http://wittsend.com/userfiles/file/xonagejore.pdfIn PDF document text
    • http://phuctuong.vn/images/files/34913492843.pdfIn PDF document text
    • http://vibratingsieve.com/d/files/babusazuv.pdfIn PDF document text
    • https://sangolongphuong.vn/longphuong/news/files/xikofelonewazusezafano.pdfIn PDF document text
    • http://wwsm-us.com/files/file/nofuroganazedezuxemulaf.pdfIn PDF document text
    • http://yung-shun.com/userfiles/file/55451037995.pdfIn PDF document text
    • https://maconlux.lu/userfiles/files/67405162145.pdfIn PDF document text
    • http://dobermanncz.eu/files/80341030697.pdfIn PDF document text
    • https://cambodiaangkorhomestay.com/userfiles/file/28921254868.pdfIn PDF document text
    • http://vnos.vn/app/webroot/uploads/files/86416765175.pdfIn PDF document text
    • http://www.anpamedical.com/kcfinder/upload/files/kemesevubozamajimuw.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_off0004b374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B374 19296 bytes
SHA-256: 75d8fad754557085fe87ec16b7546b5be185b4b3fb1574ad7d599215b8835f13
font_01_sfnt_off0004e64c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E64C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004fd6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FD6C 10724 bytes
SHA-256: cb2ae81c504a9d77b68ad3ac69182b524fccbb99383198dff62a53aa5e68c39e