Malicious PDF — malware analysis report

Static analysis result for SHA-256 4879cb2ea396c0e2…

MALICIOUS

PDF

360.9 KB Created: 2022-03-12 22:18:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-22
MD5: 6b1b6286b3a6b0b3bb4ea1b0db0eb6ab SHA-1: a891c856ac873a02665be5731152c6a2ffddef59 SHA-256: 4879cb2ea396c0e24831b2e5502f0a09d3c03bf553eec01a0ef780f7f16e8145
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6597

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
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=powerdirector+pro+apk+free++2019 PDF link annotation
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/af099f94ab522ef0169b39208a316071/5615341006.pdfIn PDF document text
    • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16213d20433b70---35003921972.pdfIn PDF document text
    • http://confidenceagricare.com/assets/ckeditor/kcfinder/upload/files/pigone.pdfIn PDF document text
    • https://dol-rtknetwork.com/uploads/files/wesuwozataka.pdfIn PDF document text
    • https://ratco-hardware.com/Ups/files/87464107438.pdfIn PDF document text
    • http://votejoedestefano.com/editorData/file/banilaleketino.pdfIn PDF document text
    • http://firstcuwire.com/file_media/file_image/file/10410428011.pdfIn PDF document text
    • https://www.mvfht.ca/kcfinder/upload/files/jizufalevexegejixud.pdfIn PDF document text
    • http://wbdo.pl/userfiles/file/99558108000.pdfIn PDF document text
    • https://khanikango.in/file/13132037794.pdfIn PDF document text
    • http://gulfcoastlist.com/userfiles/file/senamuwuwilon.pdfIn PDF document text
    • https://angkorphotographyguide.com/userfiles/file/41483014077.pdfIn PDF document text
    • http://accountingworld.in/singhania/downloads/file/zunutateli.pdfIn PDF document text
    • https://hotellemaritime.com/hotel/upload/files/majazifomubew.pdfIn PDF document text
    • https://ripedesign.com/app/webroot/files/fckeditor/file/11760261110.pdfIn PDF document text
    • http://emke.hu/uploads/ckfinder/userfiles/files/99041867970.pdfIn PDF document text
    • http://dioblina.eu/userfiles/file/momesojuv.pdfIn PDF document text
    • https://infotechsystemsonline.com/ital/www/img/file/59830505589.pdfIn PDF document text
    • https://bandotrading.it/uploads/file/rezixetuf.pdfIn PDF document text
    • http://vagtteam.com/userfiles/Files/81892507320.pdfIn PDF document text
    • https://kaktutzhit.by/uploads/files/segivaxomog.pdfIn PDF document text
    • https://pacie.vn/web/uploads/files/8252077029.pdfIn PDF document text
    • http://sinocelltech.com/filespath/files/20220312095743.pdfIn PDF document text
    • https://mtdind.aicsmindia.org/ckfinder/userfiles/files/52233796222.pdfIn PDF document text
    • https://feniks9.ru/ckfinder/userfiles/files/kenesidoxujirabef.pdfIn PDF document text
    • http://myphamlulanjina.com/upload/files/pavujotilasadekibufalok.pdfIn PDF document text
    • http://vina2002.com/uploads/files/zazuzuwagu.pdfIn PDF document text
    • https://mannerfeltdesignteam.se/ckfinder/userfiles/files/8236802445.pdfIn PDF document text
    • http://cnsgafgl.netsociality.com/upload/files/wusilujagolumajoxuxibog.pdfIn PDF document text
    • http://avvocato-callegaro.it/public/file/xesavokasujopobaraju.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_off00052326.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00052326.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52326 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00053a46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53A46 10936 bytes
SHA-256: 9125a47841655bdb23b0a5d9399a2e1d1cc3f8debf797fcee613b4ff37b329e0
font_02_sfnt_off000553f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x553F0 24236 bytes
SHA-256: 50abc60416f7e6409b6fb94c07a57ebb81a5bd5b99b599330716dde51d4d4775