Malicious PDF — malware analysis report

Static analysis result for SHA-256 7823bf23e61e48ad…

MALICIOUS

PDF

87.0 KB Created: 2021-10-05 01:18:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: a48024c881361970d90a81a68a91140e SHA-1: 0288aa2be2875d8d0d410adc8701cd030ac8f747 SHA-256: 7823bf23e61e48addbc10cc1ff4354113841e49c79e2bc05edd6df1acc00bbae
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://irlanc.ru/uplcv?utm_term=can+you+reheat+brown+rice PDF link annotation
    • https://panificioilcavaliere.it/userfiles/files/nexemaguwepipa.pdfIn PDF document text
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16132b3b421beb---18621659014.pdfIn PDF document text
    • http://montpellier-businessplan.fr/mbp/upload/images/images/upload/ckfinder/gagufunanon.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/6e2f91ac8a60adc701818651b13b3a64/19462643489.pdfIn PDF document text
    • http://igigeothermal.jp/userfiles/file/pibopifogan.pdfIn PDF document text
    • https://sanghvicranes.com/staging/media/vezebirez.pdfIn PDF document text
    • http://irina-beha.com/ckfinder/userfiles/files/werelefowo.pdfIn PDF document text
    • http://studioindelicato.com/userfiles/files/suxogiduzew.pdfIn PDF document text
    • https://deltarents.com/upload/ckfinder/files/38381038527.pdfIn PDF document text
    • https://exam12.menapoint.com/app/webroot/upload/files/27859054684.pdfIn PDF document text
    • http://canyonmeadows.org/userimages/maresumebodedavi.pdfIn PDF document text
    • https://maydangson.com/vietkiendo/upload/file/rezanabemopijodisudapop.pdfIn PDF document text
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138491070f4c---23535330855.pdfIn PDF document text
    • http://rioairporttransfer.com/ckfinder/userfiles/files/damufupulegixamoxi.pdfIn PDF document text
    • http://jadever.vn/Images_upload/files/68178995853.pdfIn PDF document text
    • http://www.allatpatikapecs.hu/images/file/21607469262.pdfIn PDF document text
    • http://gerd-pollak.de/userfiles/file/66078698022.pdfIn PDF document text
    • http://lnshiyue.com/userfiles/file/20210929071912_428814499.pdfIn PDF document text
    • http://monteconsultants.com/image/upload/File/33427422956.pdfIn PDF document text
    • https://pcparts.fr/ckfinder/userfiles/files/29194823135.pdfIn PDF document text
    • http://helloslow.com/data/userfiles/files/97277455357.pdfIn PDF document text
    • https://schmitz.cz/res/file/bexijuzujipasexuxuluwana.pdfIn PDF document text
    • http://dd-eng.com/files/files/51534890908.pdfIn PDF document text
    • http://princeworldwide.com/multimedia/userfiles/file/jarumuwojofod.pdfIn PDF document text
    • http://tuanlongland.com/upload/files/61249003623.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_off0000ecc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC9 10584 bytes
SHA-256: 2dd11604ee26f4df22ecd9cb3a9fd769f89bc7779062e88b43e703e78eeef299
font_01_sfnt_off000104fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104FD 18972 bytes
SHA-256: 35246a489c00f1facdc70566beabb2986b6b258ef3ceaa471f66672b8389a0f9
font_02_sfnt_off00013619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13619 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1