Malicious PDF — malware analysis report

Static analysis result for SHA-256 584c83fa9fd2db5e…

MALICIOUS

PDF

62.3 KB Created: 2021-03-04 15:25:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: c403767d6ef7512c0c2294a4065bc086 SHA-1: cef5465c036fbecd4411eed772694574e2aeb1ed SHA-256: 584c83fa9fd2db5e2997cc7e74d290e1fbb7c55d69dc0cf347729f11fd4f7954
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 0.9785

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://botokaw.ru/award?keyword=craftsman+20+hp+46+lawn+tractor+parts PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4406775/normal_601056a0ae853.pdfIn PDF document text
    • https://cdn.sqhk.co/rekubapapup/eiggjjp/distance_meter_app_ios.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391015/normal_6005878b0153a.pdfIn PDF document text
    • http://pelinebaj.mypressonline.com/musubunurigugisuwomi.pdfIn PDF document text
    • https://mefevujeloz.weebly.com/uploads/1/3/4/3/134317202/fuzelefaxi.pdfIn PDF document text
    • https://nererudufujodu.weebly.com/uploads/1/3/4/3/134321338/548619d913.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427295/normal_5fdda3dd5573f.pdfIn PDF document text
    • https://cdn.sqhk.co/bajowekununa/djjjjhh/getty_images_free_download_comp_without_watermark.pdfIn PDF document text
    • https://xemegejimeje.weebly.com/uploads/1/3/1/6/131636808/5529715.pdfIn PDF document text
    • https://cdn.sqhk.co/midipijikami/GjjPg5i/pizza_hut_pan_vs_hand_tossed_calories.pdfIn PDF document text
    • https://sakukavazu.weebly.com/uploads/1/3/1/3/131379729/3728083.pdfIn PDF document text
    • http://vegifeda.mypressonline.com/dell_latitude_e5400_cto_datasheet.pdfIn PDF document text
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    • http://jupetovujek.epizy.com/sports_illustrated_magazine_july_2020.pdfIn PDF document text
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    • http://vebipijofozit.rf.gd/free_sheet_piano_music.pdfIn PDF document text
    • http://repibikapowa.epizy.com/85776241291.pdfIn PDF document text
    • https://86b7bb9a-6a0b-496c-a062-e8aa60c365d0.filesusr.com/ugd/dcf311_e6f42ad9d05747a080f6acce2ddccb3c.pdf?index=trueIn PDF document text
    • https://74fc1a11-d445-4ffb-bc6b-7a79e5a65a18.filesusr.com/ugd/097bd5_6bbee1aaf7cc48da94abdbe4c1b0ba65.pdf?index=trueIn PDF document text
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