Malicious PDF — malware analysis report

Static analysis result for SHA-256 def071742090abca…

MALICIOUS

PDF

49.9 KB Created: 2021-05-15 15:37:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6c14e4ef2aa749542dcb8b5853a50d9a SHA-1: 2422a110f06833662a885a4fc1176db701ccc2e0 SHA-256: def071742090abca671e15411dfce299dded915ee77a7c75863dc5fd54cbfd8a
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 0.7209

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://golowaki.ru/wb?keyword=software%20architecture%20interview%20questions%20shivprasad%20koirala%20pdf%20free%20download PDF link annotation
    • http://nakalabaxis.mywebcommunity.org/boss_up_book_download.pdfIn PDF document text
    • http://ruzamaji.getenjoyment.net/dupematugejowabiweripo.pdfIn PDF document text
    • http://raisinshq.club/3791510811y49jt.pdfIn PDF document text
    • http://pusatokolerax.mywebcommunity.org/share_market_company_name_list.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380393/normal_5ff0ac7aeefd8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390996/normal_5ffcf189400ea.pdfIn PDF document text
    • http://varnisvakq.ru/psat_math_test_no_calculator_answerstwtes.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/architect_personality_ebook.pdfIn PDF document text
    • http://xebubux.sportsontheweb.net/tatukojigukogenefuneki.pdfIn PDF document text
    • http://zakewabo.scienceontheweb.net/mysql_command_line_reference.pdfIn PDF document text
    • http://jiteruruw.sportsontheweb.net/big_green_egg_cookbook.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368782/normal_5fdb2403607ea.pdfIn PDF document text
    • http://naliputa.mywebcommunity.org/3d_exporter_for_autodesk_autocad.pdfIn PDF document text
    • http://bumawusuka.mypressonline.com/bsc_3rd_year_inorganic_chemistry_notes_download.pdfIn PDF document text
    • http://saporik.scienceontheweb.net/deadlock_in_operating_system_tutorialspoint.pdfIn PDF document text
    • http://nopotaz.medianewsonline.com/assurance_and_insurance.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472208/normal_6041b629afefa.pdfIn PDF document text
    • http://mnclassis.org/ardaas_karaan_full_movie_720p_filmywapdllji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b25f7f4-ed9f-4fca-958b-6959953408b8/craftsman_18_inch_40cc_chainsaw_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17310519-69dc-4cfd-9331-5a18ac8e237b/jbl_flip_3_bluetooth_manual.pdfIn PDF document text
    • http://gudugapapilile.atwebpages.com/zigeno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67d6f76e-55cf-4f89-b980-99bbd01c6c63/ziditumutiveri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65117c60-58b1-4097-9d5d-eb287da6adf9/gajowevujiziri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b303a21-9988-423f-a8eb-1160bf2f1dca/82807009237.pdfIn PDF document text

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