Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6797260ae6e937b…

MALICIOUS

PDF

51.1 KB Created: 2021-01-26 02:54:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e49aeb6e051f5cbba2189d1aca1cce0d SHA-1: edb7602a2b5b79ddca9c2d00bd481a807dc9ccb5 SHA-256: a6797260ae6e937b29cc8cb9d06013094d7935bfd6f632a399165e552110e92b
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 0.7362

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wb?keyword=world%20apartment%20horror%20movie PDF link annotation
    • https://cdn.sqhk.co/lofopapenow/jchj57g/3d_car_wallpaper_full_hd_download_720p.pdfIn PDF document text
    • https://cdn.sqhk.co/lawafopugu/Tjaeagf/tidikevebadovugiromupabap.pdfIn PDF document text
    • https://cdn.sqhk.co/mowogibewu/jcDagjj/36837048180.pdfIn PDF document text
    • http://my-favshopd.online/balloon_slingshot_for_sale_houstonf9je0.pdfIn PDF document text
    • https://cdn.sqhk.co/rubogomuweme/haMjbZ1/minecraft_2048x2048_texture_pack_1._8.pdfIn PDF document text
    • http://tiktoktop.design/aamc_mcat_practice_test_predictability4sq5p.pdfIn PDF document text
    • https://cdn.sqhk.co/salijuvam/4uggibp/muxife.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/36404762797.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/school_letterhead_format.pdfIn PDF document text
    • http://dexifuv.epizy.com/tools_for_formative_assessment_k_lambert.pdfIn PDF document text
    • http://weresavewi.epizy.com/google_sheets_script_onedit_cell.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/72448405759.pdfIn PDF document text
    • http://pemukusa.epizy.com/dmso_sds_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rumezo/top_10_android_phones_2019_under_20000.pdfIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/diablo_2_paladin_guide_single_player.pdfIn PDF document text
    • http://lesizemub.epizy.com/93134428172.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/lenezegajulilelusexunaker.pdfIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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