Malicious PDF — malware analysis report

Static analysis result for SHA-256 37e5e0770b60ff99…

MALICIOUS

PDF

69.2 KB Created: 2021-06-05 14:43:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0cf96ec4647ec37dbc5291eb1b197c97 SHA-1: 7328f7ef73c066a7830f1745055af8d7659b63f3 SHA-256: 37e5e0770b60ff998112acf658ec092098d7cd2bb92be4a1459e11993d0cf5f8
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, with a high-confidence heuristic identifying it as a link farm on disposable hosting. One prominent URL, 'https://coretry.ru/pbw?utm_term=barbie+princess+and+the+pegasus+full+movie', is presented in a way that suggests it's a search result for a movie, a common lure. ClamAV detection and ML classification further support its malicious nature, indicating it's likely a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6982

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://coretry.ru/pbw?utm_term=barbie+princess+and+the+pegasus+full+movie
    • https://detalejutapebis.weebly.com/uploads/1/3/4/6/134610814/tewurej_zexoferewovo.pdf
    • https://cdn-cms.f-static.net/uploads/4373243/normal_60531d5686a39.pdf
    • https://cdn-cms.f-static.net/uploads/4473359/normal_6058c6a647f67.pdf
    • https://cdn-cms.f-static.net/uploads/4501479/normal_602240f59b1c0.pdf
    • https://static.s123-cdn-static-d.com/uploads/4501233/normal_60b3120d56f4d.pdf
    • https://cdn-cms.f-static.net/uploads/4470014/normal_606c2ea531b3a.pdf
    • https://static.s123-cdn-static.com/uploads/4375515/normal_5fc96d83f2c3d.pdf
    • https://sawonelezaxiso.weebly.com/uploads/1/3/4/5/134588179/7373918.pdf
    • https://cdn-cms.f-static.net/uploads/4471256/normal_6043ec372ffb5.pdf
    • https://uploads.strikinglycdn.com/files/25b2b658-9ed2-4239-87f2-9f319b723d4e/2587159209.pdf
    • https://uploads.strikinglycdn.com/files/6af8ff55-082c-4962-9b0d-df9837c0d0a9/bamapudomud.pdf
    • https://uploads.strikinglycdn.com/files/6c75b63b-a86a-48a3-a418-921843d05849/resumen_del_libro_de_las_batallas_en_el_desierto_por_capitulos.pdf
    • http://fixiguru.pbworks.com/f/a_christmas_element_word_search_answers.pdf
    • https://uploads.strikinglycdn.com/files/b7bca0c5-a3bc-49ef-b462-1f3f866a8f96/how_to_play_gta_rp_on_xbox.pdf
    • https://uploads.strikinglycdn.com/files/14b3ee25-a9a7-4e2d-b98f-485967bdf503/zutijaropexevanosijegeta.pdf
    • http://dejimebez.pbworks.com/w/file/fetch/144425925/how_to_write_a_formal_letter_in_english_example.pdf
    • http://lopasexosew.pbworks.com/w/file/fetch/144664773/cuphead_free_download_gamejolt.pdf
    • https://uploads.strikinglycdn.com/files/a06cedc3-9946-4f00-b25b-f242aece9761/26939300794.pdf
    • http://gabekujijud.pbworks.com/w/file/fetch/144546078/rainbow_six_siege_charms_amazon.pdf