Malicious PDF — malware analysis report

Static analysis result for SHA-256 7968a2b896692cb1…

MALICIOUS

PDF

81.8 KB Created: 2021-02-25 05:33:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: cf4354ca3c178f76c41356f0894275dd SHA-1: 43d1a7f654fe288906d72d4e00ad4d1a0f899dcc SHA-256: 7968a2b896692cb1064540d42517eb8e001d61326c252009ed17f1f036599845
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs pointing to disposable domains, indicative of a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with techniques used to deliver second-stage payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9458

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://crophysi.ru/award?keyword=how+to+be+patriotism PDF link annotation
    • http://1-bog.ru/quote_from_martin_luther_king_jr_speechoqhge.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/2004_honda_civic_workshop_manual.pdfIn PDF document text
    • http://trastqort.online/php_simple_website_source_codeedl9e.pdfIn PDF document text
    • http://falorilipeb.mywebcommunity.org/70820030120.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413862/normal_5ff1ae6d56681.pdfIn PDF document text
    • http://taxevidel.medianewsonline.com/easy_flowchart_maker_online.pdfIn PDF document text
    • http://zobotalemogi.sportsontheweb.net/is_an_ear_thermometer_more_accurate_than_a_forehead_one.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446260/normal_5feea9b4101e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366660/normal_5ff6928925030.pdfIn PDF document text
    • http://bamefidev.mygamesonline.org/similarities_and_differences_of_apple_and_orange.pdfIn PDF document text
    • http://gojawufeki.getenjoyment.net/38748623310.pdfIn PDF document text
    • http://punejew.mygamesonline.org/kixijorubulidot.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/edema_in_pregnancy.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/17567161213.pdfIn PDF document text
    • http://liraperuwuw.atwebpages.com/who_is_the_little_girl_in_pet_sematary.pdfIn PDF document text
    • http://kakasis.onlinewebshop.net/dasoxopusonagovij.pdfIn PDF document text