Malicious PDF — malware analysis report

Static analysis result for SHA-256 5521fdcac50a25dc…

MALICIOUS

PDF

385.8 KB Created: 2022-02-09 04:01:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: df58364338e5b817bddc13dd36729410 SHA-1: 8138aa1b7185925f4a813541516c7748235b2f0d SHA-256: 5521fdcac50a25dccf4102fb328770c790471d7c25f97c18005155d4483eecaf
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5061

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://melz-feu.ru/upload/85041614902.pdf In PDF document text
    • http://www.kymenhome-etsinta.net/tiedostot/files/kavepajetugimowopuxizoni.pdfIn PDF document text
    • http://yuanda-boiler.com/d/files/kobonef.pdfIn PDF document text
    • http://sz-nuoyi.com/Upload/file/2021090805240293521.pdfIn PDF document text
    • http://yamada-kajuen.com/js/kcfinder/upload/files/37657724221.pdfIn PDF document text
    • https://hamzakocakoglu.com/userfiles/file/vawupobumodonekuxa.pdfIn PDF document text
    • http://anhuifan.com/upload_fck/file/2022-2-1/20220201175742888175.pdfIn PDF document text
    • http://vrieshorst.nl/images/uploads/file/jugatotedonijuzumidizi.pdfIn PDF document text
    • http://yogo110.com/userfiles/file/10653286079.pdfIn PDF document text
    • https://pingthye.com/userfiles/files/22839286029.pdfIn PDF document text
    • https://www.temtechnologies.fr/ckfinder/userfiles/files/47937436074.pdfIn PDF document text
    • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611814f682b52---75832473386.pdfIn PDF document text
    • http://tbvshungviet.com/upload/files/43298397420.pdfIn PDF document text
    • https://bisleriwheel.genefied.co/ckfinder/userfiles/files/22527261033.pdfIn PDF document text
    • http://tlumacz-bialystok.pl/pliki/file/xeganenuv.pdfIn PDF document text
    • http://kinel-hunter.ru/upfiles/file/31884804682.pdfIn PDF document text
    • http://gzxmbx.com/uploadfile/file/2021091622480173499.pdfIn PDF document text
    • https://gikguamerica.com/userfiles/file/lagufatuvuf.pdfIn PDF document text
    • https://bomberosdenavarra.com/userfiles_nexo/files/14499332807.pdfIn PDF document text
    • http://ghefoot.com/fckeditor_userfiles/file/wapiwogafusuzivez.pdfIn PDF document text
    • http://biomehl.com/images/content/files/19863592427.pdfIn PDF document text
    • https://wroclaw-effatha.pl/grafiki/file/resolokanopalulupoputiko.pdfIn PDF document text
    • https://furedgym.webtarhely.org/webroot/upload/files/69233270790.pdfIn PDF document text
    • https://www.kpglearningbox.com/assets/kcfinder/upload/files/34376194014.pdfIn PDF document text
    • http://anhuifan.com/upload_fck/file/2021-12-1/20211201105618532931.pdfIn PDF document text
    • http://vasudevindustries.com/userfiles/file/8799457912.pdfIn PDF document text
    • https://gemwares.com/userfiles/file/91598672080.pdfIn PDF document text
    • http://kondicionery-lubertsy.ru/upload_picture/file/24079637662.pdfIn PDF document text
    • http://se-ty.ru/uploads/userfiles/file/xerarerikelovopomapo.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/20124f563b874359c67c4eec9a85409b/45426306548.pdfIn PDF document text
    • http://webs123.com/userfiles/file/tufezovujubomoxod.pdfIn PDF document text
    • http://gaineyranchaz.com/userimages/fenapezesenakizipej.pdfIn PDF document text
    • http://www.taylormadetc.com/siteadmin/ckfinder/userfiles/files/giwumakosanenov.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/de54a8998b049c2032e509f556b34b55/5824413366.pdfIn PDF document text
    • http://decaiyun.com/upload/file/211126032758042426nk53denjhncz.pdfIn PDF document text
    • https://www.champagne-cornevin.fr/ckfinder/userfiles/files/gupuja.pdfIn PDF document text
    • http://aolisenjiancai.com/data/files/bebamupikaguborax.pdfIn PDF document text
    • https://fotobolfestmeny.hu/mvc/userfiles/file/4098971907.pdfIn PDF document text
    • http://musikpark-live.de/userfiles/file/rofagubuwuk.pdfIn PDF document text
    • http://tageedesign.com/ssmpt/documents/file/23063571155.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=sample+corporate+branding+guidelinesPDF link annotation
    • http://s292376414.onlinehome.fr/datas/imgmail/file/95926893989.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_off000579f3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000579f3.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000579f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x579F3 11172 bytes
SHA-256: f2d815910691eb01ae40dc31474e4731a3bbc9b31c669cd241fe6d93d8bc2f21
font_01_sfnt_off00059396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59396 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005aab2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AAB2 16160 bytes
SHA-256: 4ac500d6e3c0ff81b9d7bba6b662cc1b6c57f4f8b05facc13edcda647588841f
font_03_sfnt_off0005c02d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C02D 20944 bytes
SHA-256: ab7c01578000f37f6b04bc43a5c436cb2f7049c0b475ef479ce10d98208ed717