Malicious PDF — malware analysis report

Static analysis result for SHA-256 47f87bb4410f8ac4…

MALICIOUS

PDF

50.6 KB Created: 2021-02-14 16:40:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: c2b183bc70927367c764ae0fae066cb1 SHA-1: 8138acb0a960620d667956d6dbdaca368b026998 SHA-256: 47f87bb4410f8ac4f06469d63b78955fb6298ef3de615fa804be4371c5f363ba
124 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9369

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://druttle.ru/aws?utm_term=tamu+association+of+former+students+jobs PDF link annotation
    • https://cdn.sqhk.co/jesotipo/dHuhfjc/3353499866.pdfIn PDF document text
    • https://cdn.sqhk.co/torujazelome/xjfnYe6/83461670982.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411694/normal_5ff8246641a1e.pdfIn PDF document text
    • http://lefegesitorezod.iblogger.org/mens_formal_button_down_collar_shirts.pdfIn PDF document text
    • http://copyrightsupporthelpcenter.com/photo_editor_pixlr_free_online09s7s.pdfIn PDF document text
    • https://cdn.sqhk.co/kunimoxifagi/hhiieRD/yugioh_safe_zone_tips.pdfIn PDF document text
    • http://zdorovie-vashe-vse.xyz/290418173467sl8t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489255/normal_6003e07dc718d.pdfIn PDF document text
    • https://cdn.sqhk.co/zukuxenopo/LjjLThd/ninja_run_2_unblocked.pdfIn PDF document text
    • http://ita-fitness.fun/nba_basketball_mobile_game14dup.pdfIn PDF document text
    • https://cdn.sqhk.co/lokiwejawe/gjangij/background_images_windows_10_mail.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415080/normal_5fefe0d64a7f8.pdfIn PDF document text
    • https://cdn.sqhk.co/wutalididow/oQih1gh/91504942829.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366665/normal_6001a82776d47.pdfIn PDF document text
    • http://prizinsta24.space/ssc_stenographer_2018_form_fill_upazaqn.pdfIn PDF document text
    • https://cdn.sqhk.co/tarozawowe/bXsieL7/sajanabirudotelabulela.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420764/normal_5fe9b604ba4ff.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/adobe_acrobat_apple.pdfIn PDF document text
    • http://xilawon.epizy.com/49831681550.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/21892074948.pdfIn PDF document text

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