Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b1fecc872da151c…

MALICIOUS

PDF

62.3 KB Created: 2021-04-06 04:49:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 66b1bb6e596b06e024448838ec785ac3 SHA-1: 4fbedc5df8c36a0caaf17638d31a14de6ff23e6b SHA-256: 7b1fecc872da151c5a4fc7c82422c7cab4607a35d1a2dda0c957cbae6c2e6636
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 0.9547

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://pelibifir.ru/award?keyword=pdf+to+autocad+2020+converter PDF link annotation
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdfIn PDF document text
    • http://nesebonuvobeju.getenjoyment.net/balawigapibetaxomemen.pdfIn PDF document text
    • http://leree6.club/583028003ouo8y.pdfIn PDF document text
    • http://italiahot.fun/39_bcs_result_2020hpz9k.pdfIn PDF document text
    • http://4kuhd.me/what_does_bible_say_about_submissive_wifeuvgy8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410206/normal_60623e2656f4a.pdfIn PDF document text
    • https://dorijalasenotom.weebly.com/uploads/1/3/5/3/135327318/xopodilodufojot.pdfIn PDF document text
    • https://nenawopoweso.weebly.com/uploads/1/3/1/4/131406478/75638f509a4f3.pdfIn PDF document text
    • http://woziwowariv.sportsontheweb.net/67439609624.pdfIn PDF document text
    • http://lejifip.sportsontheweb.net/775189241.pdfIn PDF document text
    • http://lofoporubatul.mygamesonline.org/52490534980.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470040/normal_5fd34981a9523.pdfIn PDF document text
    • http://vostokzapad.su/74849755599sq0ae.pdfIn PDF document text
    • https://dikubudekoguzo.weebly.com/uploads/1/3/1/8/131857294/4175681.pdfIn PDF document text
    • http://ruvogodozipabiv.scienceontheweb.net/orca_quantum_chemistry_program_download.pdfIn PDF document text
    • https://dazowuxope.weebly.com/uploads/1/3/4/3/134319454/rimumexi-beruludax-kevobipe-gewemaxuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1e9212a-2de9-4d2e-80f5-e42662f91839/brother_hl_2170w_wireless_installation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9d96c53-1c9d-429d-8fd1-0f0d7c64cdda/fubaki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/134231af-a6b0-4cf3-a293-687d731857d3/1491_new_revelations_of_the_americas_before_columbus.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/sound_of_silence_sheet_music_free.pdfIn PDF document text
    • http://bowegasobufur.myartsonline.com/39204423814.pdfIn PDF document text
    • http://lejiletuvasipib.onlinewebshop.net/kw_to_amps_conversion_table.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/505e28ea-0990-4ebc-8d7e-2f0b4c4a418a/what_is_a_good_hyperbole.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d64130e-d2ad-4ad5-89bf-b947bdb1f322/41364967556.pdfIn PDF document text

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