Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cb1d1fdb53a77a…

MALICIOUS

PDF

510.3 KB Created: 2022-03-07 19:50:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: b639ac865e4bad82b04296948f295d96 SHA-1: ac446924a27415e88c2490e08f2fceee88c1b7ab SHA-256: a9cb1d1fdb53a77a7ec47c0a2affe586444ee838158e43fa3024249e0dec0483
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5017

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://lovig.co.za/XSRYdR1H?utm_term=actual+keylogger+for+android PDF link annotation
    • https://sanvexe.vn/webroot/img/files/kavowevexamuzizudupigo.pdfIn PDF document text
    • https://299-45.com/CKEdit/upload/files/pipub.pdfIn PDF document text
    • http://hypotekaprezamestnancov.sk/res/file/19780765913.pdfIn PDF document text
    • https://uncme.org.br/Gerenciador/kcfinder/upload/files/23585130306.pdfIn PDF document text
    • https://ms02bet.com/contents/files/koxilexojuv.pdfIn PDF document text
    • https://fzclicks.com/demo/files/editor/file/lapagosam.pdfIn PDF document text
    • https://dobski.pl/userfiles/file/30000495862.pdfIn PDF document text
    • https://eminencesolutions.in/resources/userfiles/file/somoponufixotaf.pdfIn PDF document text
    • http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621f5e7956f0e---12738427264.pdfIn PDF document text
    • http://hadjtaharsteel.com/app/webroot/js/kcfinder/upload/files/98257851516.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/a9e8b8aaf95287d8a97029e94e17d4f6/76073676482.pdfIn PDF document text
    • https://cnc-ar.ro/files/file/nuwabunivadogu.pdfIn PDF document text
    • https://dioss.eu/files/ckfiles/file/kivax.pdfIn PDF document text
    • http://prunay-en-yvelines.fr/ckfinder/userfiles/files/lumevuj.pdfIn PDF document text
    • https://faustgottes.ch/upload/files/xidov.pdfIn PDF document text
    • http://brilliantsolarpaneling.com/userfiles/file/58344628764.pdfIn PDF document text
    • http://pilot-market.ru/new/files/file/16155017564.pdfIn PDF document text
    • https://liad-alger.fr/admin/style/js/edit/kcfinder/..%5Cimages%5Ccontenue/files/11742623164.pdfIn PDF document text
    • http://muabannhagiare.net/images/uploads/files/xupol.pdfIn PDF document text
    • https://bowserqualicumbay.gocascadia.com/images/cms/file/50027186261.pdfIn PDF document text
    • http://hud101.vn/webroot/img/posts/files/kozerukomuzonerevisajilab.pdfIn PDF document text
    • https://callmarkinvestments.fortunekenya.com/callmark/files/goligerixaretuzewobunumu.pdfIn PDF document text
    • http://interiorconsignments.com/media/file/96665642476.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_off00078829.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00078829.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00078829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78829 10772 bytes
SHA-256: e5785e62b6ac6a0ae7971c90708f4cffdc6ef275546d15aee6847e57f27f54f0
font_01_sfnt_off0007a0ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0EC 19660 bytes
SHA-256: 7a02cd770fb91336d8496ee109c27a986a0dfddf770471a32945b880e3f18cc4
font_02_sfnt_off0007d2da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2DA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9