Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b6813f6195ed9d3…

MALICIOUS

PDF

41.5 KB Created: 2021-09-28 02:36:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 402c985b57ad66fbed488196084408bc SHA-1: 2c4e3dc8a8d937e6c758bac02f7ac4ab19d024df SHA-256: 6b6813f6195ed9d3109f05590424c48529755d2e22c158b03c2f7f7b482f2d2d
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF is identified as a phishing lure due to its image-only content and a single clickable action. The document body is heavily obfuscated, but the heuristics indicate it's designed to trick users into clicking external links. The presence of numerous embedded URLs, many pointing to disposable domains, further supports a phishing or malicious redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6964

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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
  • 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 http://charivne.info/images/file/vufopasifezi.pdf In PDF document text
    • http://www.aamuhsv-madisonalumni.org/files/files/64200672725.pdfIn PDF document text
    • http://taxfreepoint.com/file/domuvamoguteb.pdfIn PDF document text
    • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/d8cm8aphhnmku95k8813ko6fjd/40068215014.pdfIn PDF document text
    • http://www.fd.ntou.edu.tw/ckfinder/userfiles/files/jusexunixonikipusuxopopos.pdfIn PDF document text
    • http://theclelandgroup.com/img/upload/file/digima.pdfIn PDF document text
    • http://ylpqzl.com/ckfinder/userfiles/files/kegila.pdfIn PDF document text
    • https://fallsplat.se/bildbank/file/jokinigiga.pdfIn PDF document text
    • http://wideanglepackaging.com/ckfinder/userfiles/files/fafilumajovatoxugetabes.pdfIn PDF document text
    • http://gynekolog-zilina.sk/uploads/fck/file/momos.pdfIn PDF document text
    • http://purplebyanki-com.bvirani.com/ckfinder/userfiles/files/luxibenupepuvej.pdfIn PDF document text
    • https://autosaloncenter.com/uploads/file/87384941319.pdfIn PDF document text
    • http://amsasecretariat.fr/userfiles/file/1468606642.pdfIn PDF document text
    • http://birizgardenhotel.com/userfiles/file/xapewabinibunifipalodinot.pdfIn PDF document text
    • https://serwisnawigacji.pl/userfiles/file/20707065982.pdfIn PDF document text
    • https://littleitalypizzany.com/nbloom/fckuploads/file/kerolomuxor.pdfIn PDF document text
    • http://madveras.com/ckfinder/userfiles/files/9443288495.pdfIn PDF document text
    • https://easternresources.net/ckfinder/userfiles/files/78143008664.pdfIn PDF document text
    • https://sanipro.ma/app/webroot/uploaderfiles/98734093140.pdfIn PDF document text
    • http://yourhandmadeitems.com/userfiles/file/zipuvul.pdfIn PDF document text
    • http://www.nbc.com.vn/ckfinder/userfiles/files/vexesomirazoniwigetevuke.pdfIn PDF document text
    • http://sarkar.ie/userfiles/file/podenikefuxudumizupadur.pdfIn PDF document text
    • https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/lfplo7r7dqpr4red9q6pi6k346/86364203255.pdfIn PDF document text
    • http://cottoneauto.it/userfiles/files/vowagewulujukosuzonalig.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=suspended+timber+ground+floorPDF link annotation

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