Malicious PDF — malware analysis report

Static analysis result for SHA-256 13080ce9549b1203…

MALICIOUS

PDF

109.4 KB Created: 2021-02-19 02:36:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: fb1c88bb146b6c03f56e18d130465d76 SHA-1: b99b628e8c712fc905d26a23c8a52c4b3ad42d58 SHA-256: 13080ce9549b1203b197e617da5c50c71e3147ba5bf9e5c19e3a68c0dc2940ff
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 0.7223

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=libro+de+la+oit+estudio+del+trabajo+pdf PDF link annotation
    • http://hookup681.site/vurutusunaduduxelyzd6.pdfIn PDF document text
    • http://nosinoski.shop/numeral_literal_e_ordinaltulps.pdfIn PDF document text
    • https://cdn.sqhk.co/vuxesojogugu/gfpihUG/iphone_digital_ringtone_mp3_download_high_volume.pdfIn PDF document text
    • http://leopards.space/optiplex_7010_manualcunuc.pdfIn PDF document text
    • https://cdn.sqhk.co/pazaxefuma/gQKjhn0/sexek.pdfIn PDF document text
    • http://all-host.site/beginners_guide_to_constructing_thez0vmb.pdfIn PDF document text
    • https://cdn.sqhk.co/zoravuzulop/nCT7hhM/77741941386.pdfIn PDF document text
    • https://jadetikoj.weebly.com/uploads/1/3/5/3/135350844/164ef8ce9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444096/normal_5fd662e8d1f59.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462350/normal_6005c9e1f2861.pdfIn PDF document text
    • http://wewedaz.iblogger.org/18139759118.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482863/normal_60291cf972e71.pdfIn PDF document text
    • http://todayit.pro/83985409135f46xi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404515/normal_6006274e9e5f8.pdfIn PDF document text
    • http://fizuxobitunoge.epizy.com/rusufokozimolijovute.pdfIn PDF document text
    • http://sirirasefag.rf.gd/vimeo_free_movies.pdfIn PDF document text
    • http://dulizarunagisu.epizy.com/argumentation_englisch_zeitform.pdfIn PDF document text

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