Malicious PDF — malware analysis report

Static analysis result for SHA-256 af276e151286b10f…

MALICIOUS

PDF

69.9 KB Created: 2021-10-04 06:07:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: d3e2af7d6a463130e971ce13eaca42db SHA-1: 60b008b4e07e32564ffc368a8f281e04184dccab SHA-256: af276e151286b10f6cea9214db27d5eb9a581b2f2e9fc86167e76fe5dcbf818a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://www.cascatai.com.br/ckfinder/userfiles/files/dupujuru.pdf In PDF document text
    • https://bodzlomu.com/userfiles/file/56667092434.pdfIn PDF document text
    • https://msvadba.ru/files/file/didaragobogizuverixofoma.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/c2ad71cc64e4997e3a450034aada1458/vitafesenivezed.pdfIn PDF document text
    • http://finance-bulldog.cz/UserFiles/File/33701306901.pdfIn PDF document text
    • http://ifaistos.reality.gr/~triantaf/images/file/43071653191.pdfIn PDF document text
    • https://mongolia-volkslift.com/uploads/files/96997260007.pdfIn PDF document text
    • https://www.fangjin.org/ckfinder/userfiles/files/91072393570.pdfIn PDF document text
    • http://www.themixchange.com/userfiles/files/kumopawenogoguluvowufu.pdfIn PDF document text
    • http://contua.org/userfiles/file/43726506121.pdfIn PDF document text
    • http://obkladlazby.cz/userfiles/file/vofekisewopexibarakajo.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16156066d525cb---38381066882.pdfIn PDF document text
    • http://evaemlak.com/userfiles/file///7994011726.pdfIn PDF document text
    • https://idea-web.ro/app/webroot/files/userfiles/files/60364592744.pdfIn PDF document text
    • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/064abda1302777a51efd0b85d6c84578/zulemekorosajajakex.pdfIn PDF document text
    • http://vendsol.com/userfiles/file/wefapaganipajak.pdfIn PDF document text
    • https://demetraproject.eu/ckfinder/userfiles/files/87286098198.pdfIn PDF document text
    • https://huangs.tw/uploads/files/202109182207277739.pdfIn PDF document text
    • http://aweibel.com/Photo/file/kipokozipiwukagodoguba.pdfIn PDF document text
    • http://tmtechvn.com/webroot/img/files/65146393281.pdfIn PDF document text
    • http://como.gattinonimondodivacanze.it/themes/userfiles/files/18255221434.pdfIn PDF document text
    • http://nage-z.com/ckfinder/userfiles/files/18455032188.pdfIn PDF document text
    • http://redondoclassicburger.com/uploads/files/begako.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aace317602---89060114387.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=melanistic+tokay+gecko+for+salePDF link annotation
    • 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_off0000afd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFD7 10708 bytes
SHA-256: c2fbe221b10c2968d537789175afd1c4f47449477b782bd09f5e91e223bc1613
font_01_sfnt_off0000c89c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC89C 15832 bytes
SHA-256: 1a2bae0bde056533fd5ffdaa818c92a877d6ff78f9d06561ff7e2ac7c2118aa3
font_02_sfnt_off0000f0c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1