Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfcb24e4916f3068…

MALICIOUS

PDF

53.8 KB Created: 2021-02-23 14:48:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 651830b72a503430eca13bcb1c2a94f4 SHA-1: 874e4d67fad68c0b42aeec703f63e5f9062bfab4 SHA-256: dfcb24e4916f306841c43cf23b76f4a184bd579075694b9476b49ca45a745bd9
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 0.6403

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://maypoin.ru/wb?keyword=what%20not%20to%20eat%20on%20a%20wheat%20free%20diet PDF link annotation
    • http://cccckkkkkdd.space/what_is_combining_like_terms_in_mathu3r99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407807/normal_6016e4336ecd4.pdfIn PDF document text
    • http://about-igsupport.com/marvel_movie_filmyhitoyzci.pdfIn PDF document text
    • http://saxefitipar.iblogger.org/o_que_e_capitalismo.pdfIn PDF document text
    • https://ketadamofexawun.weebly.com/uploads/1/3/5/3/135349072/af4e6e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407085/normal_5ff28df622e31.pdfIn PDF document text
    • https://toruganaduloxo.weebly.com/uploads/1/3/5/3/135347606/zagofiwerefurezax.pdfIn PDF document text
    • http://tuimag.ru/63387533253u25fd.pdfIn PDF document text
    • http://dorightschool.com/european_sovereign_debt_crisis1snhv.pdfIn PDF document text
    • http://tiktokfrance.fun/tavefimovotazqtbcr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386086/normal_60088d5e9551c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445541/normal_60331df011a42.pdfIn PDF document text
    • http://lofuzuwe.22web.org/sadutumiwume.pdfIn PDF document text
    • http://bavunexebiri.iblogger.org/witikululosufidokad.pdfIn PDF document text
    • http://ersoil.fun/kaxovazagumipedexegiwavipdk16d.pdfIn PDF document text
    • http://shopwithsale.website/lujemodogaridenedozapoza3bfqv.pdfIn PDF document text
    • http://alania365.ru/housefull_3_movie_download_khatrimaza9rqsr.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/imperative_formal_spanish_conjugation.pdfIn PDF document text
    • http://gowasofejav.rf.gd/14711255495.pdfIn PDF document text

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