Malicious PDF — malware analysis report

Static analysis result for SHA-256 143805c1c3a2fd3c…

MALICIOUS

PDF

62.5 KB Created: 2021-03-02 20:35:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e26acd48222aac7cdeb4258d78574163 SHA-1: f989713de1628b4bbdb144d02f912502f9f256ed SHA-256: 143805c1c3a2fd3c9213f6b259816cc9a6223860098f8641d6d69bc08be38eb2
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 0.8798

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://zajinet.ru/strik?utm_term=sword+art+online+fatal+bullet+dlc+3+walkthrough PDF link annotation
    • http://zelafagilu.iblogger.org/overkill_lisp_autocad.pdfIn PDF document text
    • http://volazasi.iblogger.org/muxosezawiragulugifizena.pdfIn PDF document text
    • http://fitdieta.com/gatagedemikup6qf2j.pdfIn PDF document text
    • http://oneitshop.info/deborah_harkness_all_souls_trilogy_free_download35scn.pdfIn PDF document text
    • http://ovca.space/dream_interpretation_of_dead_pet_dogp39z9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367952/normal_5fcbc62d02887.pdfIn PDF document text
    • http://dogorove.22web.org/48205403906.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423155/normal_5fe29a94a8df7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417033/normal_60099c8030c82.pdfIn PDF document text
    • http://moneymaya.site/meaning_of_equal_protection_of_law_in_the_philippines1yyof.pdfIn PDF document text
    • http://cmbespaceclient.xyz/ck100_auto_key_programmer_user_manual9w32s.pdfIn PDF document text
    • http://nicechange.space/114220694742uf0v.pdfIn PDF document text
    • http://vabizawez.epizy.com/the_ruby_on_rails_tutorial_6th_ed._download.pdfIn PDF document text
    • http://fibafewupo.epizy.com/one_page_business_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/what_are_the_ranks_in_the_us_military.pdfIn PDF document text
    • http://metepukiwameme.epizy.com/29506827199.pdfIn PDF document text

Related samples 8

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

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