Malicious PDF — malware analysis report

Static analysis result for SHA-256 8670a0e51bebdcf8…

MALICIOUS

PDF

66.6 KB Created: 2021-02-06 19:36:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3b7073482b7ed132396e23a59e6d0c4a SHA-1: 061ded17ecb37d0fcdd77a48b5abfef12a08a030 SHA-256: 8670a0e51bebdcf8d1820f1a495e518fee5d86b54720469f02ad0d5a8e44ac67
124 Risk Score

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 0.9558

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://baarspo.ru/aws?utm_term=toronto+time+out+guide PDF link annotation
    • http://italysummer.space/fundamentals_of_computer_graphics_3rd_editionrh1z7.pdfIn PDF document text
    • http://lemixop.iblogger.org/gradiente_albumina_serica_ascitis.pdfIn PDF document text
    • http://damvglaz6.xyz/wusulofitarebesujqia83.pdfIn PDF document text
    • https://cdn.sqhk.co/seponidozit/hjdGeLw/portland_winterhawks_roster_2017-_18.pdfIn PDF document text
    • https://muwunijika.weebly.com/uploads/1/3/1/3/131398004/c1cdb0ba4df.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/fAahfjd/nobisita.pdfIn PDF document text
    • https://xurobogi.weebly.com/uploads/1/3/1/1/131163732/jogexatapagogi.pdfIn PDF document text
    • http://nout-prodat.site/vebujesewinu5gl8g.pdfIn PDF document text
    • https://wiwofuda.weebly.com/uploads/1/3/2/3/132303082/ziluzupobojaga_furelebowowumi_sivigotazi.pdfIn PDF document text
    • https://cdn.sqhk.co/bebomopakax/khihjif/datijezexiwakadizazusa.pdfIn PDF document text
    • http://losmopaka.site/brian_carn_gayf3jr1.pdfIn PDF document text
    • https://cdn.sqhk.co/dixejetafap/HLkjjem/halloween_store_nyc_14th_street.pdfIn PDF document text
    • https://mepodatadun.weebly.com/uploads/1/3/1/4/131452799/1257765.pdfIn PDF document text
    • http://gotazuvibidok.epizy.com/zutoxopigelitifal.pdfIn PDF document text
    • http://fepasike.epizy.com/dumedepe.pdfIn PDF document text
    • http://rekekolulopar.rf.gd/54464050552.pdfIn PDF document text
    • http://vojapulipono.epizy.com/38277451951.pdfIn PDF document text
    • http://dujofaxuro.rf.gd/korevojixusu.pdfIn PDF document text
    • http://zezazemana.epizy.com/bts_all_photos.pdfIn PDF document text
    • http://zogivumomu.epizy.com/38880203016.pdfIn PDF document text
    • http://tukutuxobolekub.epizy.com/nasarineduzapisu.pdfIn PDF document text

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