Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afd5c346737ff18…

MALICIOUS

PDF

72.9 KB Created: 2021-09-01 17:58:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: b0ae612ce71a667d1ff6cdeff1941555 SHA-1: 552ee1554d53449e47b9fa72108cb94f99222109 SHA-256: 4afd5c346737ff184fb3ede0413db91943dccf5b8811c1a1b98f124cf54dbd05
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=real+time+with+bill+maher+september+18+2020 PDF link annotation
    • https://www.abrasco.org.br/ckfinder/userfiles/files/rutofubanixakelipab.pdfIn PDF document text
    • http://applexin.com/ttpsea/files/file/ranojurovug.pdfIn PDF document text
    • https://istanbularicilikfestivali.com/upload/ckfinder/files/21644601396.pdfIn PDF document text
    • https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f604512fdc---96204026983.pdfIn PDF document text
    • https://ikincielinmak.com/upload/ckfinder/files/62384177534.pdfIn PDF document text
    • http://daydreamspin.com/userfiles/file/74965738387.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16093c487d0927---lenimofem.pdfIn PDF document text
    • http://www.flamanville-76.fr/upload/file/pazamimoxiga.pdfIn PDF document text
    • http://nebovsem.ru/app/webroot/files/files/garin.pdfIn PDF document text
    • http://pwmtqatar.net/userfiles/file/tumajikaxibud.pdfIn PDF document text
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/8539bdf1631b8d88767253b0a24a06a8/zomedakimewe.pdfIn PDF document text
    • http://ajtoablakcentrum.com/_user/file/kafowa.pdfIn PDF document text
    • http://sushiloverca.com/uploads/files/buvitijaverekogefefav.pdfIn PDF document text
    • https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/93878740785.pdfIn PDF document text
    • https://escaletravel.com/userfiles/files/lekazo.pdfIn PDF document text
    • http://mackielaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sotasegizen.pdfIn PDF document text
    • http://amctop.com/board_data/editor_img/file/202106091546.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_off0000b653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB653 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ce65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE65 17528 bytes
SHA-256: 9866dc25b5822127ef0fc8c2ec71a2d715774b5796b54e5d952c0167bb6437c1
font_02_sfnt_off0000fadf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFADF 11064 bytes
SHA-256: 1515e305a9255dfc3477d99212c1b227e3e1abb9fbc1c94d1a2bb977a152478d

Open this report in the interactive analyzer, or submit your own file for analysis.