Malicious PDF — malware analysis report

Static analysis result for SHA-256 191822a76ac58842…

MALICIOUS

PDF

71.0 KB Created: 2021-12-07 20:56:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 158c966a35c1fae3f66d78546e70e14a SHA-1: 9eba5d6d325f0c65aff3df58d1a4c5c8b673b5bb SHA-256: 191822a76ac5884229225a996e65780f023ceb12fabb5e5b502d33b52a3beeea
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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
  • 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://coretry.ru/uplcv?utm_term=the+legend+of+sleepy+hollow+questions PDF link annotation
    • http://zs-oilfieldequip.ru/d/files/39184149145.pdfIn PDF document text
    • https://virtualpulse.eu/UserFiles/file/giretikazuvabuvatulogori.pdfIn PDF document text
    • https://honkakuji.jp/honkakuji/images/ckfinder/files/91048470913.pdfIn PDF document text
    • http://teplorium.su/userfiles/file/78635776227.pdfIn PDF document text
    • http://amindoost.ir/images/upload/files/8181774743.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16160bd4fa3050---xapunuzibomufuragu.pdfIn PDF document text
    • http://cleanking.net/userData/board/file/potizutesutudofepiluripus.pdfIn PDF document text
    • http://soleilboo.com/images/uploads/files/42455767206.pdfIn PDF document text
    • http://dxczx.com/ckfinder/userfiles/files/20210905_161736.pdfIn PDF document text
    • http://nagyberki.hu/sites/default/files/fck_uploads/file/xevesawajomokaxavotizegaz.pdfIn PDF document text
    • http://bebsulmare.com/userfiles/files/wasaxovuluxunixidokelixi.pdfIn PDF document text
    • http://kahasat.cz/data/file/pilarolubitojavenu.pdfIn PDF document text
    • http://446888.top/userfiles/file/maliwawatir.pdfIn PDF document text
    • http://maxgear.cz/webpagebuilder/ckfinder/userfiles/files/gefujixijil.pdfIn PDF document text
    • http://fruitsad.pl/images/file/bevor.pdfIn PDF document text
    • http://leebyenghun.com/new/upload/board/files/fisizazimiwepukigufepogif.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/161862d1550179---88944481691.pdfIn PDF document text
    • http://arcenevents.nl/site/upload/files/zusokuvupavajaruvatem.pdfIn PDF document text
    • http://administracja.iptourism.com/UserFiles/File/manurozegena.pdfIn PDF document text
    • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612f9a660c7a1---26040533198.pdfIn PDF document text
    • http://bhk-aindling.com/userfiles/files/4419011421.pdfIn PDF document text
    • http://ottomaniantextile.com/userfiles/file/fofewumegopunakorig.pdfIn PDF document text
    • http://taiwanquinoafamily.com/shopadmin/upload/files/7960731451.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_off0000b2fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2FD 17124 bytes
SHA-256: c97b9ccc912075d5e89dde38ce8b3e807bcc15562c34f50762f513f2e430ca08
font_01_sfnt_off0000df30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF30 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000f5d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D4 10924 bytes
SHA-256: 437094b10daed5854a50274d574a04081dce4fe643ebd37b7e6c57df378c80dd

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