Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a3747e8d6cbab7b…

MALICIOUS

PDF

50.6 KB Created: 2021-04-05 15:01:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9f140bbac8440de324959b136db2a6f5 SHA-1: 977782f8b79efdfdc083ec4602c712c34a46587e SHA-256: 8a3747e8d6cbab7be0d9200297a5c35090c843ca0a533713748f68e3a3363ca8
124 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6386

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://seumenha.ru/aws?utm_term=real+estate+capital+markets+analyst+salary PDF link annotation
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    • http://juzezudusota.mypressonline.com/igcse_geography_revision_guide.pdfIn PDF document text
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    • http://voduvalegef.66ghz.com/ross_consulting_club_casebook.pdfIn PDF document text
    • http://melowew.scienceontheweb.net/educational_psychology_books_in_urdu.pdfIn PDF document text
    • http://fuvagezilavez.mygamesonline.org/45169956385.pdfIn PDF document text
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    • http://nitafibejuze.mygamesonline.org/describing_people_s_personalities_exercises.pdfIn PDF document text
    • http://pusewuvi.medianewsonline.com/tekogekovesofe.pdfIn PDF document text
    • https://cdn.sqhk.co/fefamuve/hdiiSjj/bus_simulator_games_for_pc_play_online_free.pdfIn PDF document text
    • http://lumogodasekepi.mypressonline.com/91832340772.pdfIn PDF document text
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    • http://delinapod.mypressonline.com/46685137292.pdfIn PDF document text
    • http://salonly.xyz/risepuzit6ogxb.pdfIn PDF document text
    • http://bufizufidubak.rf.gd/923789318.pdfIn PDF document text
    • http://lojabupabavize.onlinewebshop.net/how_to_use_ge_digital_timer_with_astro.pdfIn PDF document text
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