Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa5b75b2e6249649…

MALICIOUS

PDF

61.0 KB Created: 2021-10-09 03:55:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 0e4e3dbdb3dacb9a34384d5bb7f11026 SHA-1: 4bf98c78b392fe8b27acce84fe93f275314a16b8 SHA-256: fa5b75b2e6249649a9ef7822d4233102d336ebc8af2d9a8bb18aab194755affb
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The file's structure and the presence of many external links suggest it's designed to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8787

Heuristics 4

  • 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
  • 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://ketchas.ru/uplcv?utm_term=in+a+corporation PDF link annotation
    • http://naphogacomposite.com/upload/files/gobikeri.pdfIn PDF document text
    • https://jazykovytabor.topenglish.sk/app/webroot/gallery/files/duwurikel.pdfIn PDF document text
    • http://logopeda-empatia.pl/content/file/57713346837.pdfIn PDF document text
    • http://thuocamakong.net/userfiles/image/file/powixenuvibeluvazuw.pdfIn PDF document text
    • https://cartolmania.it/file/14866879953.pdfIn PDF document text
    • http://xn--80age2amlc.xn--80adxhks/pics/images/file/fofakab.pdfIn PDF document text
    • https://doosradashak.in/ci/userfiles/files/subuvegisituvosekorut.pdfIn PDF document text
    • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/ec48bb849668fcb385f9e263b1f9471e/xebixusonixe.pdfIn PDF document text
    • http://lingeriedediva.com/UploadFile/file/2021100613000173499.pdfIn PDF document text
    • http://acutecardio.ru/sadm_files/740052946.pdfIn PDF document text
    • https://rgcsmt.org/ckfinder/userfiles/files/53355162040.pdfIn PDF document text
    • https://kibledergisi.net/resimler/files/jufuditaboreda.pdfIn PDF document text
    • http://faceconnects.com/ci/userfiles/files/punemirunamotafi.pdfIn PDF document text
    • http://jhdjt.com/images/upload/File/lubusigorudevafawixuxupe.pdfIn PDF document text
    • http://bukharageorgia.com/sites/default/files/file/jukelodisime.pdfIn PDF document text
    • http://baruraprotidin.com/assets/ckfinder/core/connector/php/uploads/files/6359245844.pdfIn PDF document text
    • http://www.zywawiara.pl/pliki/24401315330.pdfIn PDF document text
    • https://distriparkbotlek.nl/userfiles/files/56655067057.pdfIn PDF document text
    • https://metricgroup.it/uploads/file/memapiputediwu.pdfIn PDF document text
    • https://shriayurvednagpur.org/public/ckfinder/userfiles/files/pabavutaxukerajularerino.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/fv72v8abugmkj3kdmegb14bl83/86813240440.pdfIn PDF document text
    • http://szolnokepul.hu/userfiles/file/wevewezazidefejiwon.pdfIn PDF document text
    • http://stroykap.com/application/views/stroykap/userfiles/file/90899318719.pdfIn PDF document text
    • http://ideviceplus.be/app/webroot/files/userfiles/files/5080588301.pdfIn PDF document text
    • http://savaksangida.com/resimler/files/mizurelufukuk.pdfIn PDF document text