Malicious PDF — malware analysis report

Static analysis result for SHA-256 c568c40fbb670293…

MALICIOUS

PDF

56.3 KB Created: 2021-04-07 01:16:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a83031e2948b04b6f8f07ae3595bd166 SHA-1: 740dfac0e3312e503be6f211f21aed2b9e21f3ac SHA-256: c568c40fbb670293b4a705a7ee83e97b95155765ddc9e0d042c086526d8af82b
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and the presence of an external URI. The heuristic 'PDF_IMAGE_LURE' indicates it's designed to trick users into clicking a link, likely leading to a malicious site or download. The ML classifier and ClamAV detection further support its malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8828

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 56 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://midufefew.ru/strik?utm_term=why+does+gluten+free+food+taste+so+bad
    • http://pressit.space/6278703485nq5y4.pdf
    • http://samejeno.iblogger.org/how_many_heavens_are_listed_in_the_bible.pdf
    • http://zitaranitu.22web.org/exercice_sur_les_accents_cm2__imprimer.pdf
    • https://cdn.sqhk.co/gobejilu/ejgdz0p/54235868651.pdf
    • http://azakalaza5.xyz/sinopsis_del_libro_la_noche_de_tlatelolco8n8w9.pdf
    • http://true-board1.club/nokia_3.1_android_one_hard_resetxqe5r.pdf
    • https://cdn.sqhk.co/bevoletef/kqfhbhb/wibeselovo.pdf
    • http://lngcliente.com/16835925803b4gi6.pdf
    • https://cdn.sqhk.co/soziwariru/bLbjick/misubaxuwufevapebaperoz.pdf
    • https://cdn.sqhk.co/loxusovi/haGtii2/7639150844.pdf
    • http://keep-travel.com/annamayya_telugu_movie_songs_naa_songs6vfw4.pdf
    • http://rogojureli.22web.org/39931098799.pdf
    • http://moneymaya.site/kovibukavepokofukamefu53ekr.pdf
    • https://uploads.strikinglycdn.com/files/3b03c8f9-de4a-4bec-9b26-0903f47c0711/how_do_you_renew_your_drivers_license_during_covid-19.pdf
    • http://lavavil.rf.gd/apsara_skin_care_sheetal.pdf
    • http://veroxeron.epizy.com/living_buddha_living_christ_summary.pdf
    • https://uploads.strikinglycdn.com/files/24a5120e-7dc8-4990-8668-c6a6bf83af48/53541762498.pdf
    • http://guzumirofega.epizy.com/bengali_style_english_font_free.pdf

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