Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7b8e4d562b0bf7b…

MALICIOUS

PDF

67.0 KB Created: 2021-05-16 00:40:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e3dfdad672a2d2151920fac544e9d7e0 SHA-1: 21e2b2ec39c218b23dbacf8b3f19ed6246c86e99 SHA-256: c7b8e4d562b0bf7b538e87f89d319da8733201044cfdc87cfd6ba6f4f2dd6321
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 0.9571

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://dafemum.ru/strik?utm_term=weed+eater+riding+lawn+mower+12.5+hp PDF link annotation
    • http://kofodotig.sportsontheweb.net/garaf.pdfIn PDF document text
    • http://melidagerukebel.sportsontheweb.net/apostles_creed_in_english_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485173/normal_5fcbff75dcd39.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406782/normal_5ff0a30d6d0dd.pdfIn PDF document text
    • http://bahis-sikayet.com/15292148187o1syo.pdfIn PDF document text
    • http://bioforce-co.site/lelusesiwirejazuzuzogh2mb.pdfIn PDF document text
    • http://servisvds.ru/18383368820t312z.pdfIn PDF document text
    • http://jinevul.mygamesonline.org/lang_leav_books_list.pdfIn PDF document text
    • http://e-sparks.ru/king_kutter_6_finish_mower_blades6gjr2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427313/normal_5ffc664b4981f.pdfIn PDF document text
    • http://pixizosusonaxij.sportsontheweb.net/39579645874.pdfIn PDF document text
    • http://islta.fun/5196180271svh92.pdfIn PDF document text
    • http://kawlites.online/how_to_turn_water_heater_pilot_on7uiex.pdfIn PDF document text
    • http://lamupimifuban.onlinewebshop.net/what_can_alexa_do_on_fire_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d5440c7-4994-4d02-879b-abac76da1555/why_does_my_garage_door_not_close_sometimes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d5ff7f4-9e8f-43c2-9ca8-4c9b25787e38/nudanipisawokivapazereno.pdfIn PDF document text
    • http://xijewixevav.onlinewebshop.net/english_test_b1_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e626666-9675-4ee3-9db7-6c8ce31f4972/63637204846.pdfIn PDF document text

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