Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbed809d45d04c60…

MALICIOUS

PDF

82.8 KB Created: 2021-10-10 21:11:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: f57119d64286160949d0d6ed054fd887 SHA-1: 134373cf98462c3753ebc3b76337cc314dfc54c0 SHA-256: cbed809d45d04c60004e4f09f12c687afd2d3a961ca8ea339fc1983b5d39c8d6
211 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://laborke.ru/uplcv?utm_term=stock+speculation+great+depression PDF link annotation
    • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16159226828916---zazokifolodezonufi.pdfIn PDF document text
    • http://vcelari.naceradec.cz/includes/ckfinder/userfiles/files/vofasilon.pdfIn PDF document text
    • https://sasalidayanisma.org/uploads/file/57969311842.pdfIn PDF document text
    • https://congchungnguyenlieu.vnpec.xyz/uploads/files/84294379797.pdfIn PDF document text
    • https://tlkingatlan.hu/kepek/other/file/76095663092.pdfIn PDF document text
    • http://hyundaidongdo3s.com/images/files/lumomijoxonofogibo.pdfIn PDF document text
    • https://lideregitimpaketleri.com/calisma2/files/uploads/43529341107.pdfIn PDF document text
    • https://5703n1n6999-6a55.com/contents/files/28937503925.pdfIn PDF document text
    • https://myphi.biz/nbloom/fckuploads/file/tafonupuloruwedokof.pdfIn PDF document text
    • http://libertyquad72.fr/userfiles/file/2146131014.pdfIn PDF document text
    • http://e5tbr.alruaa.com/ckeditor-ckfinder-integration/uploads/files/zusafebov.pdfIn PDF document text
    • https://sportyou.fr/ckfinder/userfiles/files/66981024406.pdfIn PDF document text
    • https://coil.hk/upload/files/94320872136.pdfIn PDF document text
    • https://geloracinta.com/contents/files/pugenobutunux.pdfIn PDF document text
    • http://xn--80aamwn.xn--p1ai/userfiles/file/46326653458.pdfIn PDF document text
    • http://tabletopad.com/images/file/jexifipejoz.pdfIn PDF document text
    • http://hoadon-dientu.net/images/files/4445802781.pdfIn PDF document text
    • https://rubyyadav.com/nbloom/fckuploads/file/nigokigazovavobijo.pdfIn PDF document text
    • https://holcom-wd.holcom.vn/webroot/img/files/gelixijivotuxol.pdfIn PDF document text
    • https://theelementrama9.com/userfiles/files/58637612405.pdfIn PDF document text
    • http://elskenecologie.nl/files/55210419751.pdfIn PDF document text
    • http://leprofit.ee/cmsfile/contentfiles/95974006659.pdfIn PDF document text
    • https://ecodiagnost.com/ckfinder/userfiles/files/38393524128.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_off0000dad8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000dad8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD8 10956 bytes
SHA-256: 3173c3d28bd7f6c0d4197571295c560bb1d619d1a7c3e3ebc0570c1b37b5e84e
font_01_sfnt_off0000f426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF426 19148 bytes
SHA-256: 4ab4cbcef80bd8b0ff58267c7cc2c3303e0b282015ae4ca40a75f6df71ed871f
font_02_sfnt_off00012587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12587 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1